Please help!! Use the following image below to answer Questions 30 and 31.
30. The structure labeled "B" is pointing to chambers that contain a cell. What is the name
inside this chamber?
A.
B. Osteoblast
C. Osteocyte
Chondrocyte
31. The structure labeled "E" is called:
A. Interstitial lamellae
B. Circumferential lamellae
C.
D. Osteocytes
Central Canal
Answers
The structure B is an Osteocyte
and the structure E is called Central canal
so the correct options are
30. C
31. C
The image is of an Osteon of a compact bone
An Osteon refers to the structural unit of a compact bone.
The Osteocyte is a bone cell which is doing in spaces within lamellae known as lacunae
They play a major role in Bone growth and metabolism as it has both growth promoting activites ( by secreting growth factors) and growth inhibiting activites ( by secreting sclerostin )
Central canal or Haversian Canal as they call it is a series of microscopic canals found in bone. They contain all the vessels ( generally capillaries ) and nerve fibres thus providing nutrition and sensation to bone. Two adjacent Haversian canals are connected by a Volksmans channel
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The structure labeled "B" in the image is pointing to chambers that contain cells, and the name for the cells inside this chamber is Osteocyte. The structure labeled "E" in the image is called the Central canal.
The main structural component of compact bone tissue is the osteon, commonly referred to as the Haversian system. It is responsible for giving bones their firmness and strength. Each osteon is a cylinder-shaped structure made up of several parts.
Central CanalLamellaeOsteocytesCanaliculiInterstitial LamellaeCircumferential LamellaeTogether these parts form the osteon, which is a solid and well-organized structure within the dense bone tissue. This configuration makes it possible for bone to support, exchange and maintain itself effectively. Under a microscope, compact bone has a distinctive appearance with a concentric ring-like structure due to the presence of osteons.
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Related Questions
Assume that a pinhead is 1mm how many spherical bacteria lined up side by side would fit across the pinhead
Answers
The no. of bacteria lined up side by side would fit across the pinhead is 1000.
We know that the average size of cocci bacteria is 1 micrometer and 1mm = 1,000 micrometer.
Thus, on a 1mm size pinhead a total of 1000 cocci bacteria should be fit.
Cocci bacteria are spherical because their bodies are round. We can determine whether they are gram-positive or gram-negative by looking at the makeup of their cell walls. There are numerous genera in the Coccus class.
The Greek term "coccus" denotes a spherical body. Staphylococcus, a species that causes phenomena in humans, is the greatest example of a cocci. They are really tiny in size. All cocci bacteria differ from one another in terms of their physiological characteristics, but their bodies are always round. This means that while their size and colour may vary, the shape of their bodies is always cocci or round.
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Which of the following had the biggest impact on species growth and diversity?
Answers
Which statement describes the law of superposition?
Sedimentary rocks were originally in horizontal layers.
In horizontal rock layers, each layer is younger than the one below it.
Rock layers must be in existence before something can happen to them.
Rocks that are not in horizontal layers were shifted by some geologic event.
Answers
Answer:
the answer is b (horizontal rock layers, each layer is younger than the one below it)
Explanation:
in rock layers, the top layer of a rock will be the newest, or youngest. and the very first layer at the bottom will be the oldest layer since the layers build on top of each other, hope that helps :)
Sedimentary rocks were originally in horizontal layers best describe law of superposition.
What is law of superposition?The law of superposition is a principle that guide stratigraphy stating which state that within a sequence of layers of sedimentary rock, the oldest layer is normally found at the base and that the layers continue to become younger with ascending order in the sequence.
Therefore, Sedimentary rocks were originally in horizontal layers best describe law of superposition.
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4. The ATP yield from 2 moles of mitochondrial NADH under aerobic conditions in a eukaryotic cell would be: which option is correct a) 1 mole of ATP b) 2 moles of ATP c) 3 moles of ATP d) 4 moles of ATP e) 6 moles of ATP
Answers
The ATP yield from 2 moles of mitochondrial NADH under aerobic conditions in a eukaryotic cell is approximately 4 moles of ATP.
During oxidative phosphorylation, each mole of NADH can generate around 2.5 to 3 moles of ATP. Therefore, for 2 moles of NADH, the total ATP production would be in the range of 4 to 6 moles of ATP. While the more precise estimate falls within the 4 to 6 moles range, the closest option provided is 4 moles of ATP. It is important to note that the exact ATP yield can vary depending on factors such as the efficiency of the electron transport chain and the specific conditions within the cell.Since there are 2 moles of mitochondrial NADH, the total ATP yield would be around 4 to 6 moles of ATP. However, the most accurate option among the given choices is 4 moles of ATP.
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What is the differences of mitosis and meiosis
Answers
mitosis refers to the parts of the original nucleus into two nuclei. On the other hand, meiosis refers to each having half chromosomes of the original cell.
in mitosis, there is the maintenance of chromosomes takes place while meiosis leads to a reduction in the no. of chromosomes. There are no variations in mitosis and variants occur in meiosis.
hence at last we can say that the above are the major difference between mitosis and meiosis. All of the explained differences will clearly lead to identifying them in particular. mitosis and meiosis plays a vital role in formation of gametes.
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Diploid plants have two sets of chromosomes. Polyploid plants have more than two sets of chromosomes, are often larger, and have more desirable characteristics. To create polyploid plants, plant breeders can treat diploid plants with a chemical that prevents the separation of sister chromatids during mitosis. Resulting cells that have any partial chromosome sets, even if in addition to one or more complete chromosome sets, typically do not survive this process.
If a diploid plant cell treated with such a chemical goes through a single round of mitosis, what is the MOST LIKELY genetic composition of the resulting cells that survive?
Answers
Answer:Both haploid and diploid cells can undergo mitosis. When a haploid cell undergoes mitosis, it produces two genetically identical haploid daughter cells; when a diploid cell undergoes mitosis, it produces two genetically identical diploid daughter cells.
Answer:
its b
Explanation:
To produce a tetraploid plant, the alkaloid colchicine is applied to the terminal bud of a branch. All the cells in the developing branch will be tetraploid (4n) with four sets of chromosomes. This includes cells of the stem, leaves, flowers and fruit. Gametes (egg and sperm) produced by a flower on this tetraploid branch will be diploid (2n) with two sets of chromosomes. A flower on the normal diploid (2n) branch will produce haploid (n) gametes containing one set of chromosomes.
Stages of mitosis in the formation of tetraploid cells. The original mother cell is diploid (2n). During anaphase the chromatids separate and move to opposite ends of the cell. Colchicine causes the dissolution (depolymerization) of protein microtubules which make up the mitotic spindle in dividing cells. This leaves the cell with twice as many single chromosomes (four sets rather than two). When this cell divides, each of the two daughter cells will have fours sets of chromosomes, a total of eight chomosomes per cell. [Note: Spindle poisons such as colchicine are used to prevent tumor cells from dividing in certain chemotherapy treatments.]
The botanical term parthenocarpy refers to the development of the ovary of a flower into a fruit without fertilization. [The biological term parthenogenesis refers to the development of an egg without fertilization.] Fruits that develop parthenocarpically are typically seedless. Some seedless fruits come from sterile triploid plants, with three sets of chromosomes rather than two. The triploid seeds are obtained by crossing a fertile tetraploid (4n) plant with a diploid (2n) plant. When you buy seedless watermelon seeds, you get two kinds of seeds, one for the fertile diploid plant and one for the sterile triploid. The triploid seeds are larger, and both types of seeds are planted in the same vicinity. Male flowers of the diploid plant provide the pollen which pollinates (but does not fertilize) the sterile triploid plant. The act of pollination induces fruit development without fertilization, thus the triploid watermelon fruits develop parthenocarpically and are seedless. Most bananas purchased at your local supermarket came from sterile triploid hybrids. The fruits developed parthenocarpically and are seedless.
Where are ribosomes produced?
Answers
Answer:
In bacterial cells, ribosomes are synthesized in the cytoplasm through the transcription of multiple ribosome gene operons. In eukaryotes, the process takes place both in the cell cytoplasm and in the nucleolus, which is a region within the cell nucleus.
Hope this helps!
What’s the correct answer answer asap for brainlist
Answers
In muscle contraction Actin and myosin comes in and out of the cell to make it thicker or thinner which changes its length.
Muscle contraction takes place while the skinny actin and thick myosin filaments slide beyond every other. It is typically assumed that this procedure is pushed through cross-bridges which expand from the myosin filaments and cyclically engage with the actin filaments as ATP is hydrolyzed. In order for a skeletal muscle contraction to arise;
There need to be a neural stimulus. There need to be calcium withinside the muscle cells. ATP need to be to be had for energy.
Muscle spasms can arise because of numerous causes, including a loss of nutrients, muscular tension, overuse of the muscle, extended call for of blood flow, or diverse underlying clinical conditions.
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A certain gene in a chromosome has the following sequence of nucleotides:
ACC TTA GGC CCT TCA
How many nucleotides are in the gene?
Answers
Answer:
30
Explanation:
A gene is a portion of DNA, in this portion we have 15 nucleotides, but you must know that DNA is composed of two strands, so these 15 nucleotides are present on one strand and their corresponding nucleotides are present on the second strand so the total number of nucleotides equals 15x2=30.
QUESTION 3 The diagram below shows a sunken stoma which is an adaptation found in the leaves of some plants that live in very dry conditions. 3. mesophyll cell 3.2 epidermal cell air chamber MASDR guard cells With reference to the diagram, explain how a sunken stoma is able to reduce transpiration. (3)
Answers
A sunken stoma is an adaptation found in the leaves of some plants that live in very dry conditions. The diagram below shows the structure of a sunken stoma and how it works:
As the diagram shows, the stoma is located in a sunken pit in the leaf. The walls of this pit are made up of two specialized epidermal cells called guard cells. These cells can swell or shrink to control the opening and closing of the stoma. When the stoma is open, gases can enter and exit the leaf.
When it is closed, the leaf is sealed off from the outside environment and gases cannot pass through. This helps to reduce water loss from the leaf and prevent desiccation. To further reduce transpiration, the sunken stoma also has an air chamber surrounding it.
This chamber is created by specialized mesophyll cells that surround the stoma. These cells have a compact arrangement that creates a space for air to collect. The air in this chamber is humid and saturated with water vapor, which helps to slow down the rate of water loss from the leaf. In summary, the sunken stoma reduces transpiration by having a specialized structure that allows it to close tightly and be surrounded by a humid air chamber.
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Describe how removing the carnivore will effect the population of producers
Answers
Answer:
If there were no carnivores, the herbivore populations would explode and they will rapidly consume large amounts of plants and fungi, growing until there is not enough food to sustain them. Eventually, the herbivores would starve, leaving only those plants that were distasteful or poisonous to them.
Explanation:
Brainliest PLZ
A scientist was investigating why several fish caught from a local stream displayed similar mutations. He found that the water temperature of the stream was elevated since an industrial plant began discharging heated water into the stream. The scientist concluded that increased water temperature during the egg phase led to the mutation in the fish. According to this conclusion, the mutation was caused by
Answers
Answer: Increased water temperature caused by the industrial plant.
Explanation: this is explained in the text lol.
Answer:
An Environmental Condition
Explanation:
It explains in the text that it started when an electrical plant began discharging heated water into the stream.
1. What was Hans Molisch’s hypothesis? Why did he leave the leaf in the dark for two days? 2. Why was the leaf boiled in alcohol? 3. Why was iodine used?
Answers
1. Hans Molisch was a Austrian botanist that create the Molisch's test, that is used to indicate the presence of carbohydrates by the dehydratation of the crabohydrate by sulfuric acid producing an aldehyde molecule that creates a violet ring in the test tube. The hypothesis is the study of carbohydrate concentration in leaves and how it can be test with the analyze of the reaction between the carbohydrate and an acid to form a aldehyde in a ethanol 95% solution.
To make the test the leaves are in the dark to stop the photoshynthesis process and ensure a more accurate value of carbohydrate concentration in rest stage (without the production of new sugars from metabolic source).
2. The leaf is boiled in alcohol solution to dehydrate the tissue and make the reaction happen faster between the carbohydrates and the acid molecule, 3. being used iodine was a dye for the clearest visualization of the experiment.
september would the earth be experiencing a solstice or an equinox
how do you know
Answers
In September the earth will be experiencing an equinox
Equinoxes occur between March and September. When the Sun's rays strike the equator at midday and at a 90° angle, it is considered an equinox. It stands for the idea that day and night have equivalent lengths. The sunset and dawn are separated by 12 hours everywhere on Earth. One may observe how quickly the sunset and dawn hours shift throughout the day the farther one goes from the equator.
Whereas, solstices occur in June and December. The contrary is visible close to the solstices. For a few days, both the sunset and sunrise appear to be constant. Over the course of the year, the time of day when the sun is directly overhead where one lives also gradually changes.
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Topic Test
Topic Test Active
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Which of the following statements about cultural variations is true?
A. Individuals living in a culture express that culture in predictable and identical ways.
B. Individuals living in a culture share no characteristics with those from different cultures.
C. Individuals living in a culture are experiencing a culture unchanged from the one of the
generation before them.
D. Individuals living in a culture tend to adapt to cultures and then adapt cultures to suit
themselves.
Please select the best answer from the choices provided
TIME R
03:5
Answers
Individuals living in a culture tend to adapt to cultures and then adapt cultures to suit themselves is true regarding cultural variations. The correct option is d).
Cultural variations refer to the differences in customs, beliefs, behaviors, and social institutions among different cultures. People within a particular culture may have different characteristics, attitudes, and beliefs, and they may express their culture in different ways. Culture is also not static, it changes over time, and individuals living in a culture may adapt to the culture and, in turn, influence the culture to suit their needs.
Therefore, cultural variations are not predictable or identical and are subject to change over time. The d. Individuals living in a culture tend to adapt to cultures and then adapt cultures to suit themselves is true.
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inguinal lymph nodes are found in
Answers
for a nuclear factor known as STAT3.
Based on the information in the passage, which protein domain of STAT3 is NOT predicted to play a role in its signaling?
O Nuclear localization domain
O Signal sequence domain
O DNA binding domain
O Protein binding domain
Answers
The protein domain of STAT3, which is not expected to play a role in STAT3 signaling, is the signal sequence domain. Correct answer: letter B.
The signal sequence domain of STAT3 is a protein domain that is not expected to play a role in STAT3 signaling. This domain is located at the amino-terminal end of the protein and is responsible for targeting STAT3 to the endoplasmic reticulum for further post-translational modification.
The signal sequence is a short hydrophobic region of about 20 amino acids that is recognized and bound by the SRP (signal recognition particle) receptor of the endoplasmic reticulum membrane. Once bound, the SRP receptor helps STAT3 to enter the endoplasmic reticulum, where it can be modified, folded, and transported to its eventual destination.
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Classify the interactions as being direct or indirect competition.
Answers
1)A homozygous tomato plant with red fruit and yellow flowers was crossed with a homozygous tomato plant with golden fruit and white flowers. The F1 all had red fruit and yellow flowers. The F1 were testcrossed by crossing them to homozygous recessive individuals, and the following offspring were obtained:
Red fruit and yellow flowers41
Red fruit and white flowers7
Golden fruit and yellow flowers8
Golden fruit and white flowers44
How many map units separate these genes?
A)17.6
B)17.1
C)15
D)18.1
2)Which of the following, if damaged, would most directly hinder RNA polymerase from attaching to the beginning of a gene?
A)introns
B)exons
C)UTR's (untranslated regions)
D)snRNA
E)promoter region
Answers
A purebred tomato plant with red fruit and yellow flowers was crossed with a purebred tomato plant with golden fruit and white flowers, and the map distance is 15, which is in option C. If the promoter region is damaged, RNA polymerase can't bind, which is in option E.
What is the map distance?The map distance indicates the distance between two genes that are present on the chromosomes, and when the map distance becomes more than 50%, it indicates the two genes are present on different chromosomes. Here, the red fruit and white flowers and the golden fruit and yellow flowers are recombinants, while the other two are wild types.
Hence, the map distance is 15, which is in option C, and if the promoter region is damaged, RNA polymerase can't bind, which is in option E.
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Make a model that shows how glucose is rearranged through cellular respiration to form new molecules. Include labels. Identify the number of each type of atom before and after the reaction takes place. Describe how energy is released in cellular respiration.
NEED HELP! I'LL GIVE BRAINIEST!! HURRY PLZ! Your answer is right down there
Answers
The Process of Cellular Respiration
Cellular respiration is the process of extracting energy in the form of ATP from the glucose in the food you eat. How does cellular respiration happen inside of the cell? Cellular respiration is a three step process. Briefly:
In stage one, glucose is broken down in the cytoplasm of the cell in a process called glycolysis.
In stage two, the pyruvate molecules are transported into the mitochondria. The mitochondria are the organelles known as the energy "powerhouses" of the cells (Figure below). In the mitochondria, the pyruvate, which have been converted into a 2-carbon molecule, enter the Krebs cycle. Notice that mitochondria have an inner membrane with many folds, called cristae. These cristae greatly increase the membrane surface area where many of the cellular respiration reactions take place.
In stage three, the energy in the energy carriers enters an electron transport chain. During this step, this energy is used to produce ATP.
Oxygen is needed to help the process of turning glucose into ATP. The initial step releases just two molecules of ATP for each glucose. The later steps release much more ATP.
The process is of cellular respiration. Cellular respiration is the process through which the glucose in the food you eat is converted into ATP, which is then converted into energy.
What is cellular respiration?
In the first stage, a procedure known as glycolysis breaks down glucose in the cell's cytoplasm.
The pyruvate molecules are delivered to the mitochondria in stage two. The organelles known as the cellular "powerhouses" of energy are called mitochondria
Pyruvate enters the Krebs cycle in the mitochondria after being transformed into a 2-carbon molecule. These cristae significantly expand the area of the membrane where most cellular respiration occurs.
Therefore, The process is of cellular respiration. Cellular respiration is the process through which the glucose in the food you eat is converted into ATP, which is then converted into energy.
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Gradual changes of species structure inhabiting a geographical area
A)Secondary succession
B)Primary succession
C)both aquatic and primary succession
D)Both secondary and primary succession
Answers
Primary succession occurs in an area where no soil exists, such as on a newly formed volcanic island, while secondary succession occurs in an area where soil is present but has been disturbed, such as after a wildfire or deforestation. In both cases, gradual changes in species structure occur over time.
How many chromosomes do the daughter cells of a liver cell with 88 chromosomes have?
Answers
Answer:The daughter cells each have
24
chromosomes.
Explanation:During interphase, the DNA in chromatin is replicated . In prophase, the chromatin condenses into chromosomes. Since the DNA was replicated during interphase, each chromosome in prophase is a copy of one chromosome. The chromosomes are now called sister chromatids and are held together at the middle, called the centromere.
8. Why does a virus require a living cell in order to reproduce?
O A virus does not contain organelles or cytoplasm.
O A virus does not contain a nucleic acid.
O A virus does not contain proteins or lipids.
O A virus does not contain genetic information.
Answers
Answer:
A virus doesn't contain genetic information
1. made of DNA holds genetic information
3. This type of ER transports and modifies lipids
4. type of respiration that does not use oxygen
6. Found only in plant cells, this surrounds the cell
8. the jelly like area in cell that hold organelles
13. type of transport that does not require energy
14. nerves that regulate responds to stimuli
Answers
Answer: im not sure
Explanation:
Should a supervisor be willing to accept constructive criticism from an employee they supervise?
A.
Yes, but only if the person being supervised has worked there longer than the supervisor.
B.
Maybe, if the supervisor and the person being supervised have worked together for a long time.
C.
No. It is the supervisor’s job to give constructive criticism, not an employee’s job.
D.
Yes. Giving and receiving constructive criticism can eventually make the workplace more positive.
Answers
A key strategy for encouraging your finance and accounting team members to continuously lifting the bar on their performance is constructive criticism, which is defined as courteous.
What is Constructive criticism?Employees in the millennial and generation z generations, in particular, look forward to receiving this type of feedback from managers on a frequent basis in order to advance meaningfully in their careers.
Constructive criticism is difficult to convey effectively, though. Managers have a delicate balance to strike between highlighting the good and guiding staff in how to resolve performance issues.
The fact that various employees react differently to feedback doesn't make the process any simpler. Most workers probably accept such criticism with grace.
Therefore, A key strategy for encouraging your finance and accounting team members to continuously lifting the bar on their performance is constructive criticism, which is defined as courteous.
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A marine biologist and cancer researcher worked together to isolate the green fluorescent protein (GFP) gene from a sample of jellyfish DNA. Scientists have successfully inserted this gene into a cancerous tumor in humans in order for the tumor to glow so it can be more easily removed during surgery. Once extracted from the jellyfish, how can scientists produce multiple copies of the GFP gene for medical applications?
A: Gel electrophoresis
B: Polymerase chain reaction
C: Restriction enzyme digestion
D: Transgenic technology
Answers
With the help of polymerase chain reaction, can scientists produce multiple copies of the GFP gene for medical applications.
What are the features of polymerase chain reaction?The polymerase chain reaction is a method widely used to rapidly make millions to billions of copies of a specific DNA sample.
PCR is based on three simple steps required for any DNA synthesis reaction: (1) denaturation of the template into single strands; (2) annealing of primers to each original strand for new strand synthesis; and (3) extension of the new DNA strands from the primers.
As PCR progresses, the DNA generated is itself used as a template for replication, setting in motion a chain reaction in which the original DNA template is exponentially amplified.
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what may happen to a solid when it is continuously exposed to heat?
Answers
When a solid is continuously exposed to heat, it may undergo a phase change and transform into a liquid or a gas.
This happens because heat causes the molecules in the solid to gain energy and vibrate more rapidly. As a result, the attractive forces between the molecules weaken, and the solid's structure begins to break down.
If the temperature continues to increase, the solid will eventually reach its melting point and transform into a liquid. This is known as melting or fusion. If the temperature continues to increase even further, the liquid may reach its boiling point and transform into a gas. This is known as vaporization.
However, not all solids will transform into a liquid or gas when exposed to heat. Some solids may undergo a chemical reaction instead, breaking down into new compounds or elements.
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Question 1
The heat from a lamp allows a lizard to remain warm. This is an
example of which type of heat transfer?
Cold Blood
Conduction
Radiation
Convection
Answers
Answer:
Answer is radiation
Explanation:
Took the test!
What process is happenning?
6CO2+6H2O>C6H12O6+6O2
Answers
Answer:
photosynthesis
Explanation:
because carbon dioxide and water react in the absence of sun light gives glucose
HELP: WILL MARK BRAINLIEST
Answer the blank
Answers
The Krebs cycle occurs in the matrix of the mitochondria and requires acetyl coenzyme-A (acetyl-CoA) that is produced from both lipids and carbs.
What is the Krebs cycle of cell respiration?The Krebs cycle of cellular respiration is the second step of this metabolic pathway which occurs in the mitochondrial matrix to generate NADH and FADH which are used during oxidative phosphorylation to produce ATP.
Therefore, with this data, we can see that the Krebs cycle of cell respiration is the second stage of this process and produces molecules required for ATP synthesis.
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