which type of cytoskeletal element is described as tough, ropelike fibers composed of a heterogenous group of related proteins like keratin? question 40 options: microfilaments intermediate filaments macrotubules macrofilaments microtubules
Answers
Microtubules are the type of cytoskeletal element which is described as tough, rope-like fibers composed of a heterogenous group of related proteins like keratin.
Microtubules are the polymeric structures made of tubulin as the monomer. Their function is to provide the shape and structure to the cells. They are present only in eukaryotic cells. These are also involved in chromosome segregation.
Keratin is a type of protein present in body parts like epidermis, hairs and nails. There are two categories of keratin: Keratin I and Keratin II. There are total 54 keratins present in the body. The function of keratin is to provide mechanical stability and integrity.
To know more about keratin, here
brainly.com/question/28790980
#SPJ4
Related Questions
what type of cell division results in growth
Answers
Answer:
mitosis
Explanation:
If a cell stains dark for the sdh test and light for the matpase test, how can we classify that cell?
Answers
Cell stained light for the metaphase test and dark for the SDH, then we can classify the cell as an oxidative cell.
What is metaphase?Metaphase, the second stage of mitosis, sees the chromosomes travel onto the spindle's equatorial plane.
What is the SDH test?Oxidative cell stains are dark for the SDH test and light for the metaphase test.SDH is an enzyme used in testing mainly to detect hepatocellular injury in cattle and horses.SDH enzyme is also detected in human tissues. The major sites where the SDH enzymes are found in humans are kidneys, seminal vesicles and kidneys.To know more about oxidative cells visit:
https://brainly.com/question/11574154
#SPJ4
which structure is specialized for the detection of the stimulus that triggers a phototaxic response in certain protists?
Answers
The specialized structure for the detection of the stimulus that triggers a phototaxic response in certain protists is called: eyespot.
Phototaxis is the movement of an organism by the detection of light. This process is particularly useful for the autotrophic organisms who can adjust themselves according to the most efficient light in order to perform photosynthesis.
Eyespot is an organelle particular present in various protists, involved in the function of photoreception. These are the small organelles with large amount of carotenoid pigment which helps in phototaxis. The eyespot can detect the intensity as well as the direction of incoming light.
To know more about phototaxis, here
brainly.com/question/16875173
#SPJ4
which of the following a is an pure substance?A.a salad B. sugar C. salt water D. cake batter
Answers
select all the characteristics of angiosperms called monocots.
- 70,000 species
- pollen grain with one pore
- one cotyledon
Answers
Monocots, a major group of angiosperms, are characterized by a single cotyledon, parallel leaf veins, and pollen grains with a single pore, comprising approximately 70,000 species including grasses, lilies, orchids, and palms, aiding in their classification and cultivation.
Monocots are a type of flowering plant belonging to the angiosperm group. They are characterized by having a single embryonic leaf, also known as a cotyledon. Monocots include approximately 70,000 species and are one of the two major groups of angiosperms, the other being dicots. Monocots are also identified by their pollen grain having a single pore or furrow, which is located at one end of the grain. This pore allows the pollen tube to grow and fertilize the ovule. Examples of monocotyledons include grasses, lilies, orchids, and palms.
These plants are usually herbaceous, meaning that they lack a woody stem, and have parallel veins on their leaves. In contrast, dicots have two cotyledons and have net-like veins on their leaves. Understanding the characteristics of monocots can help botanists and gardeners classify and cultivate these plants more effectively.
To know more about Monocots click here:
https://brainly.com/question/13048745
#SPJ11
Maintaining a certain calcium concentration is important for the proper functioning of which cell? Check all that apply.
Answers
nerve and muscle cells
Answer:
nerve
Explanation:
muscle
which of the following types of mutations would have severe effects? select one or more: a. nonsense mutations occurring in the sequences encoding amino acids near the c terminus of the protein b. conservative missense mutations c. nonconservative missense mutations affecting the active site of the protein d. nonsense mutations occurring in the sequences encoding amino acids near the n terminus of the protein e. frameshift mutations occurring in the sequences encoding amino acids near the n terminus of the protein f. silent mutations g. frameshift mutations occurring in the sequences encoding amino acids near the c terminus of the protein h. nonconservative missense mutations not in the active site of the protein
Answers
The following types of mutations would have severe effects such as A, C, D, E, and G statements because mutations are changes in the DNA that can happen on their own or because of things in the environment.
A: Nonsense mutations occurring in the sequences encoding amino acids near the C terminus of the protein.
C: Non-conservative missense mutations affecting the active site of the protein.
D: Nonsense mutations occurring in the sequences encoding amino acids near the N terminus of the protein.
E: Frameshift mutations occurring in the sequences encoding amino acids near the N terminus of the protein.
G: Frameshift mutations occurring in the sequences encoding amino acids near the C terminus of the protein.
As these mutations have the potential to cause early termination of the protein or disrupt the active site, which would lead to non-functional protein. Proteins are important biomolecules that have many different jobs in the body, so this would be very bad for the organism.
So, the correct answers are A, C, D, E, and G.
Learn more about mutations.
https://brainly.com/question/30514140
#SPJ11
nurture refers to: nurture refers to: genes hormones any environmental stimulus any biological trait
Answers
Nurture refers to any environmental stimulus of gene hormones by any biological traits.
A class of signaling molecules known as hormones are found in multicellular organisms and are transferred to distant organs through complex biological mechanisms in order to regulate physiology and behavior. The Greek participle v, which meaning "setting in motion," is the word's origin. Hormones are necessary for the healthy development of animals, plants, and fungus. Due to the broad definition of a hormone, many different types of molecules can be classified as hormones (as a signaling molecule that exerts its effects far from its place of creation). Prostaglandins and thromboxanes are examples of eicosanoids. Oestrogen and brassinosteroid are examples of steroids. Epinephrine and auxin are examples of amino acid derivatives (such as insulin and CLE peptides). Hormones are the primary means through which organs and tissues communicate. Invertebrates use hormones to control a variety of physiological and behavioral processes, such as digestion, metabolism, respiration, sensory perception, sleep, excretion, lactation, stress induction, growth and development, movement, and mood swings. Almost every phase of plant development, from germination to senescence, is regulated by hormones.
To know more about hormones please refer: https://brainly.com/question/29757316
#SPJ4
PLZZZZ HElppp
pLZZZZZ
Answers
Answer:
B. Double replacement reaction
Explanation:
A double displacement reaction is a type of reaction where 2 reactants exchange parts to form two new compounds.
PLEASE HELP ASAP
1. What do you think the DNA on a banana will look like?
Answers
Answer:
Nothing you won't be able to see it. It is too small.
Explanation:
What kind of waves are present during an earthquake?
Answers
Answer:
Seismic Waves (S-Waves) and Primary Waves (P-Waves)
Explanation:
The basic objective of the layout decision is to __________. conform to manager preferences arrange activities in a line according to the sequence of operations needed minimize the number of nonadjacent loads ensure a smooth flow of work, material, people, and information through the system
Answers
The basic objective of the layout decision is to ensure a smooth flow of work, material, people, and information through the system.
This involves strategically arranging activities in a way that minimizes the number of nonadjacent loads and conforms to manager preferences, but ultimately the goal is to create an efficient and effective layout that allows for optimal productivity and workflow. Achieving this requires careful consideration of the sequence of operations needed. The basic objective of the layout decision is to ensure a smooth flow of work, material, people, and information through the system. This is achieved by organizing activities in an efficient manner, minimizing nonadjacent loads, and considering the sequence of operations required. While manager preferences may play a role, the main focus is on optimizing workflow and overall efficiency.
To know more about workflow visit:
https://brainly.com/question/31601855
#SPJ11
The _______ is responsible for maintaining homeostasis within any cell
Answer: Cell Membrane
Answers
Answer:
cell membrane
Explanation:
The structure most responsible for maintaining cell homeostasis is the cell membrane.
Why would you answer your own question lol
Haemophilia is caused by an X-linked recessive gene. Two parents with the normal phenotype have a haemophiliac child. Use a genetic diagram to show how this is possible. (4 marks) (X"= = normal; X¹ =gene for haemophilia)
Answers
Which vessels supplies oxygenated blood to BOTH the left and right ventricles. Select all that apply.
Answers
The right and left coronary arteries supply oxygenated blood to both the left and right ventricles.In the human body, the right and left coronary arteries supply oxygenated blood to both the left and right ventricles.
The coronary arteries transport oxygenated blood to the heart muscle to help it function appropriately. The right and left coronary arteries emerge from the aorta above the cusps of the aortic valve, and the heart tissues are irrigated by their small arteries.The aorta is the main artery of the systemic circuit, which transports oxygenated blood from the left ventricle of the heart to all areas of the body. The coronary arteries are tiny branching arteries that emerge from the aorta just beyond the aortic valve. The coronary arteries distribute oxygen-rich blood to the heart's own tissues.
learn more about coronary arteries
https://brainly.com/question/933912
#SPJ11
g what is reward-prediction error, and how is it encoded by the firing of midbrain dopamine neurons?
Answers
When the reward is anticipated, the response to the reward itself vanishes. But the dopamine neurons react more strongly if the reward exceeds expectations. In contrast, if the incentive is absent or less than expected, their activity declines.
Why is there a reward prediction inaccuracy in the brain?One idea in reinforcement learning is that you may adjust your estimate of the value of an action by using the inaccuracy in your forecast.
Considering that the brain may wish to regulate short- and long-term fluctuations in the value assessments of an activity independently.
This lends more credence to the idea that the midbrain dopamine neurons contain a reward prediction error signal that may be exploited to drive.
learn more about dopamine neurons refer
https://brainly.com/question/24803971
#SPJ4
1) In cycle 1 and all subsequent cycles of the PCR reaction, one copy of each of the two original strands will be synthesized at the 3' end of the primer and up to the 5' end of the original strand. Write the sequence of the copies (C1 and C2) that are made of the chains O1 and O2.
(01) 3' T C G G C T A C A G C A G C A G A T G G T A C G T A 5'
(C1) 5' C C G A T _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ 3'
(O2) 5' A G C C G A T G T C G T C G T C T A C C A T G C A T 3'
(C2) 3' _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ A T G G T 5'
Answers
PCR uses O1 and O2 as templates for DNA synthesis. PCR cycles involve denaturation, annealing, and extension.
The first cycle denatures O1 and O2, splitting the double-stranded DNA into single strands. Primer 3' binds to template strand complementary sequences. We don't know the primer's 3' end sequence from the sequences. The primer starts DNA synthesis by binding to a specific area. DNA polymerase uses the original strands as templates to synthesize new strands during extension. 5'-to-3' synthesis occurs. Thus, each template strand's new copy will be synthesized from the primer's 3' end to the original strand's 5' end.
Let's complete the sequences:
(C1) 5' C C G A T G G T A C G T A _ _ _ 3'
(C2) 3' _ A T G G T 5'
C1 synthesizes O1 from its 3' primer end to its 5' end. C2's synthesis begins at O2's 3' primer end and continues to its 5' end.
We can't establish C1 and C2's exact sequences without the primer sequence. The primer sequence determines DNA synthesis nucleotide order.
To know more about DNA synthesis
https://brainly.com/question/30669006
#SPJ11
Yeast is a unicellular organism that undergoes fermentation, a type of anaerobic respiration, to convert sugar into alcohol and carbon dioxide. In an experiment testing yeast activity, Sakurapoured equal amounts of warm water into two bowls. She added 1 teaspoon of sugar to only one bowl. Next, she added 1 teaspoon of yeast to each bowl. Within a few minutes, bubblesstarted to rise to the top of both bowls. Which of the following best explains why Sakura observed more bubbles produced in the bowl with sugar than in the bowl without sugar?A.Sugar provided the chemical energy for driving photosynthesis, resulting in greater production of oxygen bubbles.B.Sugar provided the light energy for driving cellular respiration, resulting in greater production of oxygen bubbles.C.Sugar provided the light energy for driving photosynthesis, resulting in greater production of carbon diaxide bubbles.D.Sugar provided the chemical energy for driving cellular respiration, resulting in greater production of carbon dioxide bubbles.
Answers
The correct answer is D. Sugar provided the chemical energy for driving cellular respiration, resulting in greater production of carbon dioxide bubbles. Sugar is a chemical used by heterotrophic organisms to perform cellular respiration, which ultimate product is carbon dioxide (CO2).
if you could tell me the answers it would be great, thank you!
Answers
Body
Vertebral arch
Processes
:: allows for muscle attachment
:: bears weight
:: holds spinal cord
Can somebody help me
Answers
Answer:
Body: Allows for muscle attachment
Vertebral arch: Holds spinal cord
Processes: Bears weight
The tension created by the contractile component of the muscle to be transmitted to the associated bones.
Vertebrae. The individual bones of the spine are the vertebrae. These are the building blocks of the spinal column. The vertebrae protect and support the spinal cord.
If a female Drosophila carries a bicoid mutation in one allele (bicoid+/-), what % of her eggs will be absent of bicoid mRNA? A) 100% B) 50% C) 25% D) 0%
Answers
50% of the female drosophila carries the by cold mutation in one allele in the absence of her eggs which is absent of bicoid mRNA so the correct option is B.
Bicoid mRNA is special type of runner RNA that's responsible for the conformation of the body axis of an embryo in the fruit cover species, Drosophila melanogaster. The Bicoid mRNA is also restated into protein, which binds to the DNA of the nexus and causes the expression of certain genes in the early embryo.
This results in the conformation of the body axis, as the Bicoid protein is expressed more at the anterior end of the embryo and lower at the posterior end.
To know more about Bicoid mRNA visit:
https://brainly.com/question/29745444
#SPJ4
in which does light travel fastest
Answers
Light waves do not need a medium in which to travel but sound waves do. Explain that unlike sound, light waves travel fastest through a vacuum and air, and slower through other materials such as glass or water.
Answer:
light travel faster in Vacuum and Air
What is the genotype and phenotype for A male hemophiliac with a woman pure for normal clotting.
Answers
Answer:
Male=XhY and woman=XHXH
Write a scientific explanation that explains why factors that are harmful to other plant species are beneficial for the Venus flytrap
Answers
The Venus flytrap is an insectivorous plant native to the Southeastern United States. It is well-known for its carnivorous behavior, capturing and digesting insects to supplement its nutrient intake.
The Venus flytrap is adapted to grow in nutrient-poor environments and, as a result, has developed unique characteristics to survive. In this scientific explanation, we will explore how factors that are harmful to other plant species are beneficial for the Venus flytrap.
The Venus flytrap has evolved to thrive in environments that are low in nitrogen and other essential nutrients. As a result, the plant has developed unique mechanisms to obtain the nutrients it needs. One of the ways the Venus flytrap obtains nitrogen is by capturing and digesting insects. The plant uses specialized leaves that have evolved to form a trap. When an insect lands on the leaves, the plant detects movement and snaps the trap shut, trapping the insect inside. The plant then secretes digestive enzymes that break down the insect's tissues and release the nitrogen and other essential nutrients that the plant needs.
Factors that are harmful to other plant species, such as nitrogen-deficient soil, are actually beneficial for the Venus flytrap. This is because the plant has evolved to obtain nutrients in a unique way, using its carnivorous behavior to supplement its nutrient intake. In environments that are low in nitrogen, the Venus flytrap has a competitive advantage over other plant species because it has a unique way of obtaining the nutrients it needs. As a result, the Venus flytrap is able to survive and thrive in environments that would be inhospitable to other plant species.
For more such questions on Venus flytrap, click on:
https://brainly.com/question/14148170
#SPJ11
What part of the plant is fertilized with pollen to produce seeds?.
Answers
The ovule is fertilized with pollen to produce seeds in most plants. When pollen reaches the ovule, fertilization occurs, resulting in the formation of seeds.
The ovule, located within the ovary of a flower, is the female reproductive structure that is fertilized by pollen. Pollen, which contains the plant's sperm cells, is the male reproductive structure. When pollen reaches the ovule, fertilization occurs, resulting in the formation of seeds. This process, known as pollination, can happen through various means, including wind, insects, birds, or other pollinators. Once fertilization takes place, the ovule develops into a seed, which contains the embryo and is surrounded by a protective seed coat. The seeds, when dispersed and provided with suitable conditions, can germinate and give rise to new plants. The process of seed production is crucial for the reproduction and survival of many plant species.
To learn more about, Fertilization, click here, https://brainly.com/question/31097363
#SPJ11
A scientist discovers a new molecule that is a long polymer that consists of a single strand of nucleotides. What type of molecule did the scientist most likely find?.
Answers
Most likely, the researcher discovered an RNA molecule. A single-stranded molecule with numerous nucleotides makes up RNA.
The single-stranded molecule known as ribonucleic acid (RNA) is made up of a lengthy chain of subsequent nucleotides.
The four main types of nucleotides found in RNA—Adenine, Uracil, Guanine, and Cytosine—each include a unique nitrogenous base.
Thymine nucleotides found in the DNA molecule are replaced with nitrogenous uracil bases in RNA.
Find out more about RNA in:
brainly.com/question/927510
#SPJ4
A molten, sticky rock thant forces its way through a crack in the Earth’s crust
A.Lava
B.Lahar
C.Magma
D.Scoria
Answers
Answer:
Magma.
Explanation:
This magma can push through holes or cracks in the crust, causing a volcanic eruption. When magma flows or erupts onto Earth's surface, it is called lava. Like solid rock, magma is a mixture of minerals.
One of the most important forces that led to the expansion of urban areas is the
O airplane
O automobile
O city bus
0 train
Answers
Answer:
The answer is train. And if not then its automobile.
Explanation:
Trains have been the first thing for transportation and for the trade company they helped you get place to place and they went a long way.
-Hope this helps!
- Justin :)
Name and put the stages of a lytic infection in order. Then describe each stage.
Answers
1. Attachment: The virus attaches to a host cell by binding to specific receptors on the surface of the cell.
2. Penetration: The virus injects its genetic material (DNA or RNA) into the host cell, typically by fusing with the cell membrane or by endocytosis.
3. Biosynthesis: The viral genetic material takes over the host cell's machinery, forcing it to produce viral components such as proteins and nucleic acids.
4. Maturation: The viral components are assembled into new virus particles within the host cell.
5. Release: The host cell is destroyed, releasing the newly formed virus particles to infect other cells.
In summary, the virus attaches to the host cell, injects its genetic material, takes over the host cell's machinery to produce viral components, assembles the viral components into new virus particles within the host cell, and then destroys the host cell to release the newly formed virus particles.
How does the article "how to find the next pandemic before it finds us" relate to biology
Answers
The article "How to Find the Next Pandemic Before It Finds Us" is likely to relate to biology in several ways:
Study of Infectious Diseases: Biology encompasses the study of infectious diseases, including the viruses and other pathogens responsible for pandemics. The article may discuss the biology of viruses, their transmission, and the mechanisms by which they cause disease.
Epidemiology and Public Health: Biology plays a crucial role in understanding and responding to pandemics from an epidemiological and public health perspective. The article may explore topics such as disease surveillance, outbreak investigation, and strategies for preventing and controlling the spread of infectious diseases.
Host-Pathogen Interactions: Understanding the biological interactions between pathogens and their host organisms is fundamental to studying pandemics. The article might delve into the molecular and cellular aspects of host-pathogen interactions, immune responses, and the factors that contribute to the emergence and spread of new infectious diseases.
Genomics and Molecular Biology: Advances in genomics and molecular biology have revolutionized our understanding of pathogens and their genetic makeup. The article may discuss how these fields contribute to identifying and monitoring potential pandemic threats by studying the genetic diversity and evolution of pathogens.
One Health Approach: The article might touch upon the concept of "One Health," which recognizes the interconnectedness of human, animal, and environmental health. Biology encompasses the study of zoonotic diseases (diseases that can spread between animals and humans), and the article could highlight the importance of monitoring and understanding zoonotic pathogens to prevent future pandemics.
Overall, the article is likely to explore the biological aspects of pandemics, focusing on the scientific understanding, surveillance, prevention, and response strategies related to infectious diseases.
learn more about biology here
https://brainly.com/question/28405832
#SPJ11