13. If the test tube below were allowed to stand at room temperature for several hours, what process would
be occurring in the test tube?
A. oxidative respiration
B. fermentation
C. photosynthesis
Bulb
D. evolution
-Gas bubbles
Water
14. The gas released in this investigation is
A. carbon dioxide
B. hydrogen
C. nitrogen
D. oxygen
Water plant
Answers
And
B hydrogen
Related Questions
What kind of bond does water have
A. positive
B. negative
C. Covalent
D. Non-polar
Answers
(................)
Answer:
C. Covalent
I hope this helps!
which of the following is true regarding the binding of oxygen to hemoglobin? binding of the first two oxygen molecules to hb results in its relaxed state hemoglobin binds less tightly to oxygen in lungs than in muscles hemoglobin has the highest affinity for the first oxygen molecule. all of these statements are true.
Answers
The statement that is true regarding the binding of oxygen to hemoglobin is binding of the first two oxygen molecules to hb results in its relaxed state.
The binding of oxygen to hemoglobin (Hb) is a crucial process that enables the transport of oxygen from the lungs to the body's various tissues. Hemoglobin is a protein that binds to oxygen molecules in the lungs and releases them in the body's tissues. The oxygen-binding capacity of hemoglobin is influenced by several factors, including temperature, pH, carbon dioxide levels, and 2,3-bisphosphoglycerate (2,3-BPG).The relaxed state of Hb is also known as the R-state, which has a higher affinity for oxygen than the tense state (T-state).
Hb's transition from the T-state to the R-state occurs as oxygen molecules bind to the heme groups of the protein's four subunits. When the first oxygen molecule binds to a heme group, Hb undergoes a conformational change that increases its affinity for the second and third oxygen molecules. However, the fourth oxygen molecule has a lower affinity for Hb than the first three molecules. Oxygen transport is facilitated by the difference in oxygen concentration between the lungs and body tissues, which generates a concentration gradient that favors oxygen binding to Hb in the lungs and oxygen release from Hb in the tissues.
In the lungs, Hb has a higher affinity for oxygen, which enables it to bind to oxygen molecules efficiently. Conversely, in the tissues, where oxygen concentration is lower, Hb has a lower affinity for oxygen, which facilitates the release of oxygen to the cells.All of the statements given in the options are not true. The correct statement regarding the binding of oxygen to hemoglobin is that binding of the first two oxygen molecules to hb results in its relaxed state.
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Dna is found coiled up into chromosomes within what cellular structure?.
Answers
Answer:
Your answer is the nucleus!
Explanation:
In the nucleus of each cell, the DNA molecule is packaged into thread-like structures called chromosomes. Each chromosome is made up of DNA tightly coiled many times around proteins called histones that support its structure. DNA and histone proteins are packaged into structures called chromosomes.
Hope this answers your question!!!
Both light and sound travel in waves. Use the terms in the word box to label the parts of a wave.
amplitude
wavelength
crest
trough
equilibrium
3
5
Answers
Answer:ok so um im doing this rn in middle school 8th grade and the #6 wavelength
#7 trought
#8 crest
#9 amplitude
#10 equilibrium
Which is most directly responsible for water’s unique properties
Answers
It's Hydrogen Bonds
Explanation:
Water has some unusual properties due to its hydrogen bonds. One property is cohesion, the tendency for water molecules to stick together. The cohesive forces between water molecules are responsible for the phenomenon known as surface tension.
what process uses oxygen and carbohydrates to release chemical energy for the use of cells? responses
Answers
Cellular respiration uses oxygen and carbohydrates to release chemical energy for the use of cells
In the process of breaking down glucose during cellular respiration, oxygen is consumed, which also produces heat and chemical energy. This process produces water and carbon dioxide. During aerobic cellular respiration, glucose and oxygen combine to create ATP, which the cell can utilise. As byproducts, carbon dioxide and water are produced. For aerobic cellular respiration, the general equation is: During cellular respiration, the reaction between glucose and oxygen produces ATP. The aerobic process known as cellular respiration is how living cells break down glucose molecules, release energy, and create ATP molecules. In general, glucose and oxygen react in this three-stage process to produce carbon dioxide and water.
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Can someone plz help
Answers
A. The passage of genetic instructions for one generation to the next
In rod cells of the vertebrate eye, when retinal has not been activated by light, _____.
A. phosphodiesterase enzymes are active
B. sodium channels in the rod's plasma membrane are open
C. cyclic guanosine monophosphate (cGMP) levels are low
D. sodium channels in the rod's plasma membrane are closed
Answers
In rod cells of the vertebrate eye, when retinal has not been activated by light, sodium channels in the rod's plasma membrane are open. This allows sodium ions to flow into the cell, maintaining the resting membrane potential. So, the correct answer is option B.
Phosphodiesterase enzymes being active is not the case when retinal has not been activated by light in rod cells. Phosphodiesterase enzymes are involved in the process of signal termination and are activated upon light stimulation.
Cyclic guanosine monophosphate (cGMP) levels are high in the dark-adapted state, not low. cGMP is responsible for keeping sodium channels open and maintaining the cell's depolarized state.
When retina has not been activated by light, sodium channels in the rod's plasma membrane are open, allowing the influx of sodium ions.
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Which of the following is caused by bad genes? *
Carcinoma
herpes
athlete's foot
vitaligo
bubonic plague
Answers
researchers studying tissues of diseased marine mammals have identified what appear to be a viral particles by electron microscopy. describe three methods you might use to attemp to culture this virus for further study
Answers
To attempt to culture the virus identified through electron microscopy, there are several methods that researchers may use. Here are three potential methods: Cell Culture, Animal Models and Metagenomic Sequencing.
1. Cell Culture - One common method to culture viruses is to grow them in cell culture. In this method, researchers take a sample of the diseased tissue and try to infect cells in vitro with the virus. If successful, the virus will infect and replicate within the cells, allowing researchers to study its behavior and characteristics more closely. Different types of cells may be used depending on the virus being studied and its tropism (ability to infect specific cells).
2. Animal Models - Another method that researchers may use to culture viruses is to infect live animals with the virus. In this method, researchers would expose a healthy animal to the virus and monitor the progression of the disease. This method is often used to study viruses that do not grow well in cell culture or to better understand the pathogenesis of the virus in a living organism.
3. Metagenomic Sequencing - Finally, researchers may use metagenomic sequencing to study the viral particles identified by electron microscopy. This method involves extracting genetic material from the sample and sequencing it to identify any viral sequences present. This can help researchers identify the virus and learn more about its genetic makeup and potential for further study.
Overall, there are several methods that researchers may use to culture a virus identified through electron microscopy, including cell culture, animal models, and metagenomic sequencing.
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which is the noble gas H, O or N.
Answers
Answer:
None of the above
Explanation:
The noble gasses are helium (He), neon (Ne), argon (Ar), krypton (Kr), xenon (Xe), and radon (Rn)
Answer:
No answer listed
Explanation:
The Nobel Gases are in the last group on the periodic table (Group 18). They consist of Helium, Neon, Argon, Krypton Xenon, and Radon.
The elements you listed were Hydrogen, Oxygen, and Nitrogen. None of them are in group 18. You might have meant Helium (He) or Neon (Ne).
The major functions of proteins in cells do not include:.
Answers
The major functions of proteins in cells do not include the following: storing genetic information.
What is the role of protein in cells?The major functions of proteins in cells are:Enzymes, which catalyze all of the reactions of metabolism and catabolism. Transport proteins, which assist in the movement of substances across membranes.Structural proteins, which provide support to cells and tissues.Receptors, which allow cells to communicate with each other by detecting and responding to chemical signals.
Regulators of gene expression, which turn genes on and off and regulate the rate of protein synthesis.Some additional functions of proteins in cells are: signaling molecules, immune system defense, and energy storage.
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Water pollution review …
1. When neighborhood resident noticed a large number of dead fish in a local creek they traced the problem to a nearby gas station. It turned out that a gasoline tank has developed a leak this is an example of
A. Point-source, B. nonpoint -source pollution, C. thermal pollution, D. groundwater pollution.
2. Which of the following is a point-source? A. An abandoned mine, B. Runoff city streets, C. Precipitation containing air pollution, D. Runoff from farms.
3. What would the drawbacks be to a wastewater plant connected to a water treatments facility?
A. Increased energy usage, B. Decks matter in the water, C. There are no real drawbacks, D. An overabundance of wastewater would get pumped directly into our water resources .
Answers
2. D) Runoff from farms
3. D) Abundance of wastewater ..
Are Turkey Vultures predators or scavengers
Answers
Answer: Turkey vultures are scavengers!
Explanation: Turkey vultures, instead of hunting, will look around for anything that has already been killed so they may eat it without hassle!
Hope this helps, if not, comment below please!!!
Answer:
Scavengers!
Explanation:
Vultures seek out dead and decaying animals as their main source of nutrients, and tend to only consume animals that are already killed.
advancements in the complexity of which body systems separate the vertebrates from other craniates?
Answers
Advancements in the complexity of several body systems separate vertebrates from other craniates. These advancements are key features that contribute to the unique characteristics and success of vertebrates.
The following body systems demonstrate significant advancements in vertebrates:
Skeletal System: Vertebrates possess an internal skeleton made of bone or cartilage, providing structural support and protection for vital organs. This skeletal system allows for greater mobility, protection of the nervous system, and efficient muscle attachment, enabling a wide range of movement and locomotion.
Nervous System: Vertebrates exhibit a highly developed nervous system, including a complex brain and spinal cord. This advanced nervous system enables sophisticated sensory perception, integration of information, and coordination of complex behaviors. Vertebrates have evolved specialized sense organs, such as eyes and ears, which provide enhanced sensory input and enable efficient processing of sensory information.
Circulatory System: Vertebrates possess a closed circulatory system with a multi-chambered heart. This system ensures efficient transport of oxygen, nutrients, hormones, and immune cells throughout the body. The closed circulatory system allows for higher blood pressure and more precise control of blood flow to various organs and tissues, increasing metabolic efficiency.
Respiratory System: Vertebrates have well-developed respiratory systems that include lungs or gills, allowing efficient exchange of oxygen and carbon dioxide. This adaptation facilitates the extraction of oxygen from the environment and the removal of waste gases, enabling vertebrates to inhabit diverse terrestrial and aquatic environments.
Digestive System: Vertebrates possess a specialized digestive system with various organs, including a well-differentiated alimentary canal, liver, and pancreas. This system allows for the efficient breakdown of food into nutrients, their absorption, and the elimination of waste. Vertebrates have evolved diverse feeding strategies, ranging from herbivory to carnivory, which necessitate specialized adaptations in their digestive systems.
Reproductive System: Vertebrates exhibit diverse reproductive strategies, including internal fertilization and viviparity (live birth). Vertebrates have developed complex reproductive organs and mechanisms to ensure successful reproduction, including the production of gametes, hormonal regulation of reproductive cycles, and various mating behaviors.
These advancements in the complexity of the skeletal, nervous, circulatory, respiratory, digestive, and reproductive systems distinguish vertebrates from other craniates. They have contributed to the adaptive radiation and evolutionary success of vertebrates, enabling them to occupy diverse habitats and ecological niches. The increased complexity of these systems has allowed vertebrates to exhibit a remarkable diversity of body forms, behaviors, and physiological adaptations.
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The tendency of water molecules to stay close to each other as a result of hydrogen bonding causes all of the following except
the surface tension that allows leaves to float on water
the movement of water up the vessels in a tree trunk
the inability of ionic compounds to dissolve in water
the adhesion of water droplets to the side of a straw
Which of the following effects is produced by the cohesive properties of water molecules?
Lakes do not freeze solid in winter, even at below freezing temperatures.
Evaporation of water from a leaf's surface lowers the temperature of the leaf.
Water flows upward from a plant's roots to the leaves in narrow tubes.
Cells resist temperature changes, even as their internal processes give off heat.
Answers
Answer:
The tendency of water molecules to stay close to each other as a result of hydrogen bonding causes all of the following EXCEPT - the surface tension that allows leaves to float on water -the movement of water up the vessels in a tree trunk -the inability of ionic compounds to dissolve in water -the adhesion of water
Explanation: P.S. I love your name hehe. Is he your favorite character??
Winnie, Daud and Parvin collected a total of 9000
stickers.Winnie collected 3274 stickers.She collected 931
fewer stickers than Daud.
a.How many stickers did Daud collect?
b.How many stickers did Parvin collect?
Answers
ANSWER:
a.) 4, 205 stickers
b.) 1, 521 stickers
Which term is credited to Hooke's scientific research?
Answers
Answer:
Cell
Explanation:
which of the strands below is NOT a strand of rna?
Answers
\(\qquad \qquad \huge \pink {\sf{☁Answer☁}} \\ \\ \)
OptionB. ATGCTTGCAGTCCATGAC✓
It is the only strand that includes "T" or thymine which is only found in DNA .\(\purple{\rule{15mm}{2.9pt}} \red{\rule18mm{2.5pt}} \orange{ \rule18mm{2.5pt}}\)
\(\sf{\:мѕнαcкεя\: ♪...}\)
How does a cell take over the cell?
Answers
Answer:
it depend on what it s like a virus
Explanation:
Viruses are perfect parasites. It has been known for decades that once a virus gets inside a cell, it hijacks the cellular processes to produce virally encoded protein that will replicate the virus’s genetic material.
Translate the term hepatosplenomegaly as literally as possible? liver spleen decrease liver spleen rupture liver spleen condition liver spleen enlargement
Answers
If the liver and spleen become too enlarged, they can cause pain, discomfort, and other symptoms that can affect your quality of life. Treatment will depend on the underlying cause of the condition.
The literal meaning of the term hepatosplenomegaly is "liver spleen enlargement.
"What is hepatosplenomegaly?
Hepatosplenomegaly is a condition in which both the liver and spleen are swollen. It's usually a symptom of a more serious underlying problem, such as liver disease, cancer, or an infection.
The liver is a crucial organ in the body. It performs a variety of essential functions, such as filtering toxins and processing nutrients.
The spleen, on the other hand, acts as a filter for the blood and aids in the immune response. When the liver and spleen are both enlarged, it's usually a sign that something is wrong.
In some cases, hepatosplenomegaly causes no symptoms and is discovered incidentally during a routine medical exam. However, if the liver and spleen become too enlarged, they can cause pain, discomfort, and other symptoms that can affect your quality of life. Treatment will depend on the underlying cause of the condition.
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In humans (2n = 46), mitosis results in _____ and meiosis results in _____.
A. 2 cells with 23 chromosomes; 4 cells with 46 chromosomes
B. 4 cells with 46 chromosomes; 2 cells with 23 chromosomes
C. 2 cells with 46 chromosomes; 4 cells with 23 chromosomes
D. 4 cells with 23 chromosomes; 2 cells with 46 chromosomes
Answers
In humans (2n = 46), mitosis results in 2 cells with 46 chromosomes and meiosis results in 4 cells with 23 chromosomes. Hence, the correct option is (c).
The division of the nucleus into two identical nuclei is known as mitosis. Chromosome numbers are maintained throughout mitosis, with each of the daughter cells receiving the same number of chromosomes as the parent cell. Mitosis is called equational division because each of the two daughter cells formed, get the same number of chromosomes as the parent. Mitosis is important for multicellular organisms because it provides new cells for growth and for replacement of worn-out cells. Many single-celled organisms rely on mitosis as their primary means of asexual reproduction. Meiosis is a type of cell division that reduces the number of chromosomes in a cell by half, from 2n (a diploid number) to n (a haploid number). Gametes are produced as a result of meiosis. The chromosomes are divided equally between the daughter cells during meiosis, resulting in the production of 4 cells with 23 chromosomes. Meiosis is called "reduction division" because it reduces the number of chromosomes to half the normal number so that, when fusion of sperm and egg occurs, baby will have the correct number. Meiosis is important because it ensures that all organisms produced via sexual reproduction contain the correct number of chromosomes. Meiosis also produces genetic variation by way of the process of recombination.
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listening is the complex process of receiving constructing meaning from and
Answers
Listening can be defined as the process of receiving, constructing meaning from, and responding to spoken or nonverbal messages. Effective listening consists of several, interrelated steps.
Explanation
The first step in the listening process is attention, the act of selectively focusing on some stimuli while screening out others.
A biomolecule with a large, complex set of chains composed of alternating subunits called nucleotides has which of these functions in the cell?
Answers
Answer:
Storing genetic information
Explanation:
in the induced fit model, when a reactant temporarily binds to the active site of an enzyme, the enzyme __________.
Answers
Answer:
breaks down the reactant
Explanation:
Would all of the reptiles in an area be considered a population? EXPLAIN
Answers
The study of a living being is called biology.
The correct answer to the question is yes.
What is the population?Population typically refers to the number of people in a single area, whether it be a city or town, region, country, continent, or the world.
According to the question, the reptiles living in an area is considered a reptile.
Hence, the correct answer is yes.
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What does the word
photosynthesis mean?
Light + energy
Energy + mass
Light + put together
Energy + sugar
Answers
Answer:
light + energy
Explanation:
photo means light and synthesis means energy
Answer:
(a) or (d)
Explanation:
i know the root "photo" means light
Complete the following sentences. Then, place the steps of translation in order based on when they occur. Responses may be used more than once.
rRNA
elongation
amino acids
ribosomal subunits
transcription
start
IRNA
cytoplasm
initiation
synthesized
stop
termination
modified
rough ER
nucleus
Drag the text blocks below into their correct order.
During the process of ___________, polypeptide synthesis takes place.
________carries ________ to mRNA.
Once a ribosome reaches a ________ codon, _______ occurs and the ________ break away from the mRNA.
Some ribosomes attach to the ________ where polypeptides enter to be ________.
During the process of _________, anticodon-codon complementary base pairing begins as the _________ join together at a _______ codon.
In the __________, it becomes associated with ribosomes,
constructed out of __________.
After _______, mRNA leaves the ________ and enters the ________
of the cell.
Answers
During the process of translation, polypeptide synthesis takes place as amino acids are carried to mRNA by tRNA.
What are the steps of translation and their order?Translation is the process by which a polypeptide chain is synthesized from mRNA, guided by the genetic code. The steps of translation occur in a specific order:
Transcription: In the nucleus, DNA is transcribed into mRNA, which carries the genetic information to the cytoplasm.
Ribosomal subunits: Ribosomal subunits are synthesized in the nucleolus and then enter the cytoplasm. They join together at a start codon to initiate translation.
Initiation: The small ribosomal subunit binds to the mRNA, and the start codon is recognized by the anticodon of the initiator tRNA. This marks the beginning of translation.
Elongation: Amino acids are brought to the ribosome by tRNA molecules, which carry specific anticodons that are complementary to the codons on the mRNA. Amino acids are added to the growing polypeptide chain through peptide bond formation.
Termination: Once a ribosome reaches a stop codon on the mRNA, termination occurs. The completed polypeptide chain is released, and the ribosome dissociates from the mRNA.
Modified polypeptide: The polypeptide chain may undergo modifications, such as folding, cleavage, or chemical modifications, to form the functional protein.
Rough ER association: In some cases, the newly synthesized polypeptide chain becomes associated with the rough endoplasmic reticulum (ER), where further processing, folding, and transport may occur.
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Environmental factors typically activate genes in a cell by causing the cell to --
A.produce identical daughter cells through mitosis
B.form haploid gamete cells through meiosis
C.fuse with another cell to increase the size of its genome
D.transcribe specific DNA segments to mRNA for translation
Answers
Environmental factors typically activate genes in a cell by causing the cell to transcribe specific DNA segments to mRNA for translation.
This interaction is an example of environmental factors affecting genetic expression. In these situations, the environment causes specific segments of DNA to be expressed, meaning they are transcribed to mRNA and subsequently used to form proteins.
Meanwhile, other parts of the genome remain or are forced to be silent. This can be a result of mutations or simple biochemical reactions between the environment and the genome.
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Answer:
Transcribe DNA to RNA
Prokaryotic and eukaryotic cells have many differences, but they also share some common features. Which of the following may be found in either type of cell? A. mitochondria B. cell walls C. Golgi bodies D. nuclei
Answers
Answer: The answer is option B. Cell Walls
Explanation: Prokaryotic cells are much smaller than eukaryotic cells, have no nucleus, and lack organelles. All prokaryotic cells are encased by a cell wall. In eukaryotes, vertebrates don't have a cell wall but plants do.