Answer:
Since the cell membrane is semi-permeable, the likelihood of substance L entering the cell attached to a large protein is lower than that of substance L free in the culture. Substance L enters the cell membrane through active transport, but the cell membrane may block the larger protein, thus blocking substance L, if it is attached to the large protein.
Explanation:
What is the second most abundant element in the human body?
Select one:
A. carbon
B. methane
C. water
D. oxygen
water
Explanation:
cuz after blood , water is the next thing that follows
Answer:carbon
Explanation: water is the first abundant element in the human body and carbon is the second
When proteins help transport molecules in and out of the cell, it is called
When proteins help transport molecules in and out of the cell, it is called active transport.
Answer: Facilitated diffusion is the diffusion of solutes through transport proteins in the plasma membrane. Channle proteins gated and carrier proteins are three types of transport proteins that are involved in facilitated diffusion.
what are the producers of in vitro fertilization
Answer:
IVF is the process of fertilization by extracting eggs, retrieving a sperm sample, and then manually combining an egg and sperm in a laboratory dish. The embryo(s) is then transferred to the uterus. Other forms of ART include gamete intrafallopian transfer (GIFT) and zygote intrafallopian transfer (ZIFT)
Explanation:
hope this helps, have a good day :-)
______ are also known as “local hormones”
Answer:
Autacoids or "autocoids" are biological factors (molecules) which act like local hormones
The table below shows the average yearly temp at Ute in four locations near an ocean.
Location A —> 31
Location B —> 23
Location C —> 18
Location D —> 48
Average yearly temperature in four locations near an ocean.
At which location is the density most likely to be the greatest
Location A
Location B
Location C
Location D
Answer:
C
Explanation:
Since plastic doesn't biodegrade in the oceans, what does the future hold? What can be done to make the future better?
Answer:
We need to take out the plastic and recycle
Explanation:
The future is scary if we don't act upon our actions. There are many people trying to restore the oceans and providing options for the average person. Some time ago I saw an advertisement for a search engine that if you use it they will take away plastic from the ocean. It was called OceanHero but there are others that do the same thing, such as: Okeano..etc. But another way is to prevent plastic from going into the ocean in the first place by limiting use of single use plastics and setting nets on pipes that lead to rivers to catch stray micro plastics. Another good idea is to ensure that we are not littering and following recycling rules. If we fail to save what we have left, ocean animals may only exist as skeletons and images in a museum.
Hope this Helps!
As plastic is not biodegradable it need to take out the plastic from oceans , other areas and recycle
what is biodegradable substance ?biodegradable substance is defined as the substance which has been generated from microorganisms like bacteria which can be broken down into the simplest compounds or components.
plastics are typically made as non-biodegradable substances as They can’t be broken down by natural method; it will persist in the environment for at least five hundred years and it can take up to one thousand years before plastic breaks down suggested by some scientist.
One of the way to prevent plastic from going into the ocean in the first place by limiting use of single use plastics and setting nets on pipes to catch stray micro plastics.
on the other hand Biodegradable plastics are a new big game-changer instead of regular polymers, the production of biopolymers reduces the release of CO2 to the air by 2/3.
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In the Calvin cycle, which of the following best describes the sources of the elements that combine to make sugar?
A. The carbon and oxygen from carbon dioxide combines with the hydrogen and oxygen in water taken in during the Calvin cycle to make sugar.
B. The carbon, oxygen, and hydrogen from stored sugars are reprocessed during photosynthesis to make new sugar molecules.
C. The carbon and oxygen from carbon dioxide combine with the hydrogen taken from water during the light-dependent reactions to make sugars.
D. The carbon that is taken from carbon dioxide during the light-dependent reactions combines with the hydrogen and oxygen in water to make sugars.
In the Calvin cycle, the carbon and oxygen from carbon dioxide combine with the hydrogen taken from water during light-dependent reactions to make sugars. The correct option is C.
What is a Calvin cycle?The Calvin cycle, also known as the C3 cycle, is a series of chemical processes used by plants to convert carbon dioxide and other chemicals into glucose.
RuBP is a straightforward five-carbon molecule that receives carbon from the atmosphere through the Calvin cycle processes. These processes utilize the NADPH and ATP created during the light reactions as a source of chemical energy. Glucose is the Calvin cycle's end result.
Therefore, the correct option is C. The carbon and oxygen from carbon dioxide combine with the hydrogen taken from water during the light-dependent reactions to make sugars.
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Which genotype represents a female carrier?
XHXh
XHY
XHXH
Answer:
option one is the answer. XHXh
Answer:
XHXH
Explanation:
What percent will have spots ?
25 %
0 %
50
Tim observed two local habitats. He counted the number of different kinds of plants and animals in each habitat. He recorded his data in a table. Look at the data. Then, answer the question.
Park Street
Different kinds of plants 61 18
Different kinds of animals 32 5
What might cause the differences in diversity between these habitats?
A. The park is smaller than the street.
B. The park has more adaptations than the street.
C. The park meets the basic needs of more living things than the street.
D. The park supports living things in water. The street supports living things on land.
Answer:
I think it is C
Explanation:
The street doesn't have all the resources a park does for animals to thrive.
Answer:
the answer is c because
Explanation:
the park and animal space is a diffrance
How do you decide whether a restaurant is sustainable or not?
Grizzly bears are top carnivores in some North American ecosystems. What do you think might happen to a community of organisms if grizzly bears suddenly became extinct?
Answer:
There would be an increase of the population of the prey that the Grizzly bears eat
Explanation:
The diagram shows a series of codons in an mRNA molecule before and after a genetic mutation. The mutation has caused an
adenine nucleotide base, rather than uracil, to be used to assemble a protein Despite the change, the sequence of amino acids in
the protein has not changed. Which term best classifies the genetic mutation?
What organ receives oxygen First during each circulatory cycle
How are the blunt and sharp pipettes
used in the cloning process?
(please answer in simple words i don't even understand the question)
Answer:
During the process of the type of cloning known as Somatic Cell Nuclear Transfer (SCNT), once the nucleus is removed from the egg cell, blunt and sharp pipette both are used. The purpose of the blunt pipette is to hold the egg cell in position whereas the sharp pipette penetrates the cell to take the nucleus out by sucking it - a process known as "enucleation". This nucleus is discarded. Rather, this nucleus is replaced by a nucleus taken out from a somatic cell (same way as described before) of the same organism.
Hope that answers the question, have a great day!
What is the purpose of the part of the male reproductive system that is
highlighted below?
Answer:
B
Explanation:
Transfers sperm cells to the urethra
Answer:
Transfers sperm cells to the urethra
Explanation:
A P E X
what are four things that are necessary for selective breeding to occur successfully?
Answer:
There are four things that are required: variation, inheritance, selection, and time. Variations are differences that exist among individuals.
what would happen if a new predator was introduced into the ecosystem that only ate mice ? Would the mouse population be lowered ?What else would happen because of this
Answer:
The mice population would be lowered, and that predator could be a prey to other predators in that environment.
Explanation:
The introduction of new predator has both positive as well as negative effects on the ecosystem and environment.
What happen when the predator in introduced in an ecosystem?If a new predator was introduced into the ecosystem that only ate mice so this results in the reduction of population of mice which leads to the disturbance of the ecosystem.
So we can conclude that introduction of new predator has both positive as well as negative effects on the ecosystem and environment.
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What is an application of DNA technology in medicine?
Answer: CRISPR TECHNOLOGY!!!
CRISPR is a new kind of technology that effectively writes out an entire genome, and helps us edit it as well. This kind of technology can be applied in genetic diseases; it can help us find a correlation between different errors in our genome that cause genetic diseases like Parkingson's, Huntington's, or sickle-cell anemia, and eradicate the errors in the genetic sequence. This could change the way we look at diseases and even cancer, since some forms of cancer can be connected with genetic errors and hereditary patterns.
The p53 protein is a transcription factor that regulates a cell's progression through the cell cycle after DNA is damaged by ultraviolet ( UV ) radiation. The p53 pathway is shown in Figure 1.
Please answer this question! I will give brainliest!
Please note: p53 regulating image is for the entire problem, whereas part C image is only for part C.
(a) A skin cell completes one round of the cell cycle. Describe the products.
(b) Based on Figure 1, explain how p53 regulates the cell cycle in the presence of damaged DNA .
(c) Draw an X on the template in the space provided for your response to indicate the phase during which the replication of damaged DNA would occur.
(d) Based on Figure 1, explain how a mutation to p53 may lead to an increased risk of cancer.
Answer:
(a) Since skin cells undergo the process of mitosis, the product of one cell cycle is 2 identical daughter cells.
(b) The levels of p53 protein in the cell will rise in response to DNA damage. This will stop the cycle at one point to give time to the repair machinery to regain stability. As can be seen in the figure, CDK inhibitors have been produced which are responsible for halting the cell cycle.
(c) The S phase (synthesis phase) is when replication of damaged DNA would occur.
(d) p53 responds in one of 3 ways to an event of DNA damage: arresting the cell-cycle, apoptosis (programmed cell death), or repairing the DNA. If there has been a mutation in p53, neither of the three way would take place to prevent more copies of damaged DNA being made. A mutated p53 protein would no longer be able to suppress tumors.
Hope that answers the question, have a great day!
The cell cycle is the process in which a cell undergoes four phases of division to give rise to daughter cells.
(a) The skin cell is a type of somatic cell, which undergoes mitotic division. The products of the cell cycle will be two identical daughter cells.
(b) p53 is a transcription factor, which will halt the replication if any error occurs. CDK inhibitors are produced in the cycle, which regains stability and activates the repair mechanism.
(c) The synthesis phase or S phase of the cell cycle is the site where replication of the DNA occurs. It takes place after the G1 phase.
(d) p53 transcription factor can arrest the cell cycle, cause apoptosis, and repair the cell damage. The mutation in the p53 gene can work in any fashion to prevent more damaged copies of the DNA. The mutation in p53 will lead to tumors.
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What is complementary base pairing? Explain why complementary base pairing is necessary to maintain the double helix shape of the DNA molecule.
Answer:
A complimentary base pairing is how adenine can only bond with thymine and how guanine and cytosine through hydrogen bonding. It is necessary to maintain the double helix shape. Because it is opposite, that is why the DNA is that shape. It is anti parallel due to the Complementary base pairing.
Adenine can only bond with thymine and guanine with cytosine via hydrogen bonding. It's important to keep the double helix shape. Complementary base pairing causes antiparallelism.
Why complementary base pairing is necessary?Base pairs linked to a sugar-phosphate backbone form the double helix structure of DNA.
DNA is composed of four nitrogenous bases: thymine, adenine, guanine, and cytosine. Guanine and cytosine are linked by three hydrogen bonds, while adenine and thymine are linked by just two. The term for this is complimentary base pairing.
Complementary base pairing is critical for the formation of the helical helix of DNA because it permits the base pairs to be organized in the most energetically favorable manner. It is also essential for replication since it permits semiconservative replication.
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Which types of marine life will be hurt by increasing carbon dioxide levels?
1.Algae
2.Clams and Snails
3.Coral
4.All of the above
Clams and snails
They need Oxygen
Answer:
i think its 4
Which pairs are MOST closely related?
A) dog and tapeworm
B) mushroom and tree
C) amoeba and bacteria
D) tapeworm and bacteria
Answer:
C) amoeba and bacteria
Explanation:
Both are single celled organisms
The pairs that should be mostly close related are option c .amoeba and bacteria.
Relationship of amoeba and bacteria:Amoebas should be the same as bacteria. They both are considered to be the group of single-cell microbes. However, the amoebas should have the main difference i.e. they are eukaryotes it means in the DNA that should be contained in a structure which we called the nucleus.
Hence, option c is correct.
And, the rest of the options are incorrect.
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Define and give 2 examples of haploid cells
Answer:
Haploid cells contain a single set of chromosomes. Gametes are an example of haploid cells produced as a result of meiosis. Examples of gametes are the male and female reproductive cells, the sperm and egg cell respectively.
Explanation:
When iron in rocks reacts with oxygen, it
forms iron oxide (rust), which weakens
rocks and causes them to break apart.
This is an example of...
Answer:
Oxidation
Explanation:
In plants, asexual reproduction is most likely to occur through the:
Answer:
Roots
Explanation:
The cells split into two of the same copy of itself (unless a bug has occurred, in which case a malform will occur), and the two copies are known as the offspring. In this case, only one pair of genes is inherited, and will continue to be the pair that is passed down (if no malform occurs).
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Make a
claim about whether producers or primary
consumers would have a larger population
in an ecosystem. Support your claim with
evidence, and explain your reasoning.
Answer:
The producers have a larger population, The population gets smaller every level by 10%.
Explanation:
Dimples are dominant to no dimples. Determine the phenotype probability for the offspring of a
heterozygous female and a homozygous dominant male.
O 50% dimples, 50% no dimples
75% dimples, 25% no dimples
0 100% dimples, 0% no dimples
25% dimples, 75% no dimples
Answer:
B
Explanation:
What is the term for a feature that allows an organism to survive better in its environment?
Answer:
adaption
Explanation:
Question 10 )
The distance benveen the Earth and the Sun is quite large. Which numbers are correct distances between them?
Check all that apply
Answer:
the distance is around 94.23 million mi
Explanation:
Answer:
B and D
Explanation:
