Explain how the VIH virus uses specific structures to enter the cell

Answers

Answer 1

Answer:

When HIV infects a cell, it first attaches to and fuses with the host cell. Then the virus uses the host cell's machinery to convert the viral RNA into DNA and replicate itself. The new copies of HIV then leave the host cell and move on to infect other cells.


Related Questions

Which structure of the intervertebral articulation gives the disc its resiliency and ability to absorb shock

Answers

Answer:

nucleus pulposus provides both flexibility and resilience to the intervertebral disc and the ability to absorb shock

Which statement provides the best description of the interphase portion of the cell cycle?.

Answers

Answer:

Which statement provides the best description of the interphase portion of the cell cycle? Interphase is a resting stage prior to cell division. During interphase, a cell is metabolically active.

Energy cannot be produced by fungi and heterotrophic organisms

Answers

Answer:

No they cannot

Explanation:

Fungi, which are also heterotrophs as well as other heterotrophic organisms cannot produce their own energy for their own function because they do no make their own food. That is they do not have chloroplasts and therefore obtain energy from autotrophs ( organisms that make their own food for energy)

Starlings produce an average of five eggs in each clutch. If there are more than five, the parents cannot adequately feed the young. If there are fewer than five, predators may destroy the entire clutch. This is an example of.

Answers

The the behavior observed in starlings where they produce an average of five eggs in each clutch is an example of behavioral adaptation.

What are adaptation?

Adaptation refers to the special features or structures possessed by organisms which enhances their chances of survival in their environment.

The adaptation can either be behavioral or structural.

In the case of the starlings, due to environmental pressures, they have learned to lay an average of five eggs.

Therefore, the behavior observed in starlings is an example of behavioral adaptation.

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What are the different systems of classification of organisms

Answers

Answer:

Kingdom, phylum, class, order, family, genus, and species.

Explanation:

The science of classifying living things is called taxonomy. Linnaeus introduced the classification system that forms the basis of modern classification. Taxa in the Linnaean system include the kingdom, phylum, class, order, family, genus, and species. Linnaeus also developed binomial nomenclature for naming species.

Which part of a plant are used to attract birds and insects called

Answers

Answer:

Nectar

Explanation:

The part of a plant that is used to attract birds and insects is called Petals. Sometimes, nectar is also used for the same function.

What do you mean by Plant?

A Plant may be defined as a living thing that grows in the earth and has a stem, leaves, and roots. They are the autotrophs that synthesize their own food through the process of the photosynthesis.

Petals are multicolored leaf-like structures that encircle the male and female reproductive organs of the plant. Because of its colorful nature, it attracts a variety of birds and insects.

Nectar is a sweet substance that attracts insects or birds for the purpose of pollinating the flower.

Therefore, the part of a plant that is used to attract birds and insects is called the Petals. Sometimes, nectar is also used for the same function.

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PLEASE VERY SIMPLE QUESTION: The graph above shows the effect of sew biological oxygen demand (BOD) and dissolved oxygen (DO) in a flowing stream. The smallest fish populations will most likely be found at point...​

Answers

Answer:

A

Explanation:

closer to the sewage spill- less fish there will be because sewage is poisonous and at A the BOD is relatively high

hope I'm right and this helps goodluck.

Describe Lynn Margulis' three observations (evidence) which support the endosymbiotic
theory.

Answers

There is quite a lot, but the fact that both mitochondria and chloroplasts have their own circular DNAis what I would call "key" evidence. That is, these organelles are not "manufactured" by the cell (i.e., there are no "genes for mitochondria" in eukaryote genomes): like their ancestral bacteria, they reproduce by binary fission.

4




Related questions (More answers below)

why are hooves more advantages for horses in the modern era

Answers

Answer:

just search it up on google

Answer:

Hooves are better equipped for environments with plains.

Explanation:

I just got this right on my quiz, hope this helps :)

The study of embryological similarities and differences among species is called _______.

Answers

Comparative embroyology

explanation:

Comparative embroyology is the study of the similarities and the difference.

Due to a genetic modification, a mouse has no horizontal cells in its retinas. What impact will this have on the mouse’s vision?

Answers

Answer:

Below

Explanation:

Horizontal cells are the laterally interconnecting neurons having cell bodies in the inner nuclear layer of the retina of vertebrate eyes. They help integrate and regulate the input from multiple photoreceptor cells. Without them you wouldn't be able to see color, which means the mouse won't process color.

Due to a genetic modification, a mouse has no horizontal cells in its retinas and it does not expresses the connexin26.

What is  horizontal cells?

The horizontal cells has receptive field with the neurobiotin and controlled by the electrical coupling.

Horizontal cells are the laterally interconnecting neurons having cell our bodies withinside the internal nuclear layer of the retina of vertebrate eyes. They assist combine and alter the enter from a couple of photoreceptor cells.

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Which mutation would allow the cell to divide when it should not and could possibly lead to cancer?.

Answers

Answer:

meiosis

mitosis

c cc ell division


8. Example Eight 14.3
The diagram below represents a cell.
2
Which organelle is the site where amino acids are synthesized into proteins?
A.1
B.2
C.3
D.4

Answers

The cell organelle which serves as the site of protein synthesis in the cell is the ribosomes.

What are cell organelles?

Cell organelles are membrane-bound structures whivh are found embedded within a cell cytoplasm and which perform specific functions for the cell.

Some cell organelles include:

mitochondria ribosomeslysosomesGolgi bodies

The ribosome is a cell organelle which functions as the site for protein synthesis in the cell.

Therefore, the site of protein synthesis in the cell is the ribosomes.

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Whould we want the human curve to look like the 1st bacteria population

Answers

Answer: No, because the bacterial population plummets once their resources are exhausted


Could blood on the clothes of a murder suspect be used to implicate him in the crime?

Answers

Answer:

yeah if the blood matches the victim then the suspect is gonna be taken in for custody and tried for murder

Explanation:

Answer:

yes blood on the clothes of a suspect can implicate him

true or false the lab partner working on the computer should put the bacterial filter and mouthpiece onto the respiratory transducer and then hand it to the subject

Answers

Answer:

No!

Explanation:

Safety precautions must be taken with this procedure. Such as, protective gear, bacteria should not be mixed with other substances!

Which of these organisms has a sac body plan, and radially symmetry?

Answers

Answer:

?

Explanation:

I'm gonna need a picture or some options because you question makes no sense

The organisms like Jellyfish, Corals, and sea anemones have a sac body plan, and radially symmetry.

What do you mean by Radial symmetry?

Radial symmetry may be defined as the symmetry in which the sides indicate correspondence or regularity of the parts around a central axis.

Apart from the above organisms, the member of the phylum Coelenterate which contains approximately 10,000 species also possesses the same body plan.

Therefore, the organisms like Jellyfish, Corals, and sea anemones have a sac body plan, and radially symmetry.

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What name is given to the specific location of a gene on a chromosome?

Answers

Answer: A locus is the specific physical location of a gene or other DNA sequence on a chromosome, like a genetic street address. The plural of locus is "loci".

The name which is given to the specific location of a gene on a chromosome is called Locus.

What do you mean by Chromosomes?

Chromosomes may be defined as a stringy structure of nucleic acids and protein located in the nucleus of most living cells, bearing genetic information in the form of genes.

Locus may be defined as a specific place on a chromosome that is occupied by an allele. It represents the physical site of a specific gene on a chromosome.

Therefore, the name which is given to the specific location of a gene on a chromosome is called Locus.

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Topic : Photosynthesis and Energy transfer in food chains
App : Teams Homework


Note : it’s ok if u can’t write an essay but can anyone please share their ideas so I can put it together

Answers

Introduction:The sun warms our seas,stirs our atmosphere,generates our weather patterns ,and gives energy to the growing green plants that provide the food and oxygen for life on Earth.Description:Primary producers use energy from the sun to produce their own food in the form of glucose ,and then primary producers are eaten by primary consumers who are in turn eaten by secondary consumers ,and so on,so that energy flows from one trophic level,or level of the food chain ,to the next .Energy decreases as it moves up trophic levels because energy is lost as metabolic Heat when the organisms from one trophic level are consumed by organisms from the next level,food chain can usually sustain no more than six energy transfers before all the energy is used.Explore:Note : This one's for you(◕ᴗ◕✿)Evaluate:Note: This one's for you

i hope it's helpful.

How to determine the chemical reaction of cellular respiration?

Answers

Answer:

C6 H12 O6+6O2-----6CO2+6H2O+ ATP

Chemical reactions of cellular respiration may be determined by where the respiration process undergoes. This is because cellular respiration may be of two types aerobic (in mitochondria), and anaerobic (in yeast and muscle cells).

What do you mean by Cellular respiration?

Cellular respiration may be defined as the strategy by which living organisms incorporate oxygen with glucose molecules, and discard as waste products, carbon dioxide, and water, apart from energy.

The general chemical reaction of the cellular respiration may be determined as :

[tex]C_6H_1_2O_6 +[/tex][tex]0_2[/tex] → [tex]CO_2 + H_2O +[/tex] ATP. (Aerobic cellular respiration).

Glucose → Pyruvate → Lactate + ATP (Anaerobic cellular respiration).

Therefore, chemical reactions of cellular respiration may be determined by where the respiration process undergoes.

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How did gravity affect the growth of the germinating corn seeds?

Answers

Answer:

see below

Explanation:

their roots respond positively, growing down, into the soil, and their stems respond negatively, growing upward, to reach the sunlight.

Gravity influenced the growth of germinating corn seeds by providing the directional cue for root growth and promoting proper orientation of the plant.

Gravity plays a crucial role in plant growth and development, particularly during the germination of seeds. When a germinating corn seed is placed in a gravitational field, gravity acts as a guidance mechanism for the growing seedling.

In response to gravity, the root of the germinating seed grows in a downward direction, a process known as gravitropism or geotropism. This downward growth of the root is called positive gravitropism. The root responds to the gravity stimulus by redistributing auxin, a plant hormone, towards the lower side of the root. This causes cells on the lower side of the root to elongate more than cells on the upper side, leading to downward growth. The downward growth of the root helps anchor the plant in the soil and facilitates water and nutrient absorption from the ground.

Simultaneously, gravity also influences the shoot of the germinating corn seed. The shoot exhibits negative gravitropism, where it grows upward against the force of gravity. This upward growth is counterbalanced by the downward growth of the root, allowing the plant to establish proper orientation.

Without the presence of gravity, the germinating corn seeds would not be able to establish the proper orientation and direction of growth. The root may not grow downward, leading to irregular and inefficient water and nutrient absorption. The shoot may not grow upward, resulting in an abnormal and compromised overall plant structure.

Therefore, gravity serves as a crucial external factor that guides the growth of germinating corn seeds, ensuring proper root development, anchorage, and shoot orientation for successful plant growth.

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If a srna is bound to the ribosome binding sequence of a mrna coding for an enzyme in a bacteria, what effect will this have on the amount of enzyme in this cell?.

Answers

If an sRNA is bound to the ribosome binding sequence of an mRNA coding for an enzyme in a bacteria, it will reduce the amount of enzyme.

What is an sRNA?

A small RNA (sRNA) is a short sequence that binds to target mRNAs by base complementarity and thus reduces gene expression.

These sequences (sRNAs) can efficiently block prokaryotic translation in order to reduce the amount of protein.

The sRNAs have fundamental regulatory roles both in bacterial translation and protein production.

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A 30.0 x 10^8 L sample of nitrogen inside a rigid, metal container at 19.50 °C is placed inside an oven whose temperature is 78.50 °C. The pressure inside the container at 19.50 °C was at 864.5 psi. What is the pressure of the nitrogen after its temperature is increased?

Answers

Answer:

Answer:

3.31 atm.

Explanation:

Gay-Lussac's law states that for a given mass and constant volume of an ideal gas, the pressure exerted on the sides of its container is directly proportional to its absolute temperature.

∵ P α T.

∴ P₁T₂ = P₂T₁.

P₁ = 3.00 atm, T₁ = 20.0 °C + 273.15 = 293.15 K.

P₂ = ??? atm, T₂ = 50.0 °C + 273.15 = 323.15 K.

∴ P₂ = (P₁T₂)/T₁ = (3.00 atm)( 323.15 K)/(293.15 K) = 3.307 atm ≅ 3.31 atm.

The monarch butterfly population has declined due to a scarcity of:.

Answers

Answer:

The monarch butterfly population has declined due to a scarcity of milkweed

Who was the first to really study genetics and nicknamed the father of genetics?.

Answers

Answer:

Gregor Mendel

Explanation:

Hope this helps:)....if not then sorry for wasting you time and may God bless you:)

The process in which a gas turns back into a liquid is called __________. What word completes the sentencA helium balloon's temperature is raised by 1°C. Will this cause its molecules to move faster or slower?e?

Answers

Answer:

the process is called condensation.

the molecules will move faster

Why are food webs more realistic than food chains?

look at the attachment please!

Answers

Answer:

the correct answer is B

Explanation:

i put it in answer form for others:)

The boy is pushing a box with force 30 N. How much force is the box pushing back with and why

Answers

Answer:

30N

Explanation:

Newton's third law states that when you apply a force onto something, it gives the same force in an equal but opposite direction.

Why would it be incorrect to say that the DNA sequence A-C-G codes for the amino acid threonine?

Answers

It would be incorrect to say that the DNA sequence A-C-G codes for the amino acid threonine because mRNA codons code for amino acids not DNA.

What is a codon?

A codon is a triplet nucleotide sequence that encodes a particular amino acid.

A DNA sequence is transcribed into mRNA sequence, which is read in a group of three nucleotides called codon.

Each mRNA codon (three letter) encodes an amino acid.

Therefore, it would be incorrect to say that the DNA sequence A-C-G codes for the amino acid threonine because mRNA codons code for amino acids not DNA.

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Through what process does water enter the atmosphere from the ocean?

A. Transportation

B. Evaporation

C. Runoff

D. Filtration

Answers

Evaporation because is the one that evaporates and goes up


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