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2 years ago

Help me answer #2-3 plz and ty

Biology

1 answer:

Viktor [21]2 years ago

4 0

2. Sickle cells are abnormally shaped red blood cells that have a reduced ability to carry oxygen.
3. Sickle cells are important because they cause a lot of harm to people with sickle cell anemia. Not only can they not carry enough oxygen, but they also clog capillaries in many tissues, which causes many issues and leads to the death of that person.
Hope that helped you.

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10 points

dalvyx [7]

Solids-holds its shape

Liquid-take the shape of whatever its in

Gases- don't take a shape up

5 0

2 years ago

What part of the body uses active transport to take up nutrients after concentration has reached equilibrium

jekas [21]

The villi of the small intestine use active transport to take up nutrients after concentration has reached equilibrium.

<h3>What is Active transport?</h3>

Active transport may be defined as the process that occurs against the concentration gradient and is mediated by carrier proteins. Metabolic energy is used to move ions or molecules against a concentration gradient.

During the process of digestion, the villi in the small intestine enthrall the soluble nutrients gradually. Over time, the concentration of nutrients in the villi acquires an equilibrium with the concentration in the gut. Until here, the nutrient uptake is carried by the process of passive diffusion.

But after attaining the equilibrium, the nutrient uptake is carried by the process of active transport.

The complete question is as follows:

What part of the body uses active transport to take up nutrients after concentration has reached equilibrium?

Lungs
Stomach
Small intestine
Liver

Therefore, the correct option for this question is C, i.e. small intestine.

To learn more about Active transport, refer to the link:

brainly.com/question/18434867

#SPJ1

7 0

1 year ago

What is the name of the enzyme used to make rna nucleotides

Likurg_2 [28]

<h2>RNA Polymerase</h2>

Explanation:

RNA polymerase, a chemical in the cell, is answerable for making mRNA from the right quality. RNA polymerase is like DNA polymerase, yet it makes a RNA strand as opposed to a DNA strand. The promoter region of DNA Helix is attached by RNA polymerase.

It pulls in nucleotides that supplement those on the DNA strand containing the gene of interest. RNA polymerase duplicates one strand of DNA to make a stretching bit of singlestranded mRNA. RNA polymerase makes the mRNA strand in what is known as the 5' to 3' course.

8 0

2 years ago

Which does not occur at the continental margin in the pacific ocean?

hammer [34]

Widened margins does not occur at the continental margin

3 0

2 years ago

Read 2 more answers

What is the function of restriction endonucleases in bacteria?

Scilla [17]

Answer:

This is an incomplete question without the options.

Here are the options to pick from

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Within a six-base DNA recognition sequence, an enzyme that cuts between the 3rd and 4th bases from the 5' end will generate blunt ends.

a)True

b)False

a) True

What is the function of restriction endonucleases in bacteria?

a) They serve no function.

b)They allow bacteria to genetically recombine with other bacteria.

c) They allow bacteria to engineer new DNA fragments.

d)They provide a defense mechanism against infection by viruses.

Our answer is surely D

d)They provide a defense mechanism against infection by viruses.

Explanation:

Restriction enzyme/restriction endonuclease:

Are produced by bacteria for cleaveing DNA at specific sites. Restriction enzymes cleave foreign DNA in the bacterial cell to fight against infecting organisms.

Pls Note:

Restriction enzyme are used by

bacteria to defend against bacterial viruses called bacteriophages or phages

3 0

2 years ago