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avanturin [10]
3 years ago
13

Match the description to the word :)

Biology
1 answer:
il63 [147K]3 years ago
6 0

Answer:

B

C

Explanation:

p+n is mass number

neutron has 0 charge

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Which are example of active transportation across the cell membrane?
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Answer:

Explanation:

-Sodium-potassium pump (exchange of sodium and potassium ions across cell walls)

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-Calcium ions moving from cardiac muscle cells.

-Glucose moving in or out of a cell.

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8 0
3 years ago
Please help ASAP!! Will give Brainly!!!!!
Iteru [2.4K]
Answer:
3A
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I’m not sure of the rest give me a second. (I’ll add the rest in the comments section) But hope this helps! :)
5 0
3 years ago
Draw the structure of DNA nucleotide with adenine as nitrogenous base <br>​
zavuch27 [327]

Answer:

A nucleotide is made up of one sugar molecule, one phosphate molecule and one of the four bases. Here is the structural formula for the four nucleotides of DNA. Note that the purine bases (adenine and guanine) have a double ring structure while the pyrimidine bases (thymine and cytosine) have only a single ring.

Explanation:

A nucleotide is made up of one sugar molecule, one phosphate molecule and one of the four bases. Here is the structural formula for the four nucleotides of DNA. Note that the purine bases (adenine and guanine) have a double ring structure while the pyrimidine bases (thymine and cytosine) have only a single ring.

5 0
3 years ago
What is the definition of DNA
Maru [420]

Hi there!

I see that you are new, so let me be the first to say WELCOME TO BRAINLY!

I hope you enjoy it!

ANSWER:

the fundamental and distinctive characteristics or qualities of someone or something, especially when regarded as unchangeable <--- so that is the dictionary definition

DNA stands for deoxyribonucleic acid,

Hope this helps!

~CoCo

4 0
3 years ago
What organic compound makes up the major portion of the cell membrane?
cupoosta [38]
A lipid does, it forms a phospholipid bilayer.
4 0
3 years ago
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