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Lerok [7]
3 years ago
15

What makes up the backbone of DNA?

Biology
2 answers:
ss7ja [257]3 years ago
7 0

Answer:

Sugar and Phosphate

melamori03 [73]3 years ago
5 0

Answer:

It has an alternating chemical phosphate and sugar backbone, making the 'sides' of the ladder. (Deoxyribose is the name of the sugar found in the backbone of DNA.) In between the two sides of this sugar-phosphate backbone are four nitrogenous bases: adenine (A), thymine (T), cytosine (C), and guanine (G).

Explanation:

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He is incorrect because a catalyst is a substance that speeds up a chemical reaction so if there is no reaction to begin with a catalyst will not due anything.
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Which ecological relationship is best represented by this graph?
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mutualism

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Describe the role. of the liver in regulating the concentration of glucose in the body​
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<h2>Have a nice day!!</h2>
4 0
2 years ago
Read 2 more answers
The first one will be the brainest
just olya [345]
<h2>Cell Analogy</h2>

Explanation:

  • Nucleus: Parents

As we see that parents control everything in the house. Similarly,the nucleus controls everything in the cell.

  • Cell membrane: Door

A door is analogous to the cell membrane because it allows people come and go. Similarly,the cell membrane in a cell can allow certain things to enter and exit.

  • Cytoplasm: Air

The cytoplasm fills the space in a cell. It is similar to air which is filled everywhere in the house.

  • Nuclear membrane: Security guard

The nucleus in a cell is protected by nuclear membrane. The nuclear membrane is analogous to secuity guard. As people in a house are protected by security guard, similarly nucleus is protected by nuclear membrane.

  • Endoplasmic reticulum: Hall ways

Endoplasmic reticulum transport things to other places in the cell. It is similar to hallways which help us to reach different places in the house.

  • Golgi bodies: Car

The golgi bodies modify,sort and package proteins.

It send them to other parts of the cell when needed.

It is similar to a Car which transports people and can store stuffs.

  • Mitochondria: Stove

The mitochondria in a house is analogous to Stove as it breaks down nutrients and turns them into energy. Similarly, the Stove in our house, cooks foods and it is converted into energy when consumed.

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The ribosomes are a cell structure that make protein. It is same as a kitchen in our house where people make food or proteins.

7 0
3 years ago
Which are example of active transportation across the cell membrane?
Kaylis [27]

Answer:

Explanation:

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-Calcium ions moving from cardiac muscle cells.

-Glucose moving in or out of a cell.

-A macrophage ingesting a bacterial cell.

8 0
2 years ago
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