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oksian1 [2.3K]
3 years ago
11

The structure of a DNA molecule is a

Biology
2 answers:
poizon [28]3 years ago
4 0

Answer:

double helix is the answer

Nata [24]3 years ago
3 0

Answer:

double helix, which is made up of a nitrogenous base, a five-carbon sugar (deoxyribose), and a phosphate group. There are four nitrogenous bases in DNA, two purines (adenine and guanine) and two pyrimidines (cytosine and thymine).

Explanation:

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Answer:

Heterotrophs/ or consumers

Explanation:

Heterotrophs, or consumers, are organisms that must obtain energy by consuming other organisms (autotrophs or other heterotrophs) as food.

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A 2-year-old child with a 5-day history of an upper respiratory tract infection is brought to the pediatrician’s office by her m
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Many animals are grouped together in a particular environment that best satisfies their needs. Which is their likely pattern of
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"Clumped dispersion" is the one among the following choices given in the question that <span>is their likely pattern of dispersion. The correct option among all the options that are given in the question is the first option or option "A". I hope that this is the answer that has actually come to your help.</span>
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Question 13
Vinvika [58]
A. Or C. Because, if I remember correctly, either one of those is correct

I think it is A. Though, hope this helps (╹◡╹)
8 0
3 years ago
Which statement is true about extracted lipid?
SSSSS [86.1K]

Answer:

The right answer is (B) the extracted lipids cover twice the surface area of the intact red blood cells.

Explanation:

To explain this statement is necessary to take into consideration the structure of a lipid. On the first place lipids that form membranes are called phospholipids, this means they have one 'head' that is hydrophilic and a tail composed by the lipidic chain that is hydrophobic.

In a biologic context, the phospholipids form the cellular membrane. They do so by a bi-layer disposition, meaning that one the external side of the cell there is a layer of phospholipids with the hydrophilic head and in the internal side, there is a second layer of phospholipids with the hydrophilic head. The hydrophobic 'tails' are in the middle. This disposition is due to the fact that both the external and the internal environments are water based.

Therefore, since each cell has a bilayer membrane of phospholipids, when the cells are dissolved and all the lipids that used to form the membrane are put together, they will occupy twice the surface of the red blood cells.

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