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Lynna [10]
3 years ago
8

Explain through the Watson-Crick model, the secondary structure exhibited by the nucleic acids.​

Biology
1 answer:
klemol [59]3 years ago
7 0

For example, one of the secondary structures exhibited by DNA is the famous Watson- Crick model. This model says that DNA exists as a double helix. The two strands of polynucleotides are antiparallel, i.e. run in the opposite direction. The backbone is formed by the sugar—phosphate—sugar chain.

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How is sucrose moved in sink?
Dvinal [7]

The sucrose moved in sink by active transport.

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

Active transport is a type of transport in which the cell expends energy to move solutes against their concentration gradients. The sodium-potassium pump is an example of active transport. Active transport differs from passive transport in that the cell does not expend energy.

In this case, the sucrose moves from companion cells in sink elements by active transport. This reduces the water potential of the sink element  by osmosis, which increases the hydrostatic pressure.

See more about sucrose at brainly.com/question/24214907

#SPJ12

4 0
2 years ago
How does the size of a cell compare with that of a tissue?
Mariulka [41]

Answer:

Cells make up tissues, so they are much smaller

Explanation:

The level of structure: cells to tissues to organs to organ systems to organisms

The smaller they are the lower they are on the cell structure build

5 0
3 years ago
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Talja [164]

Answer:The ATP molecule can store energy in the form of a high energy phosphate bond joining the terminal phosphate group to the rest of the molecule.

Explanation:

5 0
3 years ago
Sean has carpal tunnel syndrome. A few months ago, he began taking megadoses of vitamin B-6, when he read that the vitamin can c
galina1969 [7]

Answer:

C). stop taking vitamin B-6, because he's showing signs and having symptoms of vitamin B-6 toxicity.

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Increase amount of  vitamin B6 lead to lack of muscle control and coordination causing numbness in  the body. walking is also painful and unsteady after the side effects of increase amount of Vitamin B6 appears. High amount of Vitamin B6 can also cause nerve damage due to which coordination of body is also affected.  

SO if  hands were feeling numb and his walking is unsteady. Based on this information, Sean should  immediately stop taking vitamin B-6, because he's showing signs and having symptoms of vitamin B-6 toxicity.

3 0
4 years ago
In the biosphere carbon is stored as _______
Law Incorporation [45]
Carbon is stored in the biosphere within living or recently dead plants, animals and microorganisms in the ocean and on land. Forests contain 86 percent of the planet's carbon on top of the ground. This biomass is released into the carbon cycle through natural decomposition and respiration.
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