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nadya68 [22]
3 years ago
5

Which is the best definition of activation energy?

Biology
1 answer:
Nataly [62]3 years ago
5 0
The energy required to bind a substrate to an active site when an enzyme is
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Cholesterol is an organic steroid in mammalian cells that controls membrane permeability and fluidity. How many hydrigens
Kisachek [45]

There are 46 atoms of hydrogen inside the cholesterol.

The formula of cholesterol is C27H46O, meaning that besides hydrogen it contains 27 atoms of carbon and one atom of oxygen.

Cholesterol can be found in large concentrations within the liver, spinal cord, and brain providing the stability of the cell membranes.


8 0
3 years ago
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What can you conclude is one disadvantage of the arrangement of glucose molecules that gives chitin and cellulose their strength
Lynna [10]
The correct answer is the option B) It does not allow for the accumulation of glycogen and, therefore, limits the organism's mobility.
Explanation:
In cellulose and chitin the arrangement of glycogen in in alternate arrangement that provides the support to the plants that makes it strong and the limits its mobility.
If plants lac their special arrangement of the glycogen in chitin and cellulose the water will flow in and it will not be stand upright.
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5 0
1 year ago
Which equation best represents the process of photosynthesis?
ratelena [41]

Answer: Option C

6CO2 + 12H2O + light --> C6H12O6 + 6O2 + 6H2O

Explanation:

Photosynthesis is the process by which autotrophs such as green plants generate their food (usually sugar molecules) from simple inorganic molecules like atmospheric carbon dioxide and water, in the presence of sunlight trapped by chlorophyll.

From the equation of photosynthesis,

- several units of glucose molecules (C6H12O6) is produced and then stored in plants tissues as starch.

- Oxygen is released as by-product

- Some water is given off also

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3 years ago
The steam engine in a train heats water until it becomes steam. The steam pushes pistons to move the train. The train is changin
Anni [7]
I think the answer is A

7 0
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What do we call the process by which rocks wear down and break apart into smaller pieces? weathering erosion
andreev551 [17]
It is called mechanical weathering or physical weathering.
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