Answer:
If a large molecule need to move against the concentration gradient the struc of an energy rich compound such as Adenosine tri phosphate or ATP is need to be used.
Explanation:
ATP provides energy to carry out the uphill transport of molecule across the plasma membrane by the helps of specific ion channel.Uphill transport is a type of membrane transport process in which a molecule is being transported against its concentration gradient that means the molecule is moving from low concentration region to high concentration region.
In general this type of transport is Thermodynamically unfavorable which is made favorable by the energy derived from the hydrolysis of ATP .
Control group
Explanation:
Experiments are usually designed so that the differences between the experiment and control groups can be observed.
- The experimental group is the group that follows the details of the hypothesis where variables are changed to see their causes and effects.
- The control group is the standard by which the experimental group is compared with.
- The variables are being tested for in the experimental group to see how they are changing .
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1. B 2. c. 3. B and im not sure about the other two
Observation designed to minimize the effects of variables other than the independent variable.
