1. A , 2. D, 3. A , 4.C , 5. B , 6.A
Answer:
false
Explanation:
The endocrine system acts through chemical messengers called hormones that influence growth, development, and metabolic activities. The action of the endocrine system is measured in minutes, hours, or weeks and is more generalized than the action of the nervous system
ATP binding (ATP gated) IS NOT a mechanism to control the opening and closing of ion channels (Option a).
ATP-gated channels are membrane channel proteins that open in response to binding ATP.
These channels require energy in the form of ATP to open and thus allow the passage of ions/molecules across biological membranes.
For example, the P2X7 receptor is an ATP-gated channel that mediates apoptosis (programmed cell death) of immune cells.
In conclusion, ATP binding (ATP gated) IS NOT a mechanism to control the opening and closing of ion channels (Option a).
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Answer:

Fats are digested through conversion into free fatty acids, which are stored in a form known as triglycerides in the adipose tissue. ... In the mitochondria, the fatty acids are oxidized in the process that creates adenosine triphosphate (ATP), the energy-producing fuel.
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Organ is made up of different tissues that work together to carry out a specific function.
Circulatory -------> Heart
Nervous ----------> Brain
Respiratory ------> Lung
Integumentary --> Skin
Skeletal------------> Bones