1. compare the metabolism of autotrophs with that of heterotrophs.
2. describe the role of atp in metabolism. how is energy released from atp?
3. what is fermentation? what is muscle fatigue? how are these terms related?
4. what is the name of the pigments that absorb light?
5. what is the importance of the light reactions? why do they occur? first or second?
6. what are some factors that can affect the rates and effectiveness of photosynthesis?
7. how many atp molecules can cellular respiration make with an abundance of oxygen molecules present?
8. how does the presence of oxygen increase the efficiency of cellular respiration?

Following are the answers-

Explanation:

1) Autotrophs use both photosynthesis and chemo-synthesis  to make their food and respiration to break it down. Plants, algae, and some bacteria are example of autotrophs.

Heterotroph is what people are. Hetarotrophs get  energy from organic molecules taken  in from the surroundings .

2) ATP is  a multifunctional nucleotide used in cells as  a  coenzyme.  ATP works in intracellular in energy transport, moving  energy from one part of  a cell to another for  metabolism.

3)  Fermentation is the  Process of deriving energy from the oxidation  of organic compounds. It is  Important in anaerobic conditions when there  is no oxidative phosphorylation to maintain  ATP production by glycolysis.

Muscle fatigue is a common complaint in clinical practice. In humans, muscle fatigue can be defined as exercise-induced decrease in the ability to produce force. Here, to provide a general understanding and describe potential therapies for muscle fatigue, we summarize studies on muscle fatigue, including topics such as the sequence of events observed during force production. During homolactic fermentation, the production of lactic acid causes muscle fatigue.

4) The name of the pigment is Chlorophyll.

5) Light reactions are initiated by  mainly green colored chlorophylls. They convert light energy into chemical energy in the form of ATP & NADPH. ATP & NADPH  carry energy to the 2nd part of photosynthesis, known as the dark reactions.

6) The rate of glucose production and the rate of oxygen output are the main factors.

7) 38 ATP molecules are needed.

8) Respiration using oxygen to break down food molecules is called aerobic respiration. Glucose is the molecule normally used for respiration .  it is the main respiratory substrate. Glucose is oxidised to release its energy.

a "theory" a suggestion that is not 100 % accurate, or a figure. some people say its a theory because they of all the passed theory's about one subject. it depends sometimes theory might be accurate and sometimes they are.