Problem:

Question 1: The endosymbiotic theory states that mitochondria originated from

a. Purple bacteria entering and remaining in the cytoplasm of another cell.

b. A routine step in evolution

c. The fusion of several prokaryotes

d. A long, intense period of lightning

e. The slow evolution of various organelles over millions of years, particularly during the time of the dinosaurs.

Question 2: A house plant seems to be growing slowly and lacks its normal bright green color. You call a botanist for advice. She suggests that the plant may be deficient in magnesium (Mg2+). Why are these symptoms associated with Mg2+ deficiency?

a. Lack of Mg2+ in the soil allows pathogenic bacteria to grow.

b. Mg2+ is important in the structure of many amino acids.

c. Cytochromes require Mg2+ to function properly.

d. Mg2+ is required before NADPH can function.

e. Mg2+ is an important component in chlorophyll.

Please Explain don't just write the answer.