Can u guys help me with these 3 questions What color would the solution in the test tube be after being in the
light, and what would it be if it were then placed in the dark for 24 hours, and why?

A

Green after being placed in the light because the plant would remove CO2 by photosynthesis; yellow after being placed in the dark because the plant would release CO2 by respiration.

B

Yellow after being placed in the light because the plant would release CO2 by photosynthesis; green after being placed in the dark because the plant could not photosynthesize in the dark.

C

Green after being placed in the light because the plant would remove CO2 by photosynthesis; green after being placed in the dark because no CO2 would enter the tube since it is air tight.

D

Yellow after being placed in the light because the plant would release CO2 by photosynthesis; yellow after being placed in the dark because no CO2 could leave the tube since it is air tight.

Which macromolecule is a primary component of cell walls, and which argument provides evidence for how the structure of this molecule relates to its purpose within the cell wall?

A

Lipids are the primary component, and they repel and prevent excess uptake of water because they form carbon chains.

B

Lipids are the primary component, and they protect the cell and help maintain its shape because they form carbon rings.

C

Carbohydrates are the primary component, and they repel and prevent excess uptake of water because they form carbon chains.

D

Carbohydrates are the primary component, and they protect the cell and help maintain its shape because they form carbon rings.

he endosymbiotic theory states that the mitochondria of eukaryotes are the evolutionary result of a Proto-eukaryotic cell engulfing an aerobic bacterium, which then evolved into the mitochondrion.

Which characteristic of mitochondria supports this theory of development?

A

retention of a single layer membrane

B

retention of the chlorophyll pigments

C

retention of their own genome

D

retention of their own nucleus