Which of the following is a function of chloroplasts? a. chloroplasts provide a vesicle for materials to move around in the cell. b. chloroplasts absorb sunlight to enable a plant to make food. c. chloroplasts oxidize sugar to produce chemical energy in the form of atp. d. chloroplasts provide a site for amino acids to be assembled into proteins.

When a person is exercising the body needs to deliver increased amounts of oxygen to the muscles which component of blood ensures that the muscles will receive it

What is the significance of the protein-lined pits? a. protein attracts other proteins needed for atp synthesis within the cell. b. protein-lined pits are able to transport one molecule at a time down the concentration gradient within the cell. c. the polarity of proteins allows other polar molecules to attach and be transported in the cell by transport channels. d. receptors within the pits allow ligands to fuse and be transported into the cell by endocytosis.

Witch theory suggests all living things are made up of cell or cells