Mitochondria are organelles found in both plant and animal cells. these organelles are rod-shaped with cristae and highly folded inner membranes. mitochondria are responsible for a. synthesis of new molecules. b. structural support. c. transporting materials. d. cellular respiration.

How many chromosomes are in a gold fish?

Lactase is essential for digesting lactose in milk. this enzyme is specific for this sugar. why? molecules and active sites vary in size; only properly sized molecules can fit.there is a precise compatibility between the active site and the lactose molecule.specificity refers to the action of the enzyme, such as hydrolysis, and relatively few molecules can be hydrolyzed.reaction-specific enzymes assume a fit by folding around the most numerous substrate molecules.

What does this experimental investigation lack