Question 12 The rough endoplasmic reticulum is a cell structure that consists of folded membranes that contain ribosomes. What is the advantage of the folded membranes? a increases surface area in order to produce more proteins
b decreases surface area in order to produce more proteins
c increases volume of the endoplasmic reticulum in order to produce more energy
d decreases volume of the endoplasmic reticulum in order to make more energy

Question 13 Proteins have many different function in a cell. Which of the following are possible functions of a protein?
a catalysts and building blocks of DNA
b enzymes and actively transports molecules across the cell membrane
c building blocks of DNA and structural components of cell membrane
d accomponents of the cell membrane and main source of energy in cellular respiration

Question 14 Muscle cells are responsible for obtainig energy so the body can perform voluntary and involuntary movement. Using your knowledge about organelles and muscles, how would a muscle cell differ from other types of animals cells?
a The muscle cell would have larger centrioles than the other types of animal cells.
b The muscle cell would have more mitochondria than the other types of animal cells.
c The muscle cell would have a larger golgi apparatus than other types of animal cells.
d The muscle cell would have more endoplasmic reticulum than the other types of animal cells

Question 15 In pure water, a red blood cell from an animal will swell and burst, but a leaf cell from a plant will not. Which structure in the leaf cell is responsible for this difference?
a cell membrane
b cell wall
c mitochondria
d nucleus