Question

1. which sequence of these cell parts is correctly associated with intracellular digestion?
2. food vacuole
3. cell membrane
4. lysosome

a. 2, 1, 3
b. 1, 2, 3
c. 2, 3, 1
d. 1, 2, 3

1. the regulation of the movement of materials into and out of a cell is the function of the

a. vacuole.
b. cell wall.
c. cell membrane.
d. golgi apparatus.
use the following diagram to answer the next two questions.

1. a function of the organelle labeled x is to

a. make atp.
b. synthesize proteins.
c. manufacture glucose.
d. prepare secretory vesicles.

1. a function of the structure labeled y is

a. enzyme storage.
b. lysosome production.
c. detoxify the cytoplasm.
d. steroid manufacture and packaging.

1. the presence of an inner membrane that is folded to form cristae is characteristic of

a. lysosomes.
b. chloroplasts.
c. mitochondria.
d. golgi apparatus.

Explanation:

Question 25

For intracellular digestion, the cell membrane (2) first allows substances in. Then the food vacuole (1) holds the ingested material. Lysosomes (3) fuse with the food vacuole and release enzymes for digestion.

The cell membrane is a selectively - permeable barrier. It controls what enters and exits the cell. The cell wall (in plant cells) is more for structural support. Lysosomes are for digestion. The Golgi apparatus is for modifying, sorting, and packaging proteins.

Assuming X is a mitochondrion (common organelle in such diagrams). Mitochondria are the power - houses of the cell and make ATP through cellular respiration. Protein synthesis occurs in ribosomes. Glucose manufacture is in chloroplasts (in plants). Preparing secretory vesicles is a function of the Golgi apparatus.

Answer:

B. 1, 2, 3

Question 26