3.2.3 Food Vacuole Formation: The Role of the Lysosome

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1

The cellular organelle that contains hydrolytic enzymes for the digestion of cellular waste products and toxins is called a

lysosome.

2

Lysosomes are vesicles formed by the

Golgi apparatus.

3

The role of lysosomes in phagocytosis is to

1. engulf smaller particles.

2. fuse with other vacuoles to aid in the digestion of macromolecules.

3. stimulate host cell death.

4. transport macromolecules to other vacuoles for digestion.

2. fuse with other vacuoles to aid in the digestion of macromolecules.

4

True or false?
Lysosomes are vesicles formed by the ER and Golgi apparatus.

True

5

True or false?

Food vacuoles pinch off of the Golgi apparatus.

false

Food vacuoles may form from both endocytosis and phagocytosis.

6

Lysosomes are membrane-bound organelles that contain

digestive enzymes

7

Lysosomes ________ ________ molecules enclosed in food vacuoles

break down

8

Tay-Sachs is a fatal disease in humans caused by the
defective __________ enzyme, hexosaminidase, responsible
for breaking down lipids in the brain.

lysosomal