Vacuoles

Q.

Why does Amoeba have contractile vacuoles?

Q. Vacuoles store excess water and waste materials in them.

1. False
2. True

Q. Golgi bodies in a cell-

A) Packages proteins/substances
B) Forms lyosomes
C) Manufactures proteins
D) Controls detoxification

1. A and C
2. A and B
3. C and D
4. B and D

Q. The vacuole is an organelle for _________.

1. energy
2. metabolism
3. storage
4. reproduction

Q. Two species of Amoeba X and Y were kept in fresh water and got adapted. Species X developed contractile vacuole. When both were transferred to sea water and got adapted, both X and Y lost their contractile vacuole. From these observations, we conclude that

1. Both X and Y are marine species
2. Species Y is marine and X is fresh water
3. Species X is marine and Y is fresh water
4. Both X and Y are fresh water

Q. 'A' controls all the activities of the cell and is involved in the inheritance of characters.
'B' is an organelle responsible for photosynthesis.
'C' is the jelly like substance present between the cell membrane and nucleus. Identify A, B and C.

1. A: Nucleus, B: Chloroplast, C: Cytoplasm
2. A: Nucleus, B: Chloroplast, C: Mitochondria
3. A: Vacuole, B: Chloroplast, C: Cytoplasm
4. A: Cytoplasm, B: Mitochondria, C: Chloroplast