7. A cell has the following molecules and structures: a rigid cell wall, nuclear

Question

7. A cell has the following molecules and structures: a rigid cell wall, nuclear envelope, ribosomes, plasma membrane, lysosomes, and mitochondria. It could be a cell from a. a bacterium. b. an animal, but not a plant. c. a plant, but not an animal. d. a plant or an animal. e. none of the above. 8. Which of the following structures contains up to 50 hydrolytic enzymes and is necessary for intracellular "digestion"? a. smooth endoplasmic reticulum b, mitochondria c. central vacuole d. lysosome e. glyoxysome

Explanation / Answer

7. Answer is option C. a plant but not an animal.

THe cell contains nuclear envelope, lysosomes which are not present in prokaryotes like bacteria. The cell also has cell wall which is not present in animal cells. So, it could be only a plant cell.

8. Answer is option D. Lysosome

Lysosomes are double membraned organelles which break down large substances to small.

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