Question

1. cells possess structures that perform specific jobs. which statement correctly pairs a cell - structure with a function it performs in the cell? (a) the cell membrane synthesizes proteins for cell processes. (b) ribosomes regulate which materials enter and leave the cell. (c) vacuoles transfer genetic information from one cell to another. (d) the mitochondria provide energy for cell processes. 23. in single - celled organisms, materials are stored primarily in (a) mitochondria (b) nuclei (c) vacuoles (d) ribosomes 24. one difference between plant and animal cells is that animal cells do not have (a) chloroplasts (b) a cell membrane (c) a nucleus (d) centrioles 25. what is the main function of a vacuole in a cell? (a) storage (b) release of energy (c) coordination (d) synthesis of molecules 26. when viewing some cheek cells under low power, the cells need to be (a) to the left of the field of view (b) to the right of the field of view (c) below the field of view (d) in the center of the field of view 27. which cell structure is correctly paired with its primary function? (a) vacuole - cell division (b) mitochondrion - movement (c) ribosome - protein synthesis (d) nucleus - storage of nutrients

Explanation:

1. The mitochondria are the power - houses of the cell and provide energy for cell processes. The cell membrane controls what enters and leaves the cell, ribosomes are for protein synthesis, and vacuoles are for storage.
2. In single - celled organisms, materials are stored primarily in vacuoles. Mitochondria are for energy production, nuclei contain genetic material, and ribosomes are for protein synthesis.
3. Plant cells have chloroplasts for photosynthesis, while animal cells do not. Both plant and animal cells have a cell membrane, a nucleus, and centrioles (animal cells have centrioles which are involved in cell division).
4. The main function of a vacuole in a cell is storage. It can store water, nutrients, and waste products.

Answer:

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