Question

4.2 understanding cells: parts of cells
label the cells using the terms from the box. some terms can be used more than once.
exercise 14
vacuole cell membrane cytoplasm chloroplast
mitochondrion cell wall nucleus
plant cell
animal cell

1. what is one activity plants do that animals do not? what cell part do they use to do that?

critical thinking
what might cause a cell to become larger or smaller in size? write your answer on a separate sheet of paper.

Explanation:

1. For plant cell:

• The out - most layer is the cell wall which provides structure and support.
• Inside the cell wall is the cell membrane which controls what enters and leaves the cell.
• The large space is the vacuole which stores water and other substances.
• The jelly - like substance is the cytoplasm where organelles are suspended.
• The green structures are chloroplasts which are involved in photosynthesis.
• The mitochondria are the power - houses of the cell, providing energy.
• The dark, round structure is the nucleus which contains genetic material.

1. For animal cell:

• The outer layer is the cell membrane.
• The jelly - like substance is the cytoplasm.
• The mitochondria provide energy.
• The nucleus contains genetic material.
• The small vacuoles store substances.

1. Plants perform photosynthesis using chloroplasts, which animals cannot do.

Answer:

Plant Cell:

1. cell wall
2. cell membrane
3. chloroplast
4. cytoplasm
5. vacuole
6. nucleus
7. mitochondrion

Animal Cell:

1. cell membrane
2. mitochondrion
3. cytoplasm
4. nucleus
5. vacuole
6. Plants perform photosynthesis. They use chloroplasts to do this.