Question

cell review
identify each cell structure and its purpose(s) in the plant cell:

1. structure:

purpose(s):

1. structure:

purpose(s):

1. structure:

purpose(s):

1. structure:

purpose(s):

1. structure:

purpose(s):

1. is structure 1 present in all plant cells?
2. is structure 4 present in all plant cells?
3. is structure 5 present in all plant cells?

Explanation:

1. Structure 1: Cell Wall. It provides structural support and protection to the plant cell.
2. Structure 2: Nucleus. It contains the cell's genetic material (DNA) and controls cellular activities such as growth, metabolism, and reproduction.
3. Structure 3: Cytoplasm. It is the jelly - like substance where many cellular processes occur, and it houses the organelles.
4. Structure 4: Mitochondrion. It is the powerhouse of the cell, generating ATP (adenosine triphosphate) through cellular respiration.
5. Structure 5: Chloroplast. It is the site of photosynthesis, converting light energy into chemical energy (glucose).
6. Yes, the cell wall (structure 1) is present in all plant cells.
7. Yes, mitochondria (structure 4) are present in all plant cells as they are essential for energy production.
8. No, chloroplasts (structure 5) are not present in all plant cells. For example, root cells do not have chloroplasts as they are not involved in photosynthesis.

Answer:

1. Structure: Cell Wall; Purpose(s): Provides structural support and protection.
2. Structure: Nucleus; Purpose(s): Controls cellular activities and contains genetic material.
3. Structure: Cytoplasm; Purpose(s): Site of many cellular processes and houses organelles.
4. Structure: Mitochondrion; Purpose(s): Generates ATP through cellular respiration.
5. Structure: Chloroplast; Purpose(s): Site of photosynthesis.
6. Yes.
7. Yes.
8. No.