Plant cells

Question 1

What is the cell wall? (what and function)

Answer 1

A rigid, tough, plasma membrane that surrounds each cell in a plant, composed primarily of cellulose, and provides structural support, protection, and prevents excessive uptake of water.

Question 2

What are the 3 parts of a plant cell wall?

Answer 2

1. Primary wall
2. Middle lamella
3. Secondary wall

Question 3

What is the primary cell wall in a plant cell? (what and function)

Answer 3

Made out of cellulose and pectin, it is a thin and flexible wall that surrounds plant cells and allows expansion as the cell grows.

Question 4

What is the middle lamella in a plant cell? (what and function)

Answer 4

A thin layer that cements together the primary cell walls of two adjoining plant cells.

Question 5

What is the secondary cell wall in a plant cell? (what and function)

Answer 5

A rigid layer in plant cells made from cellulose, hemicellulose, and lignin that provides structural support and protection.

Question 6

What is chloroplast? (what & function)

Answer 6

An organelle in plant cells that are the site of photosynthesis.

Has a double membrane, it’s own genetic information, and is autonomous for growth and reproduction within the cell.