Ultrastructure Of Plant Cells

Question 1

What features do plant cells have that animal cells don’t

Answer 1

Cellulose cell wall
Vacuoles
Chloroplasts

Question 2

What is cellulose

Answer 2

A complex carbohydrate

Question 3

Cellulose cell wall features

Answer 3

Freely permeable
Give plant cell shape
Rigid structure due to contents of the cell pressing against it
Acts as a defence mechanism as it protects the contents of the cell against invading pathogens

Question 4

What is a vacuole

Answer 4

A membrane lined sac filled with cell sap

Question 5

Why are large permanent vacuoles important

Answer 5

They maintain turgor so the contents of cell push on the cell wall and maintain a frigid structure

Question 6

What is the membrane of a vacuole called

Answer 6

Tonoplast

Question 7

Chloroplasts are responsible for what

Answer 7

Photosynthesis

Question 8

What are chloroplasts structure

Answer 8

Double membrane structure

And internal network of membranes which formed flattened sacs called thylakoids

Question 9

What is the fluid in chloroplasts called

Answer 9

Stroma

Question 10

What is granum

Answer 10

Several thylakoids stacked together

Question 11

What do Grana contain

Answer 11

Chlorophyll pigments where light dependent reactions occur