Topic 4 - Lesson 5

Question 1

Chloroplasts

Answer 1

These organelles are the site of photosynthesis, they convert light energy into carbohydrates such as glucose

Question 2

Cell Wall

Answer 2

Made of the insoluble polysaccharide cellulose it offers strength, structure and protection to plant cells

Question 3

Tonoplasts

Answer 3

They regulate what enters and leaves the vacuole

Question 4

Amyloplasts

Answer 4

They contain starch

Question 5

Middle Lamella

Answer 5

Found in the middle and in between cell walls, they are made of a cement like substance called pectin which glues plant cells together

Question 6

Plasmodesmata

Answer 6

They aid the movement of substances between cells

Question 7

Pit

Answer 7

Small holes through the cell wall which allow some substances to pass from cell to cell

Question 8

Vacuole

Answer 8

Contains cell sap

Question 9

Cellulose

Answer 9

Cellulose is a polymer of glucose and composed of beta glucose it is a straight unbranched chain and its function is to strengthen the cell wall