Photosynthesis Part 1

Question 1

What do all living organisms require to survive?

Answer 1

Energy

Question 2

How do plants obtain energy?

Answer 2

Directly from the sun

Question 3

How do animals obtain energy?

Answer 3

From the food that is eaten

Question 4

What is the process by which plants convert radiant energy into chemical potential energy?

Answer 4

Photosynthesis

Question 5

What does the term ‘photosynthesis’ mean?

Answer 5

Light is used to manufacture energy

Question 6

Define metabolism.

Answer 6

Chemical processes in organisms controlled by enzymes

Question 7

What is anabolism?

Answer 7

Building up chemical reactions

Question 8

What is catabolism?

Answer 8

Breaking down chemical reactions

Question 9

What is the iodine solution used for?

Answer 9

To test for starch

Question 10

What is the result of a positive starch test with iodine solution?

Answer 10

Colour changes from brown to blue-black

Question 11

What are autotrophic organisms?

Answer 11

Green plants that produce their own food through photosynthesis

Question 12

What are heterotrophic organisms?

Answer 12

Organisms that cannot photosynthesize and obtain food from other organisms

Question 13

What energy source is needed by plants for photosynthesis?

Answer 13

Energy from the sun

Question 14

What is the chloroplast?

Answer 14

Organelle in plants, site for photosynthesis

Question 15

What is chlorophyll?

Answer 15

Green pigment needed for photosynthesis

Question 16

What are thylakoids?

Answer 16

Part of the chloroplast that contains chlorophyll

Question 17

What are grana?

Answer 17

Stacks of thylakoids; light-dependent phase of photosynthesis takes place here

Question 18

What is the stroma?

Answer 18

Liquid part of the chloroplast; light-independent phase of photosynthesis takes place here

Question 19

Photosynthesis produces which carbohydrate?

Answer 19

Glucose

Question 20

Fill in the blank: Photosynthesis is a _______ process.

Answer 20

Chemical