Photosynthesis (Term 3 2022)

Question 1

What is the definition of photosynthesis?

Answer 1

• Photosynthesis is the process that takes place in the chloroplasts of plants, using sunlight to synthesize glucose from carbon dioxide and water.
• Photosynthesis involves the green pigment chlorophyll and generates oxygen as a by-product.
• The glucose serves as chemical energy for the plant.

Question 2

What are chloroplasts?

Answer 2

Chloroplasts are one of the organelles in a plant cell and are referred to as the site of photosynthesis. They contain chlorophyll which absorbs light energy. The chlorophyll reflects green light, which gives chloroplasts their colour.

Question 3

What is the nucleus?

Answer 3

• One of the organelles on a plant cell.

- Contains DNA which controls cellular functions by coding for proteins.

Question 4

What is a cell wall?

Answer 4

• Provides strength and supports the cell by giving it shape.
• It is made from glucose bonded together in long chains (cellulose)

Question 5

What is the mitochondrion?

Answer 5

• Site of aerobic cellular respiration- Making energy from glucose.
• Too small to see under the microscope.

Question 6

What are the reactants of photosynthesis?

Answer 6

The two reactants of photosynthesis are water and carbon dioxide.

Question 7

What is the purpose of photosynthesis for the plant?

Answer 7

The purpose of photosynthesis for the plant is to produce chemical energy in the form of glucose for the life processes of the plant.

Question 8

What allows the reactants to react together in photosynthesis?

Answer 8

Chlorophyll, excess water, and sunlight are essential to allowing photosynthesis to occur.

Question 9

What are the products produced from the process of photosynthesis?

Answer 9

The products produced from photosynthesis are oxygen and glucose.