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Experiments in Photosynthesis

Total questions: 10

Worksheet time: 6mins

Name
Class
Date
1.

Which of the following raw materials are important for photosynthesis to take place?

a)

Carbon dioxide

b)

Oxygen

c)

Hydrogen sulphide

2.

Which of the following will trap sunlight in plants?

a)

water

b)

lignin

c)

chlorophyll

3.

Who demonstrated that Plants restore to air whatever breathing animals and burning candles remove?

a)

Joseph Priestley

b)

Jan Ingenhousz

c)

Julius Von Sachs

4.

Jan Ingenhousz showed that in sunlight, green parts of plants produced _________bubbles

a)

soap

b)

nitrogen

c)

oxygen

5.

According to Julius Von Sachs, glucose is made in green parts of plants and is stored as ____________

a)

starch

b)

fructose

c)

glycogen

6.

TW Engelmann, using prism split light into its spectral components and illuminated the cladophora algae present in a suspension pf aerobic bacteria. He observed that bacteria accumulated around _______and ________regions of spectrum.

a)

violet and green

b)

yellow and green

c)

blue and red

7.

Cornelius Van Niel used ___________bacteria to conclude that oxygen in green plants comes from water and not from carbondioxide

a)

Purple and green sulphur bacteria

b)

curd bacteria

c)

typhoid bacteria

8.

The organisms that undergo photosynthesis are called

a)

saprophytes

b)

parasites

c)

autotrophs

9.

Chlorophyll is present in

a)

Mitochondria

b)

lysosomes

c)

chloroplasts

10.

Within the chloroplasts the light energy is trapped in

a)

membranes

b)

stroma

c)

ribosomes