Photosynthesis Concepts and Discoveries

Photosynthesis Concepts and Discoveries

Assessment

Interactive Video

Biology

9th - 10th Grade

Hard

Created by

Patricia Brown

FREE Resource

The video tutorial covers the history of photosynthesis, focusing on the contributions of three scientists: Van Helmont, Priestly, and Ingan House. Van Helmont's experiment demonstrated that plant mass does not come from soil, but he incorrectly concluded it was from water. Priestly discovered that plants produce oxygen, which supports combustion and life. Ingan House found that light is necessary for plants to produce oxygen. The video also explains the photosynthesis equation and the role of chlorophyll in absorbing light energy.

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10 questions

Show all answers

1.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

What was the main focus of the first video mentioned in the introduction?

The role of chlorophyll in photosynthesis

The history of photosynthesis

The generation of ATP and its use in photosynthesis

The discovery of oxygen

2.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

What did Van Helmont originally hypothesize about plant growth?

Plants grow by absorbing sunlight

Plants grow by taking material from the soil

Plants grow by absorbing oxygen

Plants grow by using chlorophyll

3.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

What was the conclusion of Van Helmont's experiment?

Plant mass comes from soil

Plant mass comes from water

Plant mass comes from sunlight

Plant mass comes from oxygen

4.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

What did Priestly discover about plants?

They reflect green light

They need soil to grow

They produce oxygen

They absorb carbon dioxide

5.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

What was the purpose of Priestly's experiment with the mouse and candle?

To indicate that plants grow from soil

To prove that plants absorb sunlight

To demonstrate that plants produce oxygen

To show that plants need water

6.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

What did Ingan House discover about the role of light in photosynthesis?

Light is not necessary for photosynthesis

Plants absorb light to produce soil

Light is absorbed by the soil

Plants produce oxygen only in the presence of light

7.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

Which part of the photosynthesis equation did Ingan House contribute to?

Water

Oxygen

Light

Carbon dioxide

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