Agar

Agar

Assessment

Interactive Video

Science, Biology

4th - 9th Grade

Practice Problem

Hard

Created by

Wayground Content

FREE Resource

The video discusses the use of an extract from certain species of red algae, highlighting its role as a gelling agent in microbiology and food preparation. It is widely used in laboratories as a non-specific medium to cultivate bacteria, fungi, and some algae.

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5 questions

Show all answers

1.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

What is the source of the extract discussed in the video?

Brown algae

Blue-green algae

Green algae

Red algae

2.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

In which fields is the extract used as a gelling agent?

Astronomy and physics

Microbiology and food preparation

Botany and zoology

Geology and meteorology

3.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

What is a common use of the extract outside of laboratories?

As a fertilizer

As a food preservative

As a gelling agent in food preparation

As a cleaning agent

4.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

What is the primary function of the extract in laboratories?

To enhance color

To act as a nutrient source

To serve as a non-specific medium

To provide structural support

5.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

Which organisms can be cultivated using this extract in labs?

Bacteria, fungi, and some algae

Insects and reptiles

Viruses and bacteria

Plants and animals

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