Biology Video Essentials 52: Cellular Variation

Biology Video Essentials 52: Cellular Variation

Assessment

Interactive Video

Biology, Science

9th - 12th Grade

Hard

Created by

Ethan Morris

FREE Resource

Mr. Anderson's video tutorial on cellular variation highlights the importance of diversity in cells. He explains how variation in molecules like phospholipids and genes can enhance cellular success. The video covers chlorophyll's role in photosynthesis, the heterozygote advantage in sickle cell disease, and gene duplication's contribution to evolutionary novelty, using examples like winter wheat and antifreeze proteins in eelpout fish.

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10 questions

Show all answers

1.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

What is the primary role of chlorophyll in plants?

To convert sunlight into usable energy

To reflect red light

To store water

To absorb green light

2.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

Why do plants appear green?

They do not absorb any light

They reflect green light

They absorb green light

They emit green light

3.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

How do phospholipids help winter wheat survive cold temperatures?

By forming a solid barrier

By increasing saturated fats

By increasing unsaturated fats

By reducing water content

4.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

What is the significance of unsaturated fatty acids in phospholipids?

They decrease the membrane's permeability

They allow the membrane to be more flexible

They make the membrane more rigid

They increase the membrane's thickness

5.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

What is heterozygote advantage?

Having a single gene mutation

Having no genetic variation

Having two different genes that provide a survival benefit

Having two identical genes

6.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

How does the sickle cell trait provide an advantage in malaria-prone regions?

It enhances oxygen transport

It prevents malaria infection

It increases red blood cell count

It reduces blood pressure

7.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

What is the concept of gene duplication?

Creating a new gene from scratch

Deleting a gene to prevent mutations

Copying a gene to perform the same function

Copying a gene to allow for new functions

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