Transport Across Cell Membranes

Transport Across Cell Membranes

Assessment

Interactive Video

Biology, Health Sciences, Science, Chemistry

11th Grade - University

Hard

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Mr. Anderson's video on Biology Essentials covers transport across cell membranes, focusing on passive and active transport. Passive transport includes diffusion and osmosis, which do not require energy. Facilitated diffusion involves proteins to move substances along their gradient. Active transport, requiring ATP, includes the sodium-potassium pump and large-scale movements like endocytosis and exocytosis. The video explains these processes with examples, highlighting their importance in biological systems.

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10 questions

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1.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

What is the primary difference between passive and active transport across cell membranes?

Neither requires energy.

Both require energy but in different amounts.

Passive transport requires energy, while active transport does not.

Active transport requires energy, while passive transport does not.

2.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

Which process allows oxygen to enter the body and carbon dioxide to exit without energy?

Osmosis

Diffusion

Facilitated diffusion

Active transport

3.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

What happens to a cell in a hypertonic solution?

It gains water and swells.

It bursts due to excess water.

It remains unchanged.

It loses water and shrivels.

4.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

Which type of diffusion involves the movement of water across a semi-permeable membrane?

Facilitated diffusion

Osmosis

Active transport

Simple diffusion

5.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

What is required for facilitated diffusion to occur?

A semi-permeable membrane

A concentration gradient

A protein to assist in transport

Energy in the form of ATP

6.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

Which protein is involved in the facilitated diffusion of glucose?

Sodium-potassium pump

Glucose transporter (GLUT)

Aquaporin

ATP synthase

7.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

What is the main function of the sodium-potassium pump?

To facilitate osmosis

To maintain a gradient of sodium and potassium ions

To transport water across membranes

To move glucose into cells

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