Cell Transport and Membranes

Cell Transport and Membranes

Assessment

Flashcard

Biology

9th - 10th Grade

Hard

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15 questions

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1.

FLASHCARD QUESTION

Front

What does it mean that the cell membrane is selectively permeable?

Back

It means that certain things can enter while others cannot.

2.

FLASHCARD QUESTION

Front

What is facilitated diffusion?

Back

It is a process where special proteins help move particles across the cell membrane without the need for energy.

3.

FLASHCARD QUESTION

Front

What cellular structure controls what substances may enter or leave cells?

Back

The cell membrane.

4.

FLASHCARD QUESTION

Front

What term describes a substance that is 'water fearing'?

Back

Hydrophobic.

5.

FLASHCARD QUESTION

Front

What does it mean for a membrane to be selectively (or semi) permeable?

Back

It means that some molecules can cross the membrane while others cannot.

6.

FLASHCARD QUESTION

Front

What is the primary function of the cell membrane?

Back

To maintain homeostasis by regulating the entry and exit of substances.

7.

FLASHCARD QUESTION

Front

What is the difference between active transport and passive transport?

Back

Active transport requires energy to move substances against their concentration gradient, while passive transport does not.

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