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Grade 12 Cell Transport & Homeostasis Worksheet with Answers

Grade 12 (US) · Year 13 (UK) · Class 12 (India) · Biology

Unit 1: Cells & EnergyCell ProcessesNGSS HS-LS1-3

Diffusion, osmosis and active transport, and how cells keep stable conditions. This free high school worksheet has 12 questions and a full answer key. Print it or save it as a PDF — every answer is checked by code, not guessed.

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Cell Transport & Homeostasis

Grade 12 · Biology

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Learning goal: Cell Processes · NGSS HS-LS1-3

Directions: Read each question carefully and write your answer on the line.

RememberMoving across membranes

1
A cell is placed in very salty water. What happens to it?
2
What does a hypotonic solution have compared with the cell?
3
What controls what enters and leaves a cell?
4
What is endocytosis?
5
A cell is placed in pure water. What happens to an animal cell?
6
What is diffusion?
7
Why don't plant cells burst in fresh water?
8
Does active transport need energy?
9
What is homeostasis?
10
What is osmosis?
11
Does passive transport need energy?
12
Why do slugs shrivel when salt is put on them?

★ Challenge corner for fast finishers

Why does a spinning ice skater spin faster when she pulls her arms in?

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Free printable worksheets with answer keys · aethelsystems.com/worksheets/biology/12/cell_transport

Answer key (click to show)

1.water leaves and the cell shrinks
2.lower solute concentration (more water)
3.the cell membrane
4.a cell taking in large particles by wrapping its membrane around them
5.water enters and it swells (may burst)
6.movement of particles from high to low concentration
7.the cell wall stops them
8.yes (ATP)
9.keeping stable conditions inside the body or cell
10.diffusion of water across a membrane
11.no
12.water leaves their cells by osmosis
★conservation of angular momentum (challenge corner)

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