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IB Biology SL A2.2.7 Processes of Life in Unicellular Organisms Questions

Practise IB Biology SL A2.2.7 by identifying nutrition, metabolism, response, homeostasis, growth and reproduction as functions of unicellular life.

Exam points

Identify nutrition, metabolism, response, homeostasis, growth and reproduction as functions carried out by unicellular organisms.
Explain how one unicellular cell performs life functions without specialized tissues, using a named organism or structure.
Compare a named unicellular organism with humans for a life function such as excretion or response.
Identify binary fission as reproduction in a unicellular prokaryote.

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Study A2.2.7—Processes of life in unicellular organisms conceptsOpen the corresponding Concept lesson for explanations, examples and exam connections.

[Maximum number: 1]

Single-celled organisms of the genus Paramecium carry out all functions of life.

Figure for Question IB Biology SL A2.2.7 Processes of Life in Unicellular Organisms Questions question 1 — IB Biology SL

Which functions of life are performed by the contractile vacuole?

A

Nutrition

B

Reproduction

C

Homeostasis

D

Metabolism

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