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

Unicellular organisms carry out all life processes within one cell. Review nutrition, metabolism, response, excretion, homeostasis, growth and reproduction, using Amoeba, Chlamydomonas and Escherichia coli as examples.

Exam points

State that unicellular organisms carry out all life processes within one cell.
Identify Amoeba, Chlamydomonas and Escherichia coli as examples of unicellular organisms.
Identify nutrition, metabolism, response, excretion, homeostasis, growth and reproduction as life processes carried out by unicellular organisms.

[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?

Nutrition

Reproduction

Homeostasis

Metabolism

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IB Biology SL A2.2.7 Processes of Life in Unicellular Organisms Questions question 1