IB Biology SL C4.2.6 Autotrophs As Self Feeders Questions

Autotrophs synthesize carbon compounds from simple inorganic substances, using external energy to fix carbon and build biomass. In IB Biology SL C4.2.6, practise distinguishing autotrophs from heterotrophs and identifying producers as the source of carbon compounds for primary consumers.

Exam points

Distinguish autotrophs, which synthesize organic compounds from inorganic substances using light or chemical energy, from heterotrophs, which obtain organic compounds from other organisms.
Identify producers as the organisms that convert carbon into a form available to primary consumers.

[Maximum number: 1]

Food chains combine to form food webs in an ecosystem.

Define the term autotroph.

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IB Biology SL C4.2.6 Autotrophs As Self Feeders Questions question 1