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Paper 4Theory (Extended)3 marks
Understanding the roles of sources and sinks in plants is important for explaining how substances like sucrose and amino acids are distributed.
Description
Sources and Sinks in Plants
Sources are regions in plants that produce and release sucrose or amino acids. Sinks are regions that use or store these substances.
- a[1]
Identify a source in a plant and state what it produces and releases.
Aim for approximately 1 distinct marking point.
- b[2]
Identify a sink in a plant and describe its role.
Aim for approximately 2 distinct marking points.
0 of 2 parts answered
Answer every part before opening the mark scheme.
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