8.1. Xylem and phloem
A subsection of Biology, 0610, through 8. Transport in plants
Listing 10 of 73 questions
Aphids are insects that feed on the phloem sap in plants. shows a diagram of an aphid with its mouth parts inserted into the stem of a plant. phloem xylem The mouth parts of the aphid reach the phloem tissue of the stem. State the name of the foods the aphid could suck out of the phloem tissue. Explain the role of phloem in plant transport. Use the words source and sink in your answer. shows some of the features of xylem. Describe how xylem is adapted for its functions. Some farmers spray their crops with insecticides to kill pests such as aphids. Explain the benefits of killing pests.
0610_s18_qp_42
THEORY
2018
Paper 4, Variant 2
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