1.1. Cell structure and function
A subsection of Biology, 5090, through 1. Cells
Listing 10 of 107 questions
shows the cell membrane of an animal and a plant cell. animal cell plant cell On , draw and label one other structural feature that is found in both cells, two features found in a plant cell but not in an animal cell. Examiner’s Use Table 1.1 shows the average amounts of protein, fat and carbohydrate found in some plant and some animal tissues (expressed as a percentage of the total mass). Table 1.1 protein fat carbohydrate plant tissues animal tissues Explain why there is a high percentage of carbohydrate in the plant tissues. Name an animal tissue that would have much more than the 1% carbohydrate shown in Table 1.1. Explain your choice of tissue. tissue explanation Suggest reasons for the differences in the protein and in the fat content of the plant and animal tissues. protein fat
5090_s06_qp_2
THEORY
2006
Paper 2, Variant 0
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In , the line drawn represents the cell membrane of a plant cell. On draw, name and label a structure that gives the cell its rigid shape, a structure that contains chromosomes, a structure that contains varying amounts of water, ions and sugars. List three structural changes that must occur in young, unmodified plant cells as they develop into xylem tissue. A small, leafy branch is cut from a tree. After some hours, the stem of the branch remains firm but the leaves become limp. Suggest an explanation for this. stem remains firm leaves become limp
5090_s12_qp_22
THEORY
2012
Paper 2, Variant 2
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Questions Discovered
107