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AS & A Level Biology - 9700 Paper 2 2020 Spring Zone 2
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Topic: CH7 - TRANSPORT IN PLANTS
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MCQ
CH7 - TRANSPORT IN PLANTS
Which row correctly identifies sinks for sucrose transported by mass flow in plants? [Table_1]
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CH7 - TRANSPORT IN PLANTS
The diagram shows a transverse section through a transport tissue in a plant.Which row correctly identifies cell 1 and cell 2?
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CH7 - TRANSPORT IN PLANTS
The electron micrograph shows a longitudinal section of part of the stem of a plant. What is the name of the structure labelled X?
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CH7 - TRANSPORT IN PLANTS
Which statement correctly describes the movement of solutes in the symplast pathway?
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CH7 - TRANSPORT IN PLANTS
Which substance makes xylem vessel walls impermeable to water?
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CH7 - TRANSPORT IN PLANTS
Which statement helps to explain why water molecules are forced to move through xylem vessel elements as a consequence of transpiration?
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MCQ
CH7 - TRANSPORT IN PLANTS
Which statement correctly identifies the movement of sucrose and amino acids in plant vascular tissue?
Winter
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CH7 - TRANSPORT IN PLANTS
Xylem vessel elements are specialised cells that are adapted for the transport of water.Which statement correctly matches an adaptation of a xylem ves...
Winter
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MCQ
CH7 - TRANSPORT IN PLANTS
Which statement correctly describes the association between a companion cell and its sieve tube cell?
Spring
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MCQ
CH7 - TRANSPORT IN PLANTS
A maize seedling was grown in soil that contained lanthanum ions labelled with a chemical that fluoresces under ultraviolet light. The diagram represe...
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Theory
CH7 - TRANSPORT IN PLANTS
(a) The structure of a phloem sieve tube element is adapted to its function.Each of explanations A to F describes how a particular structural feature ...
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CH3 - ENZYMES
Phosphatidate phosphatase (PAP) enzymes have an important role in lipid metabolism.The reaction catalysed by PAP is shown in Fig. 2.1.Experiments were...
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CH8 - TRANSPORT IN MAMMALS
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CH9 - GAS EXCHANGE AND SMOKING
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CH11 - IMMUNITY
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CH1 - CELL STRUCTURE
Fig. 6.1 is a transmission electron micrograph of a plant parenchyma cell.(a) The external environment of the parenchyma cell has a higher water poten...
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CH14 - HOMEOSTASIS
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CH16 - INHERITED CHANGE
Flowers of the common morning-glory plant, Ipomoea purpurea, can have several different phenotypes. An example of these flowers is shown in Fig. 3.1.[...
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CH16 - INHERITED CHANGE
The rainbow trout, Oncorhynchus mykiss, is a fish that is bred in commercial fish farms. Rainbow trout that have a blue-silver colour are sold at a hi...
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