32 - Biology: Concepts and Connections, 6e (Campbell)...

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Unformatted text preview: Biology: Concepts and Connections, 6e (Campbell) Biology: Concepts and Connections, 6e (Campbell) Chapter 32 1 Plant Nutrition and Transport Multiple-Choice Questions 2) In an attempt to find out where a growing plant gets its mass, van Helmont planted a willow seedling in a pot of soil. After five years, the willow weighed 76.8 kg, and the soil had lost 0.06 kg of weight. Only water had been added to the pot. Which of the following conclusions should van Helmont have drawn? A) Plants get their mass from water. B) Plants get their mass from water and air. C) Plants get their mass from water and atmospheric CO 2 . D) Plants make carbon compounds using carbon, hydrogen, and oxygen. E) Plants get all or almost all of their mass from a source other than soil. Answer: E Topic: 32.1 Skill: Conceptual Understanding 3) Where do plants get most of their mass? A) from chemical elements in the soil B) from nitrogen in the atmosphere C) from carbon dioxide in the atmosphere D) from water, as van Helmont predicted E) from organic molecules taken up from the soil Answer: C Topic: 32.1 Skill: Factual Recall 4) What is the physical barrier in the root that regulates the flow of water to xylem via cell walls? A) phloem B) epidermis C) Casparian strip D) cortex E) plasmodesmata Answer: C Topic: 32.2 Skill: Factual Recall 5) ________ increase the surface area of roots. A) Plasmodesmata B) Cell walls and endoplasmic reticulum C) Mycorrhizae D) Root hairs E) Root hairs and mycorrhizae Answer: E Topic: 32.2 Skill: Factual Recall 6) Which of the following options correctly lists the sequence of structures through which water passes into a root? A) guard cell, endodermis, cortex, xylem B) root hair, cortex, xylem, endodermis C) epidermis, endodermis, guard cell, xylem D) epidermis, cortex, endodermis, xylem E) root hair, xylem, endodermis, phloem Answer: D Topic: 32.2 Skill: Factual Recall 7) How do mineral ions get into the xylem cells of a plant root by way of the intracellular route? A) They percolate between root cells to the xylem and then enter a xylem vessel. B) They are taken directly up from the soil by xylem cells. C) They are actively taken in to the xylem of root hairs. D) They are taken up by root hair cells and transferred from cell to cell via plasmodesmata. E) They move in solution through cell walls of the endodermis. Answer: D Topic: 32.2 Skill: Factual Recall 8) Which of the following produces the greatest amount of transpiration-cohesion-tension force? A) the push of water from the soil B) pumping by xylem cells C) the pull on water from dry air D) the cohesive force of water E) the osmotic pull of solutes on water from the soil Answer: C Topic: 32.3 Skill: Factual Recall 9) In the...
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32 - Biology: Concepts and Connections, 6e (Campbell)...

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