Investigating Biology Laboratory Manual (9th Edition)
9th Edition
ISBN: 9780134473468
Author: Lisa A. Urry, Michael L. Cain, Steven A. Wasserman, Peter V. Minorsky, Jane B. Reece, Judith Giles Morgan, M. Eloise Brown Carter
Publisher: PEARSON
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Chapter 36, Problem 3TYU
Summary Introduction
Introduction: Sugars are made by plants during photosynthesis, which are carried throughout the plant by the vascular system. Phloem is responsible for carrying out dissolved sugars from leaves to storage sites of the plants. Sugar moves from the area of high osmotic concentration and high water pressure known as sources to the region of low osmotic concentration and low pressure of water known as sinks.
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(a) Plants transport organic solutes from the source to the sink.
Giving examples explain what is meant by the terms 'source and
sink.
(b) Describe how sugars produced during photosynthesis in the
leaves are transported to the roots by MASS FLOW (numbered
steps may help).
(c) Explain how the root of a plant an act as a source and a sink at
different times. (
Movement of phloem sap from a source to a sink(A) occurs through the apoplast of sieve-tube elements.(B) depends ultimately on the activity of proton pumps.(C) depends on tension, or negative pressure potential.(D) results mainly from diffusion.
The vascular system in piants is made up of two tissues: phloem and xylem.
(a) Mark on the image above the positions of the xylem and phloem.
(b) Differentiate between these vascular tissues.
(c) Identify and describe a recent technology used to determine plant structure.
Chapter 36 Solutions
Investigating Biology Laboratory Manual (9th Edition)
Ch. 36.1 - Why is long-distance transport important for...Ch. 36.1 - Some plants can detect increased levels of light...Ch. 36.1 - WHAT IF? If you prune a plant's shoot tips, what...Ch. 36.2 - If a plant cell immersed in distilled water has a...Ch. 36.2 - Prob. 2CCCh. 36.2 - How would the long-distance transport of water be...Ch. 36.2 - Prob. 4CCCh. 36.3 - Prob. 1CCCh. 36.3 - WHAT IF? Suppose an Arabidopsis mutant lacking...Ch. 36.3 - MAKE CONNECTIONS How are the Casparian strip and...
Ch. 36.4 - Prob. 1CCCh. 36.4 - Prob. 2CCCh. 36.4 - WHAT IF? If you buy cut flowers, why might the...Ch. 36.4 - Prob. 4CCCh. 36.5 - Prob. 1CCCh. 36.5 - Prob. 2CCCh. 36.5 - Prob. 3CCCh. 36.5 - WHAT IF? Apple growers in Japan sometimes make a...Ch. 36.6 - How do plasmodesmata differ from gap junctions?Ch. 36.6 - Prob. 2CCCh. 36.6 - WHAT IF? Suppose plants were genetically modified...Ch. 36 - How did the evolution of xylem and phloem...Ch. 36 - Is xylem sap usually pulled or pushed up the...Ch. 36 - Prob. 36.3CRCh. 36 - Prob. 36.4CRCh. 36 - Prob. 36.5CRCh. 36 - By what mechanisms is symplastic communication...Ch. 36 - Prob. 1TYUCh. 36 - Prob. 2TYUCh. 36 - Prob. 3TYUCh. 36 - Photosynthesis ceases when leaves wilt, mainly...Ch. 36 - Prob. 5TYUCh. 36 - A plant cell with a of -0.65 MPa maintains a...Ch. 36 - Compared with a cell with few aquaporin proteins...Ch. 36 - Prob. 8TYUCh. 36 - EVOLUTION CONNECTION Large brown algae called...Ch. 36 - SCIENTIFIC INQUIRY INTERPRET THE DATA A Minnesota...Ch. 36 - SCIENTIFIC INQUIRY Cotton plants wilt within a few...Ch. 36 - WRITE ABOUT A THEME: ORGANIZATION Natural...Ch. 36 - Prob. 13TYU
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- During an experiment, a student covers all the stomata of a plant with nail polish, sealing them shut a)Predict how this would affect water transport b)How would this affect transport in the phloem?arrow_forwardWhich of the following is a mechanism of water movement in xylem that is responsible for guttation? (a) pressure–flow (b) tension–cohesion (c) root pressure (d) active transport of potassium ions into guard cells (e) transpirationarrow_forwardWhich of the following is a mechanism of water movement in xylem that combines the evaporative pull of transpiration with the cohesive and adhesive properties of water? (a) pressure– flow (b) tension–cohesion (c) root pressure (d) active transport of potassium ions into guard cells (e) guttationarrow_forward
- The apoplast is (a) a layer of cells that surround the vascular region in roots (b) the layer of cells just inside the endodermis (c) a system of interconnected plant cell walls through which water moves (d) the central cylinder of the root that comprises the vascular tissues (e) a continuum of cytoplasm of many cells, all connected by plasmodesmataarrow_forwardExplain the difference between symplast and transmembrane water transport pathways in plants. (i) (ii) Explain positive hydrostatic pressure in the root and conditions causing the root pressure. What is the phenomenon likely caused by this root pressure? (iii) Describe the phenomenon observed in Question 1 c) (ii) with inclusion of plant structures involved.arrow_forwardWhich of the following is a mechanism of phloem transport in which dissolved sugar is moved by means of a pressure gradient that exists between the source and the sink? (a) pressure–flow (b) tension–cohesion (c) root pressure (d) active transport of potassium ions into guard cells(e) guttationarrow_forward
- (a) There are two components to the conducting system in secondary tissues, one responsible for conduction longitudinally (root to shoot and vice versa) and the other responsible for lateral conduction. Name these two systems. (b) Which type of vascular cambium initial gives rise to each of the components named above.arrow_forwardWhat's the function of phloem? 1.) it conducts sugars, amino acids, and hormones throughout the plant? 2.) it conducts water, dissolves minerals, and inorganic ions from the roots 3.) it provides structural support in the form of tracheid and vessel elements 4.) it allows water to evaporate into the environmentarrow_forward7. The vascular tissue that transports water and minerals from the soil to the rest of the plant is the (a) phloem. (b) phlegm. (c) leaf. (@) хуlет. 8. The vascular tissue that transports sugars from photosynthetic tissues to the rest of the plant is (a) phloem. (b) phlegm. (c) leaf. (d) хуlеm. 9. In most land plants, the generation is the dominant one (a) diploid sporophyte (b) diploid gametophyte (c) haploid sporophyte (d) haploid gametophyte 10. In seed plants, the helps transfer of sperm from the pollen grain to the egg. (a) sepal (b) рetal (c) tuberous ovule (d) pollen tubearrow_forward
- A plant gets rid of excess water through transpiration. Which is a method used by plants to get rid of solid waste products? (A) Shortening of stem (B) Dropping down of fruits (C) Shedding of yellow leaves (D) Expansion of roots into the soil 8.arrow_forwardWhich of the following is an adaptation thatenhances the uptake of water and minerals byroots?(A) mycorrhizae(B) pumping through plasmodesmata(C) active uptake by vessel elements(D) rhythmic contractions by cells in the root cortexarrow_forwardWhich structure or compartment is part of the symplast?(A) the interior of a vessel element(B) the interior of a sieve tube(C) the cell wall of a mesophyll cell(D) an extracellular air spacearrow_forward
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