Campbell Biology in Focus
3rd Edition
ISBN: 9780134710679
Author: Lisa A. Urry, Michael L. Cain, Steven A. Wasserman, Peter V. Minorsky, Rebecca Orr
Publisher: PEARSON
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Question
Chapter 28.3, Problem 2CC
Summary Introduction
To determine:
Whetherthe mesophyll of a plant species that has vertically oriented leaves could be divided into spongy and palisade layer.
Introduction:
A leaf comprises stomata for the exchange of CO2 and O2 between the surrounding air and inside the leaf. Stomata are the pores that can interrupt the epidermis of leaves. The entire area of stomata consists two epidermal cells: guard cells and mesophyll.
The mesophyll is a ground tissue of a leaf. Its middle layer is located between upper and lower epidermal layers. Mesophyll consist parenchyma cells for photosynthesis. The mesophyll cells have two distinct layers: palisade and spongy.
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Select one:
O True
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The sporophyte structure in vascular plants is dependent on the gametophyte
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What is the Cohesion-Tension hypothesis? What is the source of energy that creates the tension? Where on the plant does the tension form? What properties of water are important for this hypothesis
Diagram 1: Cross Section of a leaf-cells and structures.
cuticle
-upper epidermis
palisade layer
chloroplasts
vascular bundle
spongy mesophyll
-intercellular chamber
-lower epidermis
stoma
A possible explanation to explain the presence of the stoma structure would be that it
stores extra water the leaf does not need.
allows a passageway for gasses to enter and exit the leaf
makes sugar needed by the cells.
O maximizes the absorption of sunlight energy
O O O O
Chapter 28 Solutions
Campbell Biology in Focus
Ch. 28.1 - Prob. 1CCCh. 28.1 - WHAT IF? If humans were photoautotrophs, making...Ch. 28.1 - Prob. 3CCCh. 28.2 - Prob. 1CCCh. 28.2 - Prob. 2CCCh. 28.2 - Prob. 3CCCh. 28.3 - Prob. 1CCCh. 28.3 - Prob. 2CCCh. 28.3 - Prob. 3CCCh. 28.4 - A sign is hammered into a tree 2 m from the trees...
Ch. 28.4 - Would you expect a tropical tree to have distinct...Ch. 28.4 - Prob. 3CCCh. 28 - Most of the growth of a plant body is the result...Ch. 28 - Prob. 2TYUCh. 28 - Heartwood and sapwood consist of A. bark. B....Ch. 28 - Prob. 4TYUCh. 28 - Which of the following would not be seen in a...Ch. 28 - Prob. 6TYUCh. 28 - SCIENTIFIC INQUIRY Grasslands typically do not...Ch. 28 - Prob. 8TYUCh. 28 - FOCUS ON ORGANIZATION In a short essay (100-150...Ch. 28 - SYNTHESIZE YOUR KNOWLEDGE This stained light...
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