CAMPBELL BIOLOGY,VOL.II >CUSTOM<
17th Edition
ISBN: 9781323803677
Author: Urry
Publisher: PEARSON
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Chapter 35.4, Problem 4CC
Summary Introduction
To explain: Whether the tree will die in weeks or in days, if a complete ring of bark around a tree trunk is removed.
Concept introduction:
In woody plants, bark refers to the group of tissues that are present outside the vascular cambium. The bark constitutes secondary phloem and periderm along with its older layers.
There are two layers of bark namely inner bark and outer bark. The inner bark constitutes the secondary phloem (produced by the vascular cambium). The outer bark contains cork cells (produced by cork cambium). The cork cells produce suberin. The suberin makes trunk and roots impermeable to water and gases. The inner living tissue exchange gases through lenticels, opening in barks.
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B. LEAF ADAPTATION
The main function of the leaf is in the processes of photosynthesis and
transpiration. Apart from these functions, leaf is sometimes adapted to
perform other functions.
Examples of leaf adaptations are for:
a)
Support, which could be seen by the presence of tendrils
b)
Catching insects, by having cup-liked shape of hairs sensitive to
touch
c)
Reproduction, by having meristematic cells able to produce new
shoots that will go on to become new individual plants
d)
Food and water storage, especially found in plants living in dry areas
where water is scarce (for example succulent plants, having leaf storing
food and water)
e)
Floatation, for plants living on the water surface, their leaves in
general will have air openings on tissues (used for floating) usually
found on leaf petiole
f)
Protection, by having leaves completely or partially modified as thorns
Instruction:
a)
1. Search for ONE plant species with the following leaf adaptations
2. Give their scientific names…
Give explain.
What is the conclusion?
Chapter 35 Solutions
CAMPBELL BIOLOGY,VOL.II >CUSTOM<
Ch. 35.1 - Prob. 1CCCh. 35.1 - WHAT IF? If humans were photoautotrophs, making...Ch. 35.1 - Prob. 3CCCh. 35.2 - Prob. 1CCCh. 35.2 - Prob. 2CCCh. 35.2 - Prob. 3CCCh. 35.3 - Prob. 1CCCh. 35.3 - Prob. 2CCCh. 35.3 - Prob. 3CCCh. 35.4 - A sign is hammered into a tree 2 m from the tree's...
Ch. 35.4 - Prob. 2CCCh. 35.4 - Would you expect a tropical tree to have distinct...Ch. 35.4 - Prob. 4CCCh. 35.5 - How can two cells in a plant have vastly different...Ch. 35.5 - Prob. 2CCCh. 35.5 - Prob. 3CCCh. 35 - Prob. 35.1CRCh. 35 - Prob. 35.2CRCh. 35 - Prob. 35.3CRCh. 35 - Whht advantages did plants gain from the evolution...Ch. 35 - Prob. 35.5CRCh. 35 - Most of the growth of a plant body is the result...Ch. 35 - Prob. 2TYUCh. 35 - Prob. 3TYUCh. 35 - The phase change of an apical meristem from the...Ch. 35 - Supposc a flower had normal expression of genes A...Ch. 35 - Prob. 6TYUCh. 35 - Which of the following would not be seen in a...Ch. 35 - Prob. 8TYUCh. 35 - EVOLUTION CONNECTION Evolutionary biologists have...Ch. 35 - SCIENTIFIC INQUIRY Grasslands typically do not...Ch. 35 - SCIENCE, TECHNOLOGY, AND SOCIETY Hunger and...Ch. 35 - WRITE ABOUT A THEME: ORGANIZATION In a short essay...Ch. 35 - SYNTHESIZE YOUR KNOWLEDGE This stained light...
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