Study Guide for Campbell Biology
11th Edition
ISBN: 9780134443775
Author: Lisa A. Urry, Michael L. Cain, Steven A. Wasserman, Peter V. Minorsky, Jane B. Reece, Martha R. Taylor, Michael A. Pollock
Publisher: PEARSON
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Textbook Question
Chapter 37, Problem 2SYK
What are the similarities and differences between root nodules and mycorrhizae? How is each beneficial to plants?
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In a practice known as crop rotation, farmers alternate a crop of legumes (plants like beans, whose roots bear nodules containing Rhizobium) with a crop of non- legumes. What is the benefit of this practice?
Which of the following statements are true of the stomata on the leaves of vascular plants? A) They regulate intake of carbon dioxide needed for photosynthesis.B) They regulate release of oxygen to the air.C) They regulate loss of water.D) They are able to open or close depending on environmental conditions.E) They regulate the absorption of light by chlorophyll.
Which of the following explains why pea plants in high soil nitrogen conditions have
so few rhizobial nodules on their roots?
When there is already high soil nitrogen there is a very large cost to having
rhizobial nodules.
The rhizobia bacteria in the nodules fix nitrogen when there isn't enough in the
soil, so when there is already high soil nitrogen there is no advantage for the pea
plant to expend the extra energy housing the rhizobia.
The rhizobia bacteria in the nodules use nitrogen when there isn't enough in the
soil, so in conditions of high soil nitrogen the plant tries to exclude the rhizobia
to keep the nitrogen for itself.
When there is already high soil nitrogen there is no benefit to the plant to
having rhizobial nodules, which can rob the plant of the high nitrogen supplies
so that the rhizobia bacteria do not have to fix the nitrogen themselves.
Chapter 37 Solutions
Study Guide for Campbell Biology
Ch. 37 - Describe the characteristics of a fertile soil.Ch. 37 - Prob. 2IQCh. 37 - Prob. 3IQCh. 37 - Prob. 4IQCh. 37 - Prob. 5IQCh. 37 - Prob. 6IQCh. 37 - Prob. 7IQCh. 37 - Prob. 1SYKCh. 37 - What are the similarities and differences between...Ch. 37 - The most fertile type of soil is usually a. sand,...
Ch. 37 - Which of the following is not a principle of...Ch. 37 - Prob. 3TYKCh. 37 - Which soil component is associated with higher...Ch. 37 - Prob. 5TYKCh. 37 - Prob. 6TYKCh. 37 - Prob. 7TYKCh. 37 - Prob. 8TYKCh. 37 - Prob. 9TYKCh. 37 - Nitrogenase a. is an enzyme complex that reduces...Ch. 37 - Prob. 11TYKCh. 37 - Prob. 12TYKCh. 37 - The nitrogen content of some agricultural soils...Ch. 37 - Using a technique called metagenomics, researchers...Ch. 37 - Prob. 15TYK
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- The specific relationship between a legume and its mutualisticRhizobium strain probably depends on(A) each legume having a chemical dialogue with a fungus.(B) each Rhizobium strain having a form of nitrogenase thatworks only in the appropriate legume host.(C) each legume being found where the soil has only theRhizobium specific to that legume.(D) specific recognition between chemical signals and signalreceptors of the Rhizobium strain and legume species.arrow_forward7. a)Tea plants contain several chemical compounds, including tannins and caffeine. What function do both tannins and caffeine perform for tea leaves? b)By what process does water enter the root cells of a plant? c)The blade of the leaf is attached to the stem by a stoma. Is this true or false?arrow_forwardHow plant disease occurs?arrow_forward
- What does Rhizobium get from its host legume? What does the legume get from its Rhizobium?arrow_forwardHow is primary growth different from secondary growth?arrow_forwardWhat are anions? What are cations? How do they interact with the soil and root hairs differently? What special process must plants do in order to absorb cations?arrow_forward
- Choose the correctly matched among the following A) Epidermal tissue system – Root hairs B) Collenchyma – Dead cells C) Fibres – Water conduction D) Meristem – Fruit wallsarrow_forwardYour scheduled patrolling of com field has collected various leaves samples with symptoms stated as below. Use these symptoms to explain about the type of nutrient deficiency to your worker. (i) Burning of leaf tip and edge. (ii) Reddish purple leaf edge on lower leaves. (iii) Interveinal chlorosis. (iv) Wrinkled and unopened leaf. (v) Some of the nutrient deficiency symptoms were ohserved on new growth but some were observed at the lower leaves. How would you explain this phenomenon to your worker? (vi) What are the field guides to distinguish between biotic and abiotic causes of leaf abnormalities?arrow_forwardFigure shows several chemicals that carry nitrogen up from the roots to the rest of the plant. What is the unusual feature of these chemicals that make them good carriers?arrow_forward
- Describe the unique features of the following specialized roots in plants. What benefit do plants derive from this type of specialized roots - Mycorrhizae - Root nodulesarrow_forward5. 1) Which of the following would not be found in a leaf? * Mark only one oval. A) parenchyma B) epidermis C) stomata D) cork cambiumarrow_forwardWhich of the following is NOT a function of the stem in a plant? Which of the following is NOT a function of the stem in a plant? A) absorb water B) store nutrients C) produce new plant cells D) support flowers and leavesarrow_forward
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