Biology: The Unity and Diversity of Life (MindTap Course List)
15th Edition
ISBN: 9781337408332
Author: Cecie Starr, Ralph Taggart, Christine Evers, Lisa Starr
Publisher: Cengage Learning
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Chapter 30, Problem 11SQ
Summary Introduction
Concept introduction: The minute openings found in the outer layer (epidermis) of stems, leaves, and other organs in a plant body are called stomata. The size of stomatal opening is regulated by a pair of particular parenchymal cells known as guard cells. Gaseous exchange during photosynthesis and water loss during transpiration is mainly through these openings.
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Students have asked these similar questions
The protective layer of cells found on leaf’s upper and lower surfaces is known as the __________.
Select one:
a.
chloroplast
b.
stomate
c.
Cutin
d.
epidermis
e.
none of the listed choices
f.
fiber sheath
g.
cuticle
h.
mesophyll
Closed stomata______ . a. limit gas exchange c. prevent photosynthesis b. permit water loss d. absorb light
With stomata closed, a waterproof cuticle______ . a. minimizes water loss through plant surfaces b. permits gas exchange between the plant and the air c. both a and b
Chapter 30 Solutions
Biology: The Unity and Diversity of Life (MindTap Course List)
Ch. 30 - Volatile Secondary Metabolites in Plant Stress...Ch. 30 - Volatile Secondary Metabolites in Plant Stress...Ch. 30 - Volatile Secondary Metabolites in Plant Stress...Ch. 30 - Prob. 4DAACh. 30 - Prob. 1SQCh. 30 - Prob. 2SQCh. 30 - Prob. 3SQCh. 30 - _______ is the hormone in most rooting compounds....Ch. 30 - Prob. 5SQCh. 30 - Prob. 6SQ
Ch. 30 - Prob. 7SQCh. 30 - Ethylene differs from other hormones in that it...Ch. 30 - Prob. 9SQCh. 30 - Prob. 10SQCh. 30 - Prob. 11SQCh. 30 - Prob. 12SQCh. 30 - Match the hormone with the description. _____...Ch. 30 - Prob. 14SQCh. 30 - Prob. 15SQCh. 30 - Professional gardeners often soak seeds in...Ch. 30 - Photosynthesis sustains plant growth, and inputs...Ch. 30 - Prob. 3CTCh. 30 - Cattle in industrial dairy farms are typically...Ch. 30 - The oat coleoptiles on the left have been...
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- . Which of the following is not a typical plant response to oxygen deficit due to flooding? * A. Aerenchyma formation B. Hyponastic growth of submerged leaves C. Stomatal closure D. Induction of anaerobic stress proteinsarrow_forwardThe activity of lateral meristems_____ older roots and stems. a. lengthens b. thickens c. both a and barrow_forwardAll other factors being equal, tiny hairs near the stomata will _______ transpiration. All other factors being equal, an increase in wind speed will _______ transpiration. Select one: a. decrease, decrease b. increase, decrease c. increase, increase d. decrease, increasearrow_forward
- A waxy cuticle helps land plants_______ . a. conserve water c. reproduce b. take up carbon dioxide d. stand uprightarrow_forwardThrough mycorrhization, a plant obtains important nutrients such as ________. a. phosphorus, zinc, and copper b. phosphorus, zinc, and calcium c. nickel, calcium, and zinc d. all of the abovearrow_forwardWhen guard cells swell,______ . a. transpiration ceases c. stomata open b. sugars enter phloem d. root cells diearrow_forward
- Water evaporation from plant parts is called_______ . a. translocation c. transpiration b. respiration d. tensionarrow_forwardGuard cellsa. are found primarily on the upper surface of leaves.b. open their stomata by shrinking.c. lack chloropolasts.d. close in response to abscisic acid.arrow_forwardLeaf tissue with sunken stomata will have ___ humidity near the stomata and ___ transpiration. Select one: a. increased, decreased b. decreased, increased c. increased, increased d. decreased, decreasedarrow_forward
- Tracheids are part of ______. a. cortex c. phloem b. mesophyll d. xylemarrow_forwardSugar transport from leaves to roots occurs by_______ . a. a pressure gradient inside sieve tubes b. different solutes at source and sink regions c. the pumping force of xylem vessels d. evaporation, tension, and cohesionarrow_forwardWhich of the following descriptions about C4 and CAM plants is not correct? Select one: a. CAM plants use CO2 released from organic compounds during the day b. C4 and CAM plants both close stomata during the day in hot and dry climates. c. in C4 plants, PEP carboxylase present in bundle-sheath cells incorporate CO2 into C4 compounds d. CAM plants fix CO2 at night e. C4 plants use PEP carboxylase to fix CO2 even when CO2 concentrations are lowarrow_forward
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