CAMPBELL BIOLOGY,VOL.II >CUSTOM<
CAMPBELL BIOLOGY,VOL.II >CUSTOM<
17th Edition
ISBN: 9781323803677
Author: Urry
Publisher: PEARSON
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Chapter 39, Problem 4TYU

How may a plant respond to severe heat stress?

(A) by reorienting leaves to increase evaporative cooling

(B) by creating air tubes for ventilation

(C) by producing heat-shock proteins, which may protect the plant's proteins from denaturing

(D) by increasing the proportion of unsaturated fatty acids in cell membranes, reducing their fluidity

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Plants under biotic stress will rapidly increase concentration of reactive oxygen species (ROS). (i) The above oxidative burst will happen at cellular level. Describe the observable symptoms by naked eyes and explain the symptoms development at cellular level. (ii) Explain the roles of ROS in plant defense. (iii) Which part of plant cell initiates oxidative burst?
(a) The major energy storage compound ofanimals is fats (except in muscles). Why would this be advantageous? (b) Why don’t plants use fats/oils as their major energystorage compound?
(a) define micro and macro nutrients in plant and give any three names of each? (B) write the function and deficiency symptoms of nitrogen and iron in plant?

Chapter 39 Solutions

CAMPBELL BIOLOGY,VOL.II >CUSTOM<

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How do Plants Handle Stress?; Author: Alex Dainis;https://www.youtube.com/watch?v=TYsnveEHqec;License: Standard Youtube License