Business
Engineering
Math
Science
Social Science
Biology: The Unity and Diversity o...
Biology: The Unity and Diversity o...
Stomata close in response to ________.
- a. ABA
- b. nitric oxide
- c. bacterial flagellin
- d. all of the above
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.
Reason for correct answer: Stomata are the small opening present in the epidermal layer of leaves, stem, and other organs of a plant body. Its opening and closure has a very significant role in the plant life. During drought, plants would be in scarcity for water. For ensuring the minimal loss of water through stomata, the plant starts to produce abscisic acid hormone that in turn triggers the sudden production of nitric oxide. Going through many other physiological reactions, the stomatal opening gets closed finally. The presence of any bacterial flagellin inside the plant body also triggers the closure of stomatal pore.
Option d. is given as āall of the aboveā. Since stomatal opening in the epidermal layer of leaves and stem in a plant body is closed by the action of abscisic acid and nitric oxide and also by the presence of a bacterial flagellin, option d. is the correct answer.
Reasons for incorrect answer:
Option a...
Chapter 30 Solutions
Additional Science Solutions
Find more solutions based on key concepts
Show solutions addWhat are the mechanisms by which viruses enter animal cells?
Biology (MindTap Course List)
On average, young men in the United States obtain percent of their calories from beverages. a. 12 b. 22 c. 32 d...
Nutrition: Concepts and Controversies - Standalone book (MindTap Course List)
A student gently drops an object weighing 15.8 g into an open vessel that is full of ethanol, so that a volume ...
General Chemistry - Standalone book (MindTap Course List)
Round off each of the following numbers to the indicated number of significant digits. 0.75555 to four digits 2...
Introductory Chemistry: A Foundation
You've noticed the abundance of gluten-free foods on the grocery store shelves. The demand for gluten-free prod...
Understanding Nutrition (MindTap Course List)
The radius of a circle is measured to be (10.5 0.2) m. Calculate (a) the area and (b) the circumference of the...
College Physics
A cyclometer is a device mounted on a bicycle that records and displays trip information such as elapsed time, ...
Inquiry into Physics
Metallic molybdenum can be produced from the mineral molybdenite, MoS2. The mineral is first oxidized in air to...
Chemistry: An Atoms First Approach
How does a corridor differ from a patch?
Fundamentals of Physical Geography
Find the components of vtot along a set of perpendicular axes rotated 30Ā° counterclockwise relative to those in...
College Physics
Calculate the molar mass of each hydrated compound. Note that the water of hydration is included in the molar m...
Chemistry & Chemical Reactivity
What makes up a system of units?
An Introduction to Physical Science
The coefficients in the chemical reaction products give us a relationship between which of the following: a. g...
Chemistry In Focus
Why do unrelated children with a disorder such as Down syndrome resemble each other more closely than they do t...
Human Heredity: Principles and Issues (MindTap Course List)
Only angiosperms produce_______. a. pollen c. fruits b. seeds d. all of the above
BIOLOGY:CONCEPTS+APPL.(LOOSELEAF)
In a mitochondrion, where are the electron transport systems and enzymes required for ATP formation located?
Human Biology (MindTap Course List)
Discuss Concepts Irrigation is widely used in dryer areas of the United States to support agriculture. In those...
Biology: The Dynamic Science (MindTap Course List)
Why are the seasons reversed in the Southern Hemisphere relative to the Northern Hemisphere?
Horizons: Exploring the Universe (MindTap Course List)
17-73 Alcohols can be prepared by the acid-catalyzed hydration of alkenes (Section 12-6B) and by the reduction ...
Introduction to General, Organic and Biochemistry
7.35 Which one of the following contains botb ionic and covalent bonds? (a) BaCO3 , (b) MgCl2 , (c) BaO , (d) H...
Chemistry for Engineering Students
Case 2 4. As the airway resistance increased in this case, the alveoli distal to the bronchial constriction req...
Cardiopulmonary Anatomy & Physiology
The American Diabetes Association recommends that women with diabetes during pregnancy monitor urine glucose an...
Nutrition Through The Life Cycle
A sample of H2C2O4.2H2O of mass 3.35 g is heated to drive off the waters of hydration (designated separately in...
Chemistry for Engineering Students
Use Table 17.1 to answer the following questions. Use LT (for is less than), GT (for is greater than), EQ (for ...
Chemistry: Principles and Reactions
The validation of the statement that rotational spectrum of I2 showing the J=200āJ=201 transition is predicted ...
Physical Chemistry
68. The figure below represents the decay of N-16 by alpha emission. Count the protons (red) and neutrons (gray...
Chemistry In Focus
In what ways are the physical properties of alkenes similar to those of alkanes?
Chemistry for Today: General, Organic, and Biochemistry
The potential energy of a system of two particles separated by a distance r is given by U(r) = A/r, where A is ...
Physics for Scientists and Engineers
Which of the following statements concerning the lock-and-key model for enzyme activity in incorrect? a. The ac...
General, Organic, and Biological Chemistry
This case study is about appropriate nutrition interventions, monitoring, and evaluation within the Nutrition C...
Nutrition Through the Life Cycle (MindTap Course List)
If the ecological footprint per person of a country or the world is larger than its biological capacity per per...
Environmental Science (MindTap Course List)
Section 1.4 What is the key concept for this section? What is an environmentally sustainable society? What is n...
Environmental Science (MindTap Course List)
(a) If an equation is dimensionally correct, does this mean that the equation must be true? (b) If an equation ...
College Physics
Hydroxylation of cis-2-butene with 0s04 yields a different product than hydroxylation of trans-2-butene. Draw t...
Organic Chemistry
All but one species of large-billed birds native to New Zealands tropical forests are now extinct Numbers of th...
Biology: The Unity and Diversity of Life (MindTap Course List)
Draw a condensed structural formula for each of the following unsaturated hydrocarbons. a. Propylene b. Methyle...
Organic And Biological Chemistry
In nuclear fission, a nucleus of uranium-238, which contains 92 protons, can divide into two smaller spheres, e...
Physics for Scientists and Engineers, Technology Update (No access codes included)
