Modified Mastering Biology with Pearson eText -- Standalone Access Card -- for Campbell Biology: Concepts & Connections (9th Edition)
9th Edition
ISBN: 9780134641683
Author: Martha R. Taylor, Eric J. Simon, Jean L. Dickey, Kelly A. Hogan, Jane B. Reece
Publisher: PEARSON
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Textbook Question
Chapter 3, Problem 4TYK
Cows can derive nutrients from cellulose because
a. they produce enzymes that recognize the shape of the glucose-glucose bonds and hydrolyze them.
b. they re-chew their cud to break down cellulose fibers.
c. their digestive tract contains microorganisms that can hydrolyze the bonds of cellulose.
d. they convert cellulose to starch and can digest starch.
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Why are cattle able to survive, grow, and reproduce on a plant diet which does not contain most of the essential amino acids required for their health?
Select one:
a.
Their saliva has cellulase and can therefore digest cellulose present in plant cell walls
b.
Like rabbits, cattle can re-ingest their feces
c.
Bacteria in their rumen synthesize essential amino acids from digested plant material
d.
They are unique in that they can synthesize all essential amino acids in their liver from a variety of metabolic precursors
e.
They are autotrophs
Which of the following are differences between starch and glycogen?
A. Starch is a mixture of amylose and amylopectin while glycogen is a pure biopolymer.
B. The amylopectin instarch has more branches than glycogen.
C. Starch is the storage form of glucose in plants while glycogen is in animals and humans.
D. The branches in amylopectin is alpha 1->6 while itis beta 1-->6 in glycogen.
E. Starch reacts more intensely with Lugol's reagent than glycogen.
What is the difference between starch and cellulose that makes one digestible and the other not digestible to humans? Explain and illustrate.
Chapter 3 Solutions
Modified Mastering Biology with Pearson eText -- Standalone Access Card -- for Campbell Biology: Concepts & Connections (9th Edition)
Ch. 3 - Complete the following table to help you review...Ch. 3 - A glucose molecule is to starch as (Explain your...Ch. 3 - What makes a fatty acid an acid? a. It does not...Ch. 3 - Cows can derive nutrients from cellulose because...Ch. 3 - Of the following functional groups, which is/are...Ch. 3 - Prob. 6TYKCh. 3 - Prob. 7TYKCh. 3 - Prob. 8TYKCh. 3 - Which structural level of a protein would be least...Ch. 3 - Circle and name the functional groups in this...
Ch. 3 - Most proteins are soluble in the aqueous...Ch. 3 - Sucrose is broken down in your intestine to the...Ch. 3 - Explain the role of complementary base pairing in...Ch. 3 - What are the two types of secondary structures...Ch. 3 - The diversity of life is staggering. Yet the...Ch. 3 - How can a cell make many different kinds of...Ch. 3 - Given that the function of egg yolk is to nourish...Ch. 3 - Enzymes usually function best at an optimal pH and...Ch. 3 - SCIENTIFIC THINKING Another aspect of the Nurses...
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- What must occur before a fatty acid can be metabolized by cellular respiration? A)The fatty acids must be linked to glycerol and form a neutral fat. B)The fatty acid must be broken down into acetic acid, a two-carbon molecule. C)The fatty acid chain must be broken down into three-carbon molecules, pyruvic acid. D)The fatty acid must be broken down into amino acids before they can enter the Krebs cycle.arrow_forwardWhat is the function of brown fat? A. to create body heat via aerobic cellular respiration without making much ATP B. holding in more heat than regular adipose tissue C. absorbing fat digested by the intestines D. releasing oxygen in a reverse process of aerobic cellular respirationarrow_forwardIf humans had the ability to digest cellulose, what would a high fiber diet do to blood glucose levels?arrow_forward
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