WHAT IS LIFE? A GUIDE TO BIO 3E+LAUNCHPA
3rd Edition
ISBN: 9781319103316
Author: PHELAN
Publisher: Macmillan Higher Education
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Chapter 4, Problem 17MC
Summary Introduction
Introduction:
Although sugars are the primary source of energy for most organisms, a number of other molecules may be used.
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a) what happens if an enzyme is not made correctly?
b) what is the function of the major RNA is it proteins synthesis?
c) what is the primary source of all glucose, and why is it such an important monosaccharide?You need to include its molecular formula.
d) when you react ammonia with a halogenated alkane will you get only one organic product? Why or why not? (do not talk about inorganic products)
e) emulsifiers are pretty important compounds for daily life, externally and internally to us humans. Describes the two parts of an emulsifier molecule, and how most emulsifiers work and what they actually do.
f) consider the ring structure of B-D glucose. it will give a positive test as a reducing sugar. Describe how that can happen in a pH=7 solution such as fehlings'?
Which of the following is NOT a function of carbohydrates?
A Structural support
B) Speeds up chemical reactions
C) Energy source
D) Acts as cell receptors
Coenzyme Q is derived from ____ and is _____.
a) A fatty acid; a biological deteregent
b) Cholesterol; a vitamin precursor
c) Isoprene; an electron carrier
d) A fatty acid; a carrier for oligosaccharides
Chapter 4 Solutions
WHAT IS LIFE? A GUIDE TO BIO 3E+LAUNCHPA
Ch. 4 - Prob. 1SACh. 4 - Prob. 2SACh. 4 - Prob. 3SACh. 4 - Prob. 4SACh. 4 - Prob. 5SACh. 4 - Prob. 6SACh. 4 - Prob. 7SACh. 4 - Prob. 8SACh. 4 - Prob. 9SACh. 4 - Prob. 10SA
Ch. 4 - Prob. 11SACh. 4 - Prob. 12SACh. 4 - Prob. 13SACh. 4 - Prob. 14SACh. 4 - Prob. 15SACh. 4 - Prob. 16SACh. 4 - Prob. 17SACh. 4 - Prob. 1MCCh. 4 - Prob. 2MCCh. 4 - Prob. 3MCCh. 4 - Prob. 4MCCh. 4 - Prob. 5MCCh. 4 - Prob. 6MCCh. 4 - Prob. 7MCCh. 4 - Prob. 8MCCh. 4 - Prob. 9MCCh. 4 - Prob. 10MCCh. 4 - Prob. 11MCCh. 4 - Prob. 12MCCh. 4 - Prob. 13MCCh. 4 - Prob. 14MCCh. 4 - Prob. 15MCCh. 4 - Prob. 16MCCh. 4 - Prob. 17MC
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- β-oxidation A) is the second step in the oxidation of glucose. B) is a process used to oxidize fatty acids. C) occurs in the cytoplasm. D) is a process used to digest some polysaccharides. E) lengthens fatty acids by addition of two carbons.arrow_forwardWhat 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_forwardThe energy released by 1 gram of glucose is: A) 6 kcal B) 4 kcal C) 5 kcal D) 3kcalarrow_forward
- Enzyme 1 has peak activity at pH 2.4 and Enzyme 2 has a peak activity at pH 8.4. Which of the following choices correctly identifies the two enzymes? A) 1- pepsin; 2- lingual lipase B) 1 - pepsin; 2 - carboxypeptidase C) 1 - trypsin; 2 - aminopeptidase D) 1- trypsin; 2 - amylase E) 1- trypsin; 2- pepsinarrow_forwardThe removal of an amino group in a reaction that generates an ammonium ion is called: (a) ketoacidosis. (b) transamination. (c) deamination. (d) denaturation.arrow_forwardIn order to activate glucose for storage as glycogen, what must be added to each glucose? A) Phosphate. B) ATP. C) CoA. OD) UDP.arrow_forward
- Definitions: energy, metabolism, macronutrient, autotroph, heterotroph, byproduct, producer, consumer Ch 4. 1) a) What is a “balanced diet” and why is it important? b) Can a person be malnourished and not be “starving”? Explain your answer. 2) a) What is the difference between saturated and unsaturated fats? b) How do they differ in structure? c) Which is healthier and why? d? What are trans fats? 3) What is the role of a) carbohydrates and b) fats in our bodies? 4) a) What are the different roles proteins play in our cells/ bodies? b) What are essential amino acids? c) What is a complete vs. incomplete protein? 5) How do animals and plants differ in terms of their main structural components? 6) What primary characteristic determines the function of biological molecules? 7) a) How do enzymes catalyze (increase the rate of) reactions? b) What does it mean that enzymes are “substrate specific”? c) How are they usually named? 8) Describe the two types of enzyme…arrow_forwardTriglycerides result from esterification between fatty acids and ___ , which makes them ___ than fatty acids. a) carbohydrates; more polar b) bile salts; more easily digestible c) glycerol; less polar d) phosphate; contain more energyarrow_forwardThe main difference between starch and glycogen is: A) Starch functions to store energy, While glycogen functions as a structural molecule B)Glycogen Functions to store energy, while starch functions as a structural molecule C)Starc is made of glucose, while glycogen is made of ribose D)Starch is made of ribose, while glycogen is made of glucose E)Starch is found in plant cells, while glycogen is found in animal cellsarrow_forward
- The ultimate substances to which the carbohydrates are degraded are (a) amino acid (b) glycerol (c) glucose (d) maltosearrow_forwardWhich of the following catabolic processes is correct? A) Bile salts emulsify proteins for further digestion B) the digestive system breaks down protein into peptides, and then amino acids C) amylase breaks protein down into sucrose D) insulin turns carbohydrates into stored fatarrow_forwardWhat is the reason that amino acid degradation spikes approximately 24 hours after starting a fast? (A) The brain adapts to using ketone bodies, and amino acids serve as the primary precursors for ketone bodies.(B) Red blood cells begin using amino acids to drive their citric acid cycle.(C) Amino acids are broken down and used to replenish glycogen. (D) The liver needs to make glucose for brain and RBCs, and amino acids provide the carbon skeleton for gluconeogenesis.(E) The ammonia released from amino acid breakdown is a substrate for b-oxidation, which increases during prolonged fasting.arrow_forward
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