
Human Physiology: An Integrated Approach (8th Edition)
8th Edition
ISBN: 9780134605197
Author: Dee Unglaub Silverthorn
Publisher: PEARSON
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Question
Chapter 12.1, Problem 21CC
Summary Introduction
To determine: The way in which muscle fiber responds to an increase in firing rate of somatic motor neuron.
Introduction: Skeletal muscle is voluntary muscles. The contraction and relaxation in the skeletal muscle enable the movement of body parts. The skeletal muscles consist of different types of motor units which regulate the contraction and relaxation of skeletal muscles.
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Students have asked these similar questions
For short answer
questions, write your
answers on the line
provided. To the right is
the mRNA codon table
to use as needed
throughout the exam.
First letter
U
บบบ
U CA
UUCPhe
UUA
UCU
Phe UCC
UUG Leu
CUU
UAU.
G
U
UAC TV UGCys
UAA Stop UGA Stop A
UAG Stop UGG Trp
Ser
UCA
UCG
CCU]
0
CUC
CUA
CCC
CAC
CAU His
CGU
CGC
Leu
Pro
CCA
CAA
Gin
CGA Arg
CUG
CCG
CAG
CGG
AUU
ACU
AAU T
AUC lle
A
1
ACC
Thr
AUA
ACA
AUG
Mot ACG
AGG Arg
GUU
GCU
GUC
GCC
G
Val
Ala
GAC Asp
GGU
GGC
GUA
GUG
GCA
GCG
GAA
GGA
Gly
Glu
GAGJ
GGG
AACASH AGU Ser
AAA1
AAG Lys
GAU
AGA
CAL CALUCAO CAO
G
Third letter
1. (+7) Use the table below to answer the questions; use the codon table above to assist you.
The promoter sequence of DNA is on the LEFT. You do not need to fill in the entire table.
Assume we are in the middle of a gene sequence (no need to find a start codon).
DNA
1
DNA
2
mRNA
tRNA
Polypeptide
C
Val
G
C.
T
A
C
a. On which strand of DNA is the template strand (DNA 1 or 2)?_
b. On which side of the mRNA is the 5' end (left or…
3. (6 pts) Fill in the boxes according to the directions on the right.
Structure
R-C
R-COOH
OH
R-OH
i
R-CO-R' R
R-PO4
R-CH3
C.
0
R'
R-O-P-OH
1
OH
H
R-C-H
R-N'
I-
H
H
R-NH₂
\H
Name
Properties
4. (6 pts) Use the molecule below to answer these questions and identify the side chains and
ends. Please use tidy boxes to indicate parts and write the letter labels within that box.
a. How many monomer subunits are shown?
b. Box a Polar but non-ionizable side chain and label P
c. Box a Basic Polar side chain and label BP
d. Box the carboxyl group at the end of the polypeptide and label with letter C (C-terminus)
H H OHHO
H
H
0
HHO
H-N-CC-N-C-C
N-C-C-N-GC-OH
I
H-C-H
CH2
CH2
CH2
H3C-C+H
CH2
CH2
OH
CH
CH₂
C=O
OH
CH2
NH2
Chapter 12 Solutions
Human Physiology: An Integrated Approach (8th Edition)
Ch. 12.1 - Identify as many pairs of antagonistic muscle...Ch. 12.1 - Prob. 2CCCh. 12.1 - Prob. 3CCCh. 12.1 - Prob. 4CCCh. 12.1 - What are the three anatomical elements of a...Ch. 12.1 - What is the chemical signal at a neuromuscular...Ch. 12.1 - Prob. 7CCCh. 12.1 - Prob. 8CCCh. 12.1 - Prob. 9CCCh. 12.1 - Name an elastic fiber in the sarcomere that aids...
Ch. 12.1 - Prob. 11CCCh. 12.1 - Prob. 12CCCh. 12.1 - Prob. 13CCCh. 12.1 - According to the convention for naming enzymes,...Ch. 12.1 - Prob. 15CCCh. 12.1 - Prob. 16CCCh. 12.1 - Summation in muscle fibers means that the...Ch. 12.1 - Prob. 18CCCh. 12.1 - Which type of runner would you expect to have more...Ch. 12.1 - What is the response of a muscle fiber to an...Ch. 12.1 - Prob. 21CCCh. 12.2 - One study found that many world-class athletes...Ch. 12.3 - What is the response of a muscle fiber to an...Ch. 12.3 - Prob. 24CCCh. 12.3 - Prob. 25CCCh. 12.3 - Prob. 26CCCh. 12.3 - Prob. 27CCCh. 12.3 - Prob. 28CCCh. 12.3 - What happens to contraction if a smooth muscle is...Ch. 12.3 - Prob. 30CCCh. 12.3 - Prob. 31CCCh. 12.3 - Prob. 32CCCh. 12.3 - How can a neuron alter the amount of...Ch. 12.3 - Prob. 34CCCh. 12.3 - Prob. 35CCCh. 12 - The three types of muscle tissue found in the...Ch. 12 - Which two muscle types are striated?Ch. 12 - Which type of muscle tissue is controlled only by...Ch. 12 - Arrange the following skeletal muscle components...Ch. 12 - The modified endoplasmic reticulum of skeletal...Ch. 12 - Prob. 6RQCh. 12 - Prob. 7RQCh. 12 - List six proteins that make up the myofibrils....Ch. 12 - List the letters used to label the elements of a...Ch. 12 - Briefly explain the functions of titin and...Ch. 12 - During contraction, the __________ band remains a...Ch. 12 - Explain the sliding filament theory of...Ch. 12 - Explain the roles of troponin, tropomyosin, and...Ch. 12 - Which neurotransmitter is released by somatic...Ch. 12 - What is the motor end plate, and what kinds of...Ch. 12 - Prob. 16RQCh. 12 - Prob. 17RQCh. 12 - Prob. 18RQCh. 12 - The basic unit of contraction in an intact...Ch. 12 - The two functional types of smooth muscle are...Ch. 12 - Prob. 21RQCh. 12 - Prob. 22RQCh. 12 - Prob. 23RQCh. 12 - Define muscle fatigue. Summarize factors that...Ch. 12 - Prob. 25RQCh. 12 - Prob. 26RQCh. 12 - Prob. 27RQCh. 12 - What is the role of the sarcoplasmic reticulum in...Ch. 12 - Compare and contrast: a. fast-twitch...Ch. 12 - Prob. 30RQCh. 12 - One way that scientists study muscles is to put...Ch. 12 - Prob. 32RQCh. 12 - On the basis of what you have learned about muscle...Ch. 12 - Prob. 34RQCh. 12 - Prob. 35RQ
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