BIO 168 Exam Questions and Answers With Verified Solutions 2025
smooth muscle and cardiac muscle - ✔✔Which type of muscle tissue is involuntary (can't be consciously
controlled)?
permiysium - ✔✔Skeletal muscle is covered, surrounded and protected by various layers of connective
tissue. Which layer of connective tissue would surround a bundle of muscle fibers (muscle cells)?
Elasticity - ✔✔Muscular tissue has several important properties, such as electrical excitability. Another
property of muscular tissue is that it is able to stretch, and return to its original size and shape. Which
property of muscular tissue is this?
neuromuscular junction - ✔✔The site where a somatic motor neuron releases acetylcholine to stimulate
a skeletal muscle fiber is called the
myoglobin - ✔✔Which of the following molecules found in skeletal muscle cells binds oxygen that can
later be used during aerobic metabolism to help generate ATP?
z discs - ✔✔Which structure occurs at the border between two adjacent sarcomeres? Consult the image
for assistance.
acetylcholine - ✔✔Which of the following is directly responsible for transmitting an action potential
from a motor neuron to a skeletal muscle fiber?
slow oxidative fibers - ✔✔If you are an endurance athlete, you especially rely on which type of skeletal
muscle fiber to perform your sport?
fascia - ✔✔the sheet or broad band of fibrous connective tissue that supports and surrounds muscles
and other organs of the body is called
Ca+2 - ✔✔Which ion is required for exocytosis of ACh?
, troponin - ✔✔Which protein does Calcium bind to?
skeletal muscle and the liver. - ✔✔Glycogen reserves can release glucose for cellular respiration.
Glycogen reserves are typically found in
Calcium - ✔✔The sarcoplasmic reticulum contains
acteylcholinesterase - ✔✔Muscle relaxation requires which enzyme in order to clear the action
potential?
sarcomere. - ✔✔The muscle cell's contracting unit is known as the
Calcium ions attach to troponin which slides tropomyosin off binding sites on actin. - ✔✔How are
binding sites on actin exposed?
fixator - ✔✔A muscle that acts as a __________ stabilizes the origin of the prime mover so that the
prime mover may act more efficiently.
abductor - ✔✔Which term best applies to a muscle that acts to move a bone away from the midline of
the body?
masseter - ✔✔Which of the following is the strongest muscle of mastication?
rectus abdominis - ✔✔Exercise can produce a fashionable "six pack" of toned muscles. Which of the
following muscles is involved in giving the appearance of this defined pack of muscles?
location, microscopic anatomy, method of endocrine and nervous system control - ✔✔What features
distinguish the three types of muscular tissue?
heat generation, production of body movement, stabilization of body positions, storage and movement
of substances through the body - ✔✔The general functions of muscle tissue include:
smooth muscle and cardiac muscle - ✔✔Which type of muscle tissue is involuntary (can't be consciously
controlled)?
permiysium - ✔✔Skeletal muscle is covered, surrounded and protected by various layers of connective
tissue. Which layer of connective tissue would surround a bundle of muscle fibers (muscle cells)?
Elasticity - ✔✔Muscular tissue has several important properties, such as electrical excitability. Another
property of muscular tissue is that it is able to stretch, and return to its original size and shape. Which
property of muscular tissue is this?
neuromuscular junction - ✔✔The site where a somatic motor neuron releases acetylcholine to stimulate
a skeletal muscle fiber is called the
myoglobin - ✔✔Which of the following molecules found in skeletal muscle cells binds oxygen that can
later be used during aerobic metabolism to help generate ATP?
z discs - ✔✔Which structure occurs at the border between two adjacent sarcomeres? Consult the image
for assistance.
acetylcholine - ✔✔Which of the following is directly responsible for transmitting an action potential
from a motor neuron to a skeletal muscle fiber?
slow oxidative fibers - ✔✔If you are an endurance athlete, you especially rely on which type of skeletal
muscle fiber to perform your sport?
fascia - ✔✔the sheet or broad band of fibrous connective tissue that supports and surrounds muscles
and other organs of the body is called
Ca+2 - ✔✔Which ion is required for exocytosis of ACh?
, troponin - ✔✔Which protein does Calcium bind to?
skeletal muscle and the liver. - ✔✔Glycogen reserves can release glucose for cellular respiration.
Glycogen reserves are typically found in
Calcium - ✔✔The sarcoplasmic reticulum contains
acteylcholinesterase - ✔✔Muscle relaxation requires which enzyme in order to clear the action
potential?
sarcomere. - ✔✔The muscle cell's contracting unit is known as the
Calcium ions attach to troponin which slides tropomyosin off binding sites on actin. - ✔✔How are
binding sites on actin exposed?
fixator - ✔✔A muscle that acts as a __________ stabilizes the origin of the prime mover so that the
prime mover may act more efficiently.
abductor - ✔✔Which term best applies to a muscle that acts to move a bone away from the midline of
the body?
masseter - ✔✔Which of the following is the strongest muscle of mastication?
rectus abdominis - ✔✔Exercise can produce a fashionable "six pack" of toned muscles. Which of the
following muscles is involved in giving the appearance of this defined pack of muscles?
location, microscopic anatomy, method of endocrine and nervous system control - ✔✔What features
distinguish the three types of muscular tissue?
heat generation, production of body movement, stabilization of body positions, storage and movement
of substances through the body - ✔✔The general functions of muscle tissue include:
