Transcript Muscular System

32 Questions Due Date: April 26
Science
Chemistry
Cells
Bones
Muscle
Human Bio and Science:
Question-1
Which of the following best describes the
evolutionary advantage of bipedalism?
a. allows an organism to have precise control
over the action of the thumb and fingers
b. frees the hands for carrying objects
c. results in improved eye-hand coordination
d. in early humans, allowed for complex motions
associated with the use of tools
e. increases the chance that an organism can
communicate through the written word
Human Bio and Science:
Question 2
Why would it be difficult for a chimpanzee
to suture a wound?
a. It doesn’t grip a needle at the tip of the
fingers.
b. It has no opposable thumb.
c. Its brain is too small to understand.
d. It lacks language to learn how.
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Human Bio and Science:
Question 3
The process by which living organisms maintain
a fairly constant internal environment despite
changes in the external environment is known as
a. metabolism.
b. biology.
c. homeostasis.
d. evolution.
e. chemistry.
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Human Bio and Science:
Question 4
"Molecules of life" include all of the following
a. water, proteins, lipids, nucleic acids,
carbohydrates.
b. proteins, saturated fats, monosaccharides but
not polysaccharides.
c. lipids and proteins only.
d. any non-carbon base molecule.
e. non-sugar carbohydrates, proteins, lipids,
water.
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Human Bio and Science:
Question 5
Humans possess several characteristics that,
when taken together, differentiate them from
other organisms. These characteristics include
a. opposable thumbs.
b. capacity for complex language.
d. bipedalism.
d. large brain relative to body mass.
e. All of the above are correct.
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Human Bio and Science:
Question 6
Which of the following is correct in terms
of level of organization from least to most
complex?
a. cells, tissue, organ, organ system,
organism
b. atoms, tissue, organs, population
c. atoms, cells, organism, organ systems
d. tissue, organ systems, population, cells
Chemistry of Living Things:
Question 7
What chemical bond is based on the
unequal sharing of electrons?
a. Covalent bond
b. Ionic bond
c. Hydrogen bond
d. Strong bond
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Chemistry of Living Things:
Question 8
Which of the following is an organic
compound?
a. Water
b. Carbon dioxide
c. Glucose
d. Ferric oxide
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Chemistry of Living Things:
Question 9
What carbohydrate is used most often as
an energy source in cells?
a. Glucose
b. Maltose
c. Sucrose
d. Cellulose
ANSWER
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Chemistry of Living Things:
Question 10
Where is genetic information stored in
mammals?
a. DNA
b. RNA
c. Proteins
d. Carbohydrates
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Chemistry of Living Things:
Question 11
Isotopes have either more or fewer _____
than the usual number for their element.
a. electrons
b. protons
c. neutrons
d. atoms
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Cell Structure, Function, and Systems:
Question 12
What is the major difference between
eukaryotic cells and prokaryotic cells?
a. Prokaryotic cells have cilia.
b. Eukaryotic cells have membrane-bound
organelles.
c. Prokaryotic cells have chromosomes.
d. Eukaryotic cells do not have a nucleus.
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Cell Structure, Function, and Systems:
Question 13
Which biological molecule is not a part of a
cell’s membrane?
a. Phospholipids
b. Cholesterol
c. Proteins
d. Nucleic acids
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Cell Structure, Function, and Systems:
Question 14
What is the passive transport of water
across cell membranes called?
a. Diffusion
b. Osmosis
c. Facilitated transport
d. Active transport
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Cell Structure, Function, and Systems:
Question 15
What organelle controls nearly all cell
functions?
a. The nucleus
b. The endoplasmic reticulum
c. Ribosomes
d. Mitochondria
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Cell Structure, Function, and Systems:
Question 16
In humans, what metabolic process
liberates most of the energy from fuel
sources?
a. Glycolysis
b. The citric acid cycle
c. The electron transport system
d. Anabolic metabolism
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Skeletal System:
Question 17
Which of the following is a primary feature
of the skeletal system?
a. Mature bones never change during
adulthood.
b. Ligaments attach bones together.
c. Bones are a storage site for sodium.
d. Arthritis is weakening of bone tissue.
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Skeletal System:
Question 18
Which type of cartilage forms the
embryonic structures that later become
bones?
a. Elastic cartilage
b. Fibrocartilage
c. Embryonic cartilage
d. Hyaline cartilage
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Skeletal System:
Question 19
What hormone causes calcium to be
released from bone?
a. PTH
b. Calcitonin
c. Growth hormone
d. Thyroid hormones
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Skeletal System:
Question 20
What type of joint is the most freely
movable?
a. Fibrous
b. Cartilaginous
c. Articulations
d. Synovial
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Skeletal System:
Question 21
Which of the following is a feature of the
axial skeleton?
a. The pelvic girdle is a component.
b. It protects the spinal cord.
c. The joints of the axial skeleton are
immovable.
d. Its bones are categorized as long
bones.
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Muscular System:
Question 22
What is the primary contractile unit of
muscle?
a. The Z line
b. The muscle fascicle
c. The sarcomere
d. Myosin
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Muscular System:
Question 23
Which of the following is true about slowtwitch muscle fibers?
a. They have few mitochondria.
b. They have a large number of blood
capillaries.
c. They contain no myoglobin.
d. They rely on glycolysis.
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Muscular System:
Question 24
Isotonic muscle contractions
a. occur when a muscle shortens while
maintaining a constant force.
b. result in no movement of some part of the
skeleton.
c. do not result in movement of a limb.
d. only function to stretch tendons.
e. occur when muscles lengthen as a constant
force is applied.
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Muscular System:
Question 25
Which of the following occurs during
contraction?
a. Calcium enters the sarcoplasmic
reticulum.
b. Myosin heads form cross-bridges
with actin.
c. Troponin-tropomyosin binds ATP.
d. Lactic acid serves as the primary
energy source.
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Muscular System:
Question 26
Skeletal muscle groups that work together to
create the same movement are referred to as
a. involuntary.
b. antagonistic.
c. synergistic.
d. sarcomeres.
e. myofibrils.
BACK TO GAME
Muscular System:
Question 27
Stimulation of acetylcholine release cause
skeletal muscles to
a. stimulate smooth muscles to relax.
b. lose the ability to contract.
c. release calcium ions.
d. become excited.
e. be unchanged and remain in a relaxed
state.
Muscular System:
Question 28
T, or transverse, tubes in skeletal muscle function to:
a. transport calcium ions throughout the muscle cells.
b. allow actin and myosin filaments to slide over each
other.
c. promote electrical impulse to travel deep into the cell
and move quickly.
d. help to decrease the amount of ATPs produced.
e. convert glucose to lactic acid, which helps muscles
relax.
Muscular System:
Question 29
When an electrical impulse traveling along a motor
neuron arrives at a neuromuscular junction,
a. there is an increase in the secretion of acetylcholine at
the neuromuscular junction.
b. calcium is transported back to the sarcoplasmic
reticulum.
c. sliding of actin and myosin filaments is inhibited.
d. myosin-actin cross-bridges are destroyed.
e. a new electrical impulse is generated that returns the
message to the original nerve.
Muscular System:
Question 30
Following electrical stimulation of a muscle cell,
calcium functions to:
a. stimulate the enzymes that produce ATP.
b. bind to the protein troponin.
c. leak out of the muscle cell to re-establish the
membrane potential.
d. breaks down acetylcholine.
e. maintain the relaxed state of the muscle.
Muscular System:
Question 31
The primary energy source used by
muscle cells to generate ATP is
a. steroids.
b. ATP.
c. glucose.
d. starch.
e. fatty acids.
Muscular System:
Question 32
At the end of the contractile period, energy from
the breakdown of ATP is used to
a. transport calcium back into the sarcoplasmic
reticulum.
b. repair any muscle damaged during
contraction.
c. digest energy sources to generate new ATP
for the next round of contractions.
d. produce lactic acid.
e. all of the above are correct.