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Microscopic Anatomy of Muscles and Energy Sources

Total questions: 61

Worksheet time: 2hrs 2mins

Name
Class
Date
1.

Where does the initial amount of ATP for muscle contraction come from?

a)

Creatine Phosphate

b)

anaerobic glycolysis

c)

the muscles

d)

aerobic respiration

2.
The Light I Band consists of... 
a)
Myosin filaments only
b)
Actin filaments only
c)
Myosin and actin filaments
d)
none of the above
3.
The functional unit of the muscle cell is the: 
a)
Sarcomere
b)
Osteon
c)
Myofilament
d)
Muscle fiber
4.
The thick filament is composed of: 
a)
Myosin
b)
Actin
5.
The thin filament is composed of: 
a)
Myosin
b)
Actin
6.
Actin filaments our bound to the edges of the sarcomere, also known as the...
a)
M-Line
b)
H-Zone
c)
Z-Disc
d)
A-Band
7.
Which of the following is NOT a function of the muscular system?
a)
Heat production
b)
Joint stability
c)
Movement
d)
Communication
8.
Which of the following muscle types is NOT striated?!
a)
Smooth
b)
Skeletal 
c)
Cardiac
d)
All of the above are striated
9.

Used to create energy for the muscle cell

a)

nuclei

b)

mitochondria

c)

T- tubules

d)

myofibrils

e)

myosin

10.

Contractile unit in myofibrils

a)

sarcolemma

b)

sarcoplasma

c)

sarcoplasmic reticulum

d)

sarcomere

e)

actin

11.

Controls the cell's activity. More than one found in muscle cell/fiber

a)

nuclei

b)

mitochondria

c)

T- tubules

d)

myofibrils

e)

myosin

12.

Scientific name for muscle fiber bundle.

a)

Epimysium

b)

Fascicle

c)

Myofibril

d)

Myofilament

13.

Tough connective tissue sheath that surrounds the entire muscle.

a)

Endomysium

b)

Epimysium

c)

Fascicle

d)

Perimysium

14.

Connective tissue sheath that surrounds muscle fibers.

a)

Endomysium

b)

Epimysium

c)

Fascicle

d)

Perimysium

15.

Made up of myosin filaments and contains ATPase.

a)

Myofibril

b)

Myofilament

c)

Thick filament

d)

Thin filament

16.

Which label is the muscle fiber?

a)

A

b)

B

c)

C

d)

D

17.

Which label indicates the sarcomere?

a)

H

b)

I

c)

J

d)

K

18.

Which label indicates the filament composed of myosin?

a)

H

b)

I

c)

J

d)

K

19.

Which label indicates the I band?

a)

H

b)

I

c)

J

d)

K

20.

Which label indicates the A band?

a)

J

b)

K

c)

L

d)

M

21.

Which type of muscle tissue is both voluntary and striated?

a)

Skeletal

b)

Cardiac

c)

Smooth

d)

Connective

22.

Which of the following correctly lists the structures from largest to smallest

a)

Myofibril, Myofilament, Myofiber, Fascicle

b)

Fascicle, Myofibril, Myofiber, Myofilament

c)

Muscle, Myofiber, Fascicle, Myofibril

d)

Fascicle, Myofiber, Myofibril, Myofilament

23.

Term used when a myosin head attaches to an active site

a)

Cross Cycle

b)

Activation reaction

c)

Activation bridge

d)

Cross bridge

24.
Which ion below IS NOT critical to muscle contraction?
a)
Sodium Ion
b)
Calcium Ion
c)
Potassium Ion
d)
Phosphorus Ion
25.
A mitochondria's role in muscle contraction is the production of...
a)
Synthesis of ATP
b)
Metabolism of ATP
c)
Synthesis of Proteins
d)
Metabolism of Worn out Proteins
26.
Which is more true to cause muscle contraction?
a)
Actin Pulls on the myosin
b)
Myosin Pulls on the Titin
c)
Myosin Pulls on Actin
d)
Actin Pulls on Titin
27.
Which is more true to cause muscle contraction?
a)
Actin Pulls on the myosin
b)
Myosin Pulls on the Titin
c)
Myosin Pulls on Actin
d)
Actin Pulls on Titin
28.
Which ion, when present, changes the conformation of tropomyosin?
a)
Calcium
b)
Sodium
c)
Potassium
d)
Lithium
29.

Calcium's purpose in muscle contraction is to

a)

cross the neuromuscular junction and stimulate the sarcolemma

b)

travel down the T-tubule to reach interior myofibrils

c)

bind to troponin, move tropomyosin, and expose actin's binding sites

d)

attach to actin, forming a crossbridge

30.

___provides energy for muscle contraction and relaxation.

a)

cAMP

b)

ADP

c)

ATP

d)

M line

31.

A motor neuron is…

a)

a. a single group of neurons that attach to many neuromuscular junctions.

b)

b. Junction of synapse where the motor neuron attaches to the muscle.

c)

c. A nerve cell that carries the action potential to skeletal muscles.

d)

d. NA

32.

Contractility is the ability of a muscle to…

a)

a. shorten.

b)

b. respond to a nerve stimulus

c)

c. stretch beyond the resting state.

d)

d. return to a resting state after the muscle is stretched

33.

Excitability is the ability of a muscle to

a)

a. shorten.

b)

c. stretch beyond the resting state.

c)

b. respond to a nerve stimulus.

d)

d. return to a resting state after the muscle is stretched.

34.

What chemical builds up in the muscle during anaerobic muscle movement?

a)

a. ATP

b)

b. Calcium

c)

c. Lactic Acid

d)

d. Potassium

35.

2. _____ Cardiac muscles are like skeletal muscles except cardiac muscles are voluntary.

a)

True

b)

False

36.
During short bursts of intense exercise, muscles will use which of the following for fuel? 
a)
glucose
b)
fat
c)
creatine phosphate
d)
glycogen
37.
Anaerobic respiration
a)
causes fatigue
b)
produces lactic acid
c)
produces oxygen debt
d)
all of these
38.
Which of the following MUST be present for aerobic respiration? 
a)
carbon dioxide
b)
lactic acid 
c)
glucose
d)
oxygen
39.
Which chemicals must be present for muscles to contract?
a)
calcium
b)
ATP
c)
lactic acid
d)
ATP and Calcuim
40.
Acetylcholine
a)
is responsible for producing lactic acid
b)
causes an action potential to begin in muscle fibers
c)
gives us good muscle tone
d)
causes cramps and spasms
41.
What does CP stand for?
a)
Creatine Product
b)
Creatine Phosphate
c)
Crazy Phosphate
d)
Creatine Phosporus
42.
What would the main energy system used be for a 800m sprinter?
a)
Anaorebic Glycolysis
b)
Areobic System
c)
ATP-PC System
43.

The breaking off of the 3rd phosphate molecule from ATP releases...

a)

noise

b)

heat

c)

injury

d)

energy

44.
Cellular respiration is called an aerobic process because it requires
a)
light
b)
exercise
c)
oxygen
d)
glucose
45.
What are the products of aerobic respiration?
a)
Glucose and oxygen
b)
Carbon dioxide and water
c)
Lactic acid
d)
Carbon monoxide
46.
What are the products of anaerobic respiration?
a)
Glucose and oxygen
b)
Carbon dioxide and water
c)
Lactic acid
d)
Carbon monoxide
47.
Which type of respiration is most efficient?
a)
Aerobic
b)
Anaerobic
48.

Makes 36 ATP

a)

Aerobic

b)

Anaerobic

c)

Both

49.

Makes 2 ATP

a)

aerobic

b)

anaerobic

c)

both

50.

requires mitochondria

a)

aerobic

b)

anaerobic

c)

both

51.

causes muscle cramps

a)

aerobic

b)

anaerobic

c)

both

52.

Requires glucose (sugar)

a)

aerobic

b)

anaerobic

c)

both

53.

Name the tissue

a)

Skeletal

b)

Cardiac

c)

Smooth

54.
Name this tissue
a)
Skeltal
b)
Cardiac
c)
Smooth
55.
Name this tissue
a)
Skeletal
b)
Cardiac
c)
Smooth
56.
This type of muscle tissue is found only in the heart
a)
Skeletal
b)
Cardiac
c)
Smooth
57.
This type of muscle tissue is found in the walls of hollow organs such as the stomach 
a)
Skeletal
b)
Cardiac
c)
Smooth
58.
This type of muscle tissue is attached to bones wand helps control voluntary movement
a)
Skeletal
b)
Cardiac
c)
Smooth
59.
Which types of muscle tissue are voluntary
a)
Cardiac Muscle
b)
Smooth Muscle
c)
Skeletal Muscle
d)
Skeletal Muscle and Smooth Muscle
60.
Which type(s) of muscle tissue have visible striations
a)
Only Cardiac Muscle
b)
Only Skeletal Muscle
c)
Only Smooth Muscle
d)
Skeletal and Cardiac Muscle
61.
This type of muscle tissue moves food through the digestive track
a)
Skeletal
b)
Cardiac
c)
Smooth

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