NEW
Font size
WorksheetsRole of ATP in Muscle Contractions
Total questions: 18
Worksheet time: 9mins
What is the role of ATP in muscle contractions?
Provides energy for muscle contraction
Provides oxygen for muscles
Removes waste from muscles
None of the above
Each time a myosin filament engages with an actin filament, how many ATP molecules are used?
1 ATP molecule
2 ATP molecules
5 ATP molecules
10 ATP molecules
Fill in the blank: The contraction of a muscle requires _______ of ATP molecules.
plenty
none
few
little
Muscles are either _______ or _______ with no in-between.
contracted, relaxed
flexed, extended
tense, loose
stretched, compressed
Which cycle is involved in cellular respiration as shown in the diagram?
Calvin cycle
Krebs cycle (citric acid cycle)
Nitrogen cycle
Water cycle
Cellular respiration produces which of the following as shown in the diagram?
Oxygen
Water (H2O)
ATP (energy)
Both B and C
Fill in the blank: ATP is formed through _________.
cellular respiration
photosynthesis
fermentation
digestion
Which of the following are components of food that enter the Krebs cycle as shown in the diagram?
Proteins
Sugars
Fats
All of the above
Cellular respiration requires which molecule as shown in the diagram?
Carbon dioxide
Oxygen (O2)
Nitrogen
Glucose
The process of cellular respiration depends on the presence of oxygen. What is the next step after Glycolysis if oxygen is available?
Fermentation
Kreb's Cycle
Photosynthesis
Respiration
The process of cellular respiration depends on the presence of oxygen. How many ATP molecules are produced when oxygen is available?
2 ATP
34 ATP
10 ATP
20 ATP
The process of cellular respiration depends on the presence of _________
oxygen
carbon dioxide
nitrogen
hydrogen
When muscles don’t get enough ATP, what can happen to them?
They can cramp or become unable to contract.
They grow stronger.
They become more flexible.
They start producing more ATP.
What happens to muscles during intense exercise?
Muscles are worked strenuously and the glucose supply is exhausted.
Muscles relax and store more glucose.
Muscles stop functioning completely.
Muscles produce excess oxygen.
What is muscle fatigue and what causes it?
Muscle fatigue occurs when ATP is no longer efficiently being used for cross-bridges.
Muscle fatigue occurs when oxygen is no longer present in the blood.
Muscle fatigue occurs when lactic acid is completely removed from muscles.
Muscle fatigue occurs when muscles stop contracting permanently.
What is anaerobic respiration and how does it contribute to muscle fatigue?
Anaerobic respiration causes muscles to begin to burn, making you stop exercising before cells are injured.
Anaerobic respiration increases oxygen supply to muscles, preventing fatigue.
Anaerobic respiration removes lactic acid from muscles, reducing soreness.
Anaerobic respiration only occurs during sleep and does not affect muscle fatigue.
What is oxygen debt and how does it affect your breathing during exercise?
Oxygen debt is a difference between the amount of oxygen available and the amount required, causing you to be 'out of breath'.
Oxygen debt is the amount of oxygen stored in the muscles during rest, making breathing easier during exercise.
Oxygen debt is the excess oxygen produced during exercise, leading to slower breathing.
Oxygen debt is the oxygen released by the body after exercise, causing you to feel refreshed.
A person in better physical health is more efficient at transferring oxygen to muscle fibers and will not feel as sore or out of breath.
True
False
