calcium release into the muscle cell cytoplasm alters troponin and tropomyosin activity to:

prevent their obstruction of actin-myosin cross bridges

Which of the following has the highest coefficient of friction?

Football boots on a football pitch

What is the sliding filament theory?

How muscles contract to produce force.

Coefficient of friction is:

Index number of the resistance to motion.

why do we use notational analysis in sports

to provide an objective way of recording performance

always acts parallel to the surface of contact.

Sliding filament theory is

The cross bridge cycle - myosin attaches to actin and pulls.

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Exam Revision Unit 4, Unit 11, Unit 10, Unit 2.2

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Answers

1
constraints led approach to teaching motor skills in physical education was proposed by
Darwin 1998
Bitterman (1998)
Deluca 2000
Newell (1986)
2
Serves as the actual trigger for muscle contraction by removing the inhibition of troponin
Anaerobic Respiration
Acetylcholine
Calcium ions
Aerobic Respiration
3
Purkinje fibers
Stimulates the contraction of the ventricles
Are present in both left and right ventricles
All above are correct
Ramifications of the atrioventricular bundle
4
calcium release into the muscle cell cytoplasm alters troponin and tropomyosin activity to:
reduce lactate build-up
regenerate ATP for the next contraction
chop off myosin heads
prevent their obstruction of actin-myosin cross bridges
5
What does respiratory system control in maintaining pH balance?
Carbon dioxide levels
buffer level
bicarb level
acid level
6
Which of the following has the highest coefficient of friction?
Football boots on a wooden floor
Rubber soled trainers on a wet floor
Football boots on a football pitch
Steel on ice for ice skaters
7
What is a SA Node often called?
Pacemaker
Neurons
Purkinje Fibers
Schwann Cells
8
Constraints led approach to teaching motor skills in PE doesn't involve which of the following?
athlete constraints
task constraints
genetic constraints
environmental constraints
9
What chemical helps to regenerate ATP
ADP
Acetylcholinesterase
Creatine phosphate
Acetylcholine
10
Where is the SA node located?
Lower left atrium
Upper left atrium
Upper right atrium
None of these
11
What is the sliding filament theory?
Communication between a neuron and another cell
How muscles contract to produce force.
Process of innervating skeletal muscles
12
Coefficient of friction is:
Index number of speed
Index number of the resistance to motion.
Index number of the road surface
Index number for tire material
13
Which of the following has the lowest coefficient of friction?
Rubber soles on an indoor basketball court
Football boots on a football pitch
Spikes on a running track
Steel on ice for ice skaters
14
What Is Moved By The Calcium Binding To Troponin?
Sarcomere
Myosin Heads
Actin
Tropomyosin
15
why do we use notational analysis in sports
to provide an objective way of recording performance
because dartfish is cool
to increase motivation
so commentators can say useless stats and get paid for it
16
Which filament can bind ATP and swivel?
myosin
actin
troponin
tropomyosin
17
Is notational analysis subjective or objective?
Objective
Subjective
18
Which of these shows actin and myosin?
B
A
D
C
19
Friction...
always opposes the direction of motion.
only acts on objects in motion.
always acts parallel to the surface of contact.
does not depend on mass.
20
Sliding filament theory is
The tropomyosin and troponin pull on actin.
The Calcium makes actin attach to tropomyosin and pull
The Sarcomere becomes longer because of myosin and actin
The cross bridge cycle - myosin attaches to actin and pulls.
21
Notational Analysis can provide which 'types' of data?
Discrete & Continuous
Social & Psychological
None of these
Quantitative & Qualitative

Exam Revision Unit 4, Unit 11, Unit 10, Unit 2.2 Flashcards | StudBud