12PE | U3/4 Revision - PeakPhysEd Exam Buster MCQs (Part 2)

When considering the energy systems:

• The aerobic system is the slowest to contribute to ATP resynthesis, but 40-50 times more yield than the two combined anaerobic systems

• PC is adversely affected by the low pH caused when the LA system takes over energy production

• The anaerobic glycolysis system produces 5 times as much energy as the PC system

• None of the above

The aerobic system preferentially uses CHO’s because they:

• Occur in a higher abundance in our bodies

• Require less oxygen than fats to release energy

• Break down quicker than the CHO’s used by the PC system

• All of the above

The oxygen debt:

• Is always equal to the oxygen deficit in terms of oxygen quantities

• Is when oxygen supply is not meeting demand

• Occurs at the commencement of exercise when insufficient oxygen to provide energy aerobically is available

• Sees PC being restored and lactic acid being broken down

Extending EPOC is likely to:

• Return the body to pre-exercise temperatures quicker

• Replenish PC quicker

• Remove more H+

• Repay oxygen deficit quicker

A disruption to glycolytic enzymes will lead to fatigue by:

• Increasing the reliance on fats as a fuel source

• Increasing the amount of lactic acid that is produced due to anaerobic glycolysis

• Limiting the breakdown on glycogen to glucose and then resynthesis of ATP

• All of the above

Flexibility is:

• An overall body phenomenon

• Joint specific

• Increased when muscles shorten

• Affected by bone density

The following data would give the best indication of energy system interplay during an analysed game of netball:

• Skill frequency & movement patterns

• Movement patterns & W:R ratio

• Heart Rate & movement patterns

• W:R ratio & skill frequency

The best example of a correct short interval training listed below is:

• 8 x 3 x 80 m runs with a w:r ratio of 1:5

• 10 x 4 x 100 m runs with a w:r ratio of 1:1

• 3 x 8 x 100 m runs with a w:r ratio of 1:3

• None of the above

Ballistic stretching is often used by gymnasts because:

• Movements are highly specific to the demands of their competition

• They are highly trained

• They perform on shock absorbing floors

• All of the above

Whilst on a balance beam a gymnast becomes less stable and moves her left arm clockwise whilst at the same time moving her right leg counter-clockwise.

This is an example of Newton’s:

• 1st Law

• 2nd Law

• 3rd Law

• Conservative Law