KIN 4431A – Exercise Physiology – Midterm Exam Questions with Verified Answers

Kin 4431A Midterm questions with verified answers
a-vO2 diff Ans✓✓✓- How much oxygen can be carried in the blood
- Difference in blood oxygen content between arterial and venous blood


Aerobic Ans✓✓✓- Oxygen present
- Fuel: Protein, fats, ATP
- Time: 120s - several hours
- Byproducts: ATP, CO2
- Example: Marathon


Aerobic Limiting Factors (Energy) Ans✓✓✓Finite in power, infinite in
capacity


Alactic Ans✓✓✓- No oxygen or lactic acid present
- Fuel: ATP & PC
- Time: 0-15s
- Byproducts: ATP, Cr, ADP
- Example: Sprinting (100m)


Alactic Limiting Factors (Energy) Ans✓✓✓Capacity = finite because
small gas tank
Power = Near infinite because done fast

, Anabolism Ans✓✓✓- Smaller molecules are combined to make larger
molecules
- Requires ATP
- Forms tissue


ATP provides energy for.... Ans✓✓✓1. Intracellular Signalling
2. Protein synthesis (building new proteins)
3. Active transport (moves against gradient)
4. Muscle contraction


Blood doping Ans✓✓✓- Increases blood oxygen
- Blood cells are removed and RBCs isolated
- Negatives is blood viscosity increases (thicker), heart must work harder
to pump blood around body and therefore can lead to heart failure


Breakdown of aerobic Ans✓✓✓Breakdown of glucose molecules using
oxygen, fats and protein are slower to process making the energy slower
but long-term


Breakdown of Alactic Ans✓✓✓PCK (enzyme) attaches to creatine to
gave a phospahete and moves it onto adensoine, and after all phosphates
are used up, run out of gas which is why it is short-term