Biology 4.2.2 Flashcards
In order for someone to move, what must happen with their Muscles?
They must Contract & Relax.
The Contraction & Relaxion of Muscles uses ___, which comes from ___.
Energy, Respiration.
When we exercise, what happens to the number of Muscle Contractions in our bodies?
It increases.
Because the number of Muscle Contraction in our bodies increase when we exercise, there is a greater ___ demand in our bodies
Energy.
Because our bodies have a greater Energy demand during exercise to keep Muscles moving, the Muscles need a greater supply of ___ for ___ Respiration.
Oxygen, Aerobic.
How does the Human body react to the increases demand for Oxygen when we exercise? (2)
-Breathing Rate & Volume increases.
-Heart Rate increases.
The way our body reacts to increased demand for Oxygen during exercise increases the supply of ___ ___ to the ___.
Oxygenated Blood, Muscles.
If exercising vigorously, the body may not be able to supply enough ___ to the Muscles to meet the demand for Energy.
Oxygen.
During vigorous exercise, some of the Energy supplied to the Muscles comes from ___.
Anaerobic Respiration.
Anaerobic Respiration is the incomplete breakdown of ___, without ___.
Glucose, Oxygen.
Anaerobic Respiration releases much ___ Energy than Aerobic Respiration.
Less.
Anaerobic Respiration results in the formation of ___ ___, as Glucose is ___ Oxidised.
Lactic Acid, incompletely.
What is created in our bodies after vigorous exercising to break down Lactic Acid build-up in our Muscles?
Oxygen Debt.
