Unit 3

Question 1

What is the Energy Nutrients?

Answer 1

3 sources of energy that allow us to maintain bodily functions, build + repair tissue, + remain psychical activity

Question 2

Describe the 3 energy nutrients

Protein:

Fat:

Carbohydrates:

Answer 2

Protein:No protein reserved

Fat: rich storage of energy

Carbohydrates:the most important source of energy. most used and plentiful

Question 3

explain what the Three Metabolic Pathways are

ATP-PC:

Glycolysis:

cellular respitory:

Answer 3

The 3 metabolic pathways: the main pahways that ATP is reserved + restored

ATP-PC:
-Anaerobic (no oxygen)
-last 10-seconds
-uses ATP + PC already stored in the muscles
-creates no waste

Glycolysis:
-Anaerobic (no oxygen)
-last 15sec-3mins
-uses Glucose
-produces lactic acid

Aerobic:
-aerobic (yes oxygen)
-uses glycogen, fat, and protein
-produces water + carbon dioxide,
-lasts for as long as you do

Question 4

explain the difference between Slow twitch vs. fast-twitch muscles

Answer 4

Slow twitch:
-generate and relax tension slowly
-lower tension for longer
-high oxygen (high myoglobin)
-aerobic activities
-low glycogen

Fast twitch muscles:
-generates and relaxes tension fast
-high tension for short time
-low oxygen (low myoglobin)
-Anaerobic activities
-high glycogen

Question 5

Catagorze the muscle types

1. slow-oxditate
2. fast-oxidateive glycotic
   3.fast glycolotic

Answer 5

1. slow-oxditate: slow twich
   -oxygen/myglobin
   -low glycogen
2. fast-oxidateive glycotic
   -half-breed
   -oxygen
   -medium glycogen

3.fast glycolotic
fast twitch
-no oxygen/low myglobin
-high glycogen

Question 6

take me through 1 heart beat (steps and areas)

Answer 6

1. deoxygenated blood enters the superior/inferior vena Cava
2. the blood goes to the right atrium
3. passing through the tricuspid valve into the right ventricle
4. passing through the pulmonary semilunar valve into the pulmonary artery
5. going into the lungs and becoming smaller capillaries for oxygen exchange

6.blood goes backing into the heart via pulmonary veins

7. goes into left atrium
8. passes through the bicusbid valve into the left atrium
9. passes through the aortic semilunar valve into the aorta
10. the aorta distributes the blood to the body to deliver oxygen

Question 7

what is

cardiac output:

stroke volume:

heart rate:

cardiac cycle:

blood pressure:

systolic blood pressure:

Diastolic blood pressure:

blood flow distribution:

BPM:

MHR:

VO2 max:

Answer 7

cardiac output: volume of blood pumped per minute

stroke volume: volume of blood per pump

heart rate: £ of beats per minute

cardiac cycle: what happens during 1 heart beat (systolic: heart contracts and diastolic: heart fills)

blood pressure:force of blood against walls

systolic blood pressure: Max blood pressure

Diastolic blood pressure: Min blood pressure

blood flow distribution: how oxygen is distributed through the body

BPM: Beats per minute (heart rate)

MHR: maximum heart rate (220-age)

VO2 max:max oxygen the body can use
-measures aerobic fitness

Question 8

untrained vs. trained effects on
cardiac output:

stroke volume:

heart rate (bpm):

blood pressure:

blood flow distribution:

VO2 max:

Answer 8

stroke volume:
untrained: low
trained: high

heart rate (bpm):
untrained: high
trained: low

blood pressure:
untrained: high
trained: low

blood flow distribution:
untrained: low
trained: high

VO2 max:
untrained: low
trained: high cuz capillarity density increases

Question 9

What are the percentages for the target heart zones?

Moderate:
Vigorous:
high-intensity:

Answer 9

Moderate: 50-70% of MHR
Vigorous:70-85% of MHR
high-intensity:85-95% of MHR

Question 10

What is the purpose of VO2 max and its testing

pros and cons of direct VO2 max testing?

Answer 10

Purpose: to measure Aerobic fitness
-monster respiratory diseases
-checking health risk factors in the population

Pros:
-exact measurable numbers and ppl to interpret those numbers

cons:
-expensive
-exhausting