Latest Science Questions For 9th Grade Biology! Quiz
Eating a balanced diet is an important factor in staying healthy, but so is exercise which has a positive effect on our health in many ways. During exercise your body's metabolic rate increases which means you burn more calories. Here are the latest Biology questions concerning exercise and health, let's see how well you'll do.
- 1.
How does exercise help your circulation?- A.
By making you stronger and fitter
- B.
By helping your body control it's metabolic rates
- C.
By creating LDL cholesterol
- D.
By increasing levels of HDL cholesterol
- 2.
What is metabolic rate?
- A.
The speed of eating
- B.
The speed of digestion
- C.
The speed of the chemical reactions in your body
- D.
The speed your blood flows through your arteries
- 3.
What is the chemical that causes cramp?
- A.
Glucose
- B.
Lactose
- C.
Glucosic acid
- D.
Lactic acid
- 4.
Which of the following statements about a balanced diet is not true?
- A.
Carbohydrates include sugars and starch
- B.
Proteins are needed for growth and repair
- C.
Vitamins and minerals are needed in large quantities
- D.
Fats can come from both animal and plant sources
- 5.
After exercise, why do your heart rate and breathing rate stay higher than normal?
- A.
To get rid of lactic acid
- B.
Because it takes a while for your chest and heart muscles to slow down
- C.
Because it takes time for messages to reach your brain to say that you have stopped exercising
- D.
Because your body is staying ready just in case you start exercising again
- 6.
During exercise, breathing rate and heart rate both increase. Why?
- A.
To deliver more oxygen to your muscles
- B.
Because you are using up the nutrients from your last meal
- C.
To deliver more oxygen to your stomach so that you can release more energy from your food
- D.
Because your blood vessels are bigger
- 7.
Which long term health problem is not related to a lack of exercise?
- A.
Heart disease
- B.
Beri-beri
- C.
Strokes
- D.
Diabetes
- 8.
Why is over exercising bad for you?
- A.
It can strain your heart muscles
- B.
It makes you go dizzy
- C.
It takes up too much time
- D.
You get too much protein in your blood
- 9.
Why do your muscles need to be supplied with more blood during exercise?
- A.
They are contracting and relaxing
- B.
Blood makes them larger so they can do more work
- C.
Muscle cell respiration is greater during exercise
- D.
So that they can get more protein for energy
- 10.
Which of the following statements is true about your metabolic rate after exercise?
- A.
It increases permanently
- B.
It decreases permanently
- C.
It stays high for a while and then goes back to normal
- D.
It stays low for a while and then goes back to normal
