Digestion & Nutrition - Energy release from food

Question 1

Which nutrient do we get most of our energy from ?

Answer 1

carbohydrates

Question 2

Which nutrient is needed to keep food moving along our bowels ?

Answer 2

Fibre

Question 3

Which word describes when there is not enough of a mineral or vitamin in the diet ?

Answer 3

deficiency

Question 4

Name one disease linked with a deficiency of vitamins or minerals

Answer 4

scurvy, rickets, anaemia

Question 5

Name one disease linked with obesity

Answer 5

heart disease, diabetes type 2, arthritis

Question 6

Glucose + oxygen = ?

Answer 6

carbon dioxide + water + energy (ATP)

Question 7

carbo dioxide + water + energy (ATP) is the product of ?

Answer 7

Glucose + oxygen

Question 8

By what process does glucose enter the cells in the body?

Answer 8

diffusion

Question 9

What is the name of the reaction that releases energy from the food we’ve eaten?

Answer 9

respiration

Question 10

What are the waste products of the of glucose and oxygen

Answer 10

carbon dioxide and water

Question 11

How thick is the ……… wall ?

Answer 11

one-cell thick capillary wall

Question 12

What happens to the soluble products of
digestion once they leave the small intestine ?

Answer 12

-Dissolve in the blood
-Are carried around the body
-They diffuse from the blood, into the cells in the body where they can be used.

Question 13

What do we need energy for?

Answer 13

-Allowing muscle contraction
-Maintaining internal temperature, maintaining core body temperature at 37 °C
-Making new molecules and new cells

Question 14

In what ways is burning sugar like respiration?

Answer 14

-Both of them use sugar as the fuel
-Both need oxygen.
-Both of them release energy and heat.

Question 15

In what ways is burning sugar and respiration different?

Answer 15

-Respiration does not produce a flame
-Energy release is slower and more controlled.