LESSON 2: A2- Metabolism

Question 1

metabolism

Answer 1

the set of chemical reactions
that occur in living organisms that are
necessary to maintain life

Question 2

What is the metabolism made up of?

Answer 2

Catabolic and anabolic reactions

Question 3

catabolism

Answer 3

the metabolic reactions
that break down larger molecules into
smaller subunits

Question 4

anabolism

Answer 4

the metabolic reactions that
use energy to produce larger molecules
from smaller subunits

Question 5

chemical energy is stored in…

Answer 5

-cells and is released when needed

Question 6

What do cells in body use chemical energy for?

Answer 6

-fuel biological processes and physcial activites

Question 7

Endothermtic (warm-blodded) animals

Answer 7

Endothermic animals like mammals and birds have higher energy demands because they use a great deal of energy to keep their bodies warm

Question 8

Ectothermic

Answer 8

animals like reptiles on the other hand do not have this energy demand so can survive on much less energy intake

Question 9

factors that affect how much energy you require

Answer 9

-size

-physical acitivity

-sex

-age

• genes

Question 10

How does the thyroid play a role in our metabolisms?

Answer 10

-thyroid makes sure cells are functioning

-organ is made from lobules that contain samller cells called folicules

• Folecules store hormes the thyroid sends into blood

-T4 and T3 are messengar hormones that instruct cells when to consume oxygen and nuitrents which matains the matabolism

-The series of reaction our cells preform to provide bodies with energy

-hormonal notification makes heart pump feectively and makes cells break down nuitents fast

• when more enrgy is needed the thyroid sends out hormones to incrtease metabolism

-thyroid allows for cells to gorw, use energy and reproduce

Question 11

Diseases that affect the metabolism

Answer 11

Hyperthyroidism:

-too many hormones are sent out and overconsumption of nuitrents and O2 occur causing a very fast metabolism

Hypothrodism:

-Too few hormones are sent out, not enough messengars to guide which causes a slow metabloism

Question 12

Energy is burned in…

Answer 12

Jouels

-We usually use kilojoules

Question 13

Food is measured in

Answer 13

Calories

Question 14

basal metabolic rate

Answer 14

the minimum
amount of energy required to keep
you alive

Question 15

To have a healthy lifestyle, you need to maintain a balance between…

Answer 15

-What you are eating
-How much you are eating
-How much physical activity you are participating in

Question 16

Calories are a way to…

Answer 16

A way of keeping track of the body’s energy budget

Question 17

When we burn off more energy then we replenish we…

Answer 17

lose weight

Question 18

When we burn off less energy then we replinsh our bodies…

Answer 18

-The energy that is excess will be stored as fat which causes weight increase

Question 19

1 calorie is really the amount of energy…

Answer 19

required to raise 1 gram of water by 1 °C

Question 20

The amount of calories in foods show…

Answer 20

-How much energy is stored in its chemical bonds

Question 21

Energy is relased during digestion and stored in molecules, what are the three ways its used?

Answer 21

-digestion
-physicla activity
-Basic functions of organs and tissues (BMR)

Question 22

Calorie counts on nutrion labels shows consumers what?

Answer 22

• How much energy is contained in the food

Question 23

TRUE OR FALSE: Not all people get the same amoutn of calories from food

Answer 23

TRUE

-enzymes levels, gut bacteria and intestine length

Question 24

Eating disorders

Answer 24

-Bulimia
-Anorexia
-Bulimia