Mod 1.4 - Understanding the practical elements of nutrition

Question 1

What are the two types of chemical reactions? - name, define and provide an example

Answer 1

Exergonic reaction - PRODUCES energy

eg: the conversion and breakdown of fats into ATP

Endergonic reaction - CONSUME energy

eg: during protein synthesis (glucose needed for this process)

Question 2

ATP stands for….

Answer 2

Adenosine triphosphate

= 1 adenosine molecule attached to 3 phosphate groups

Question 3

One calorie is the amount of energy required to raise the temperature of HOW MUCH WATER by HOW MANY DEGREES C?

Answer 3

One calorie is the amount of energy required to heat 1g of water by 1 degree C

Question 4

Acids when dissolved in water donate what type of ion?

Answer 4

Hydrogen

Question 5

Bases accept what type of ion?

Answer 5

Hydrogen

Question 6

What pH is blood normally kept at?

Answer 6

7.4

Question 7

Cell membrane primarily does what?

Answer 7

Controls movement of substances in and out of the cell

Question 8

Nucleus primarily does what?

Answer 8

Contains DNA

Question 9

Mitochondria primarily does what?

Answer 9

Produces energy

Question 10

Ribosomes primarily do what?

Answer 10

Protein synthesis