food and digestion - excellence questions

Question 1

what do carbohydrate sugar do ?

Answer 1

short-term energy

Question 2

what do lipids do ?

Answer 2

long term energy
build cell membranes

Question 3

what do carbohydrates starch do ?

Answer 3

long-term energy

Question 4

what do proteins do ?

Answer 4

growth and repair of cells

Question 5

what does fibre do ?

Answer 5

helps movement in digestive track

Question 6

what does vitimans/minerals do ?

Answer 6

help in chemical reactions

Question 7

how can you tell a skull is a carnivore ?

Answer 7

pointy canines and incisors , pointed molars to tear , grind meat

Question 8

how can you tell if a skull is a herbivore ?

Answer 8

herbivores have ridged grinding surfaces on their teeth and a long, toothless gap between the cheek teeth and the front of the jaw.

Question 9

simple carbs is also know as what ?

Answer 9

glucose

Question 10

complex carbs is also known as what ?

Answer 10

starch

Question 11

describe how you will test for the presence of the simple sugar glucose ?

Answer 11

we use benedicts solution , which will need heating . We heat this solution by heating a beaker full of water , then placing the tubes holding the solution and food inside the beaker . It goes from blue to green , yellow , orange , or red if glucose is present .
- green ( not much ) , yellow/orange ( moderate ) , red ( a lot )

Question 12

biuret solution is a mixture of what ?

Answer 12

sodium hydroxide and copper sulphate

Question 13

biuret solution is used to test what ?

Answer 13

protein

Question 14

what is used to test for starch

Answer 14

Iodine

Question 15

function of villi

Answer 15

to create more surface area to absorb nutrient from food

Question 16

stages of digestion and where ?

Answer 16

ingestion - mouth / oesophagus
digestion - mouth digest starch , small intestine digest starch , protein , lipids , stomach digest protein
absorbing - small intestine for nutrients , large intestine for water
egestion - rectum stores waste , anus ejects waste

Question 17

what is a healthy balanced diet ?

Answer 17

A healthy balanced diet is when you eat the correct types and the correct amount of nutrients for your age and gender , and you do physical exercise to ensure that input of energy = output of energy

Question 18

how does having a healthy balanced diet affect hauora ( example ) =

Answer 18

The way diest can affect hauora is if I dont eat enough . A consequence of this is regular headaches and being tired . This affects my physical well-being . As i get tired , I get triggered and cry alot . This is affecting my emotional well-being. People dont like to be around me because of this . This affects my social- wellbeing. Being tired I cant think of my purpose in life , affecting my spiritual well-being.

Question 19

What enzyme breaks down food in that mouth ?

Answer 19

Amylase_ is the
chemical that breaks down food in the
mouth.

Question 20

Name the enzymes in the small intestine and their function

Answer 20

amylase breaks down starch into
simple sugars
Protease breaks down protein into
amino acids
Lipase breaks down lipids (fats) in to
fatty acids and glycerol