Brainscape's Knowledge GenomeTM

Browse over 1 million classes created by top students, professors, publishers, and experts.


See full index

Biology GCSE > B3 Organisation And Digestive System > Flashcards

B3 Organisation And Digestive System Flashcards

You may prefer our related Brainscape-certified flashcards:
GCSE Geography - AQA flashcards AP® Biology flashcards GCSE Religious Studies - Edexcel Route B flashcards GCSE Religious Studies - Eduqas Route A flashcards GCSE Religious Studies - Edexcel Route A flashcards GCSE Religious Studies - Eduqas Route B flashcards Biology 101 flashcards
1
Q

What is a tissue?

A

A tissue is a group of cells with similar structure

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
2
Q

What is an organ

A

A collection of tissues

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
3
Q

What is an organ system

A

A group of organs that work together to perform a specific function within the human body

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
4
Q

So what makes up an organism

A

Cell, tissues, organs and organ systems (in order of smallest to largest)

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
5
Q

Parts of the digestive system

A

Mouth, salivary glands, oesophagus, stomach, liver, pancreas, small intestine, large intestine

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
6
Q

Structure source and function of protein

A

Structure: Long chain of amino acids
Source: Meat, fish, eggs, nuts beans
Function: Helps muscles, basis of all enzymes, hormones

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
7
Q

Structure source and function of short chain carbohydrates

A

Structure: Short chain glucose
Source: Chocolate, lucozade, haribo
Function: Quick energy release

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
8
Q

Structure source and function of long chain carbohydrates

A

Structure: Long chain starch
Source: Potatoes, rice, pasta, bread
Function: Long energy release, Energy storage

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
9
Q

Structure source and function of lipids

A

Structure: Fatty acids and Glycerol
Source: Lard, meat, oil and butter
Function: Energy store, cell membrane

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
10
Q

What are enzymes

A

Large 3D molecules that act as biological catalysts (speed up reactions) meaning they control your metabolism

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
11
Q

How do enzymes work

A

The enzyme has a specific active site which fits the specific substrate, substrate splits and leaves the product detached from the active site allowing the enzyme to be used again.

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
12
Q

When testing for starch what colour will the food go if starch is present

A

Blue-black

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
13
Q

When testing for sugar what colour will the food test if sugar is present

A

Brick red

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
14
Q

When testing for lipids what colour will the food turn if lipids are present

A

A cloudy white layer will form at the top

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
15
Q

When testing for protein what colour will the food turn if protein is present

A

Purple

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
16
Q

What is the equation for rate

A

Rate= X (any variable) divided by time

17
Q

What enzyme digests carbohydrates

A

Amylase does. Amylase is produced in your salivary glands and catalyses your body’s reaction with starch .

18
Q

What enzyme digests proteins

A

Protease does. The breakdown of protein happens in the stomach and small intestine.

19
Q

What enzyme digests lipids

A

Lipase does. The breakdown of fatty acids and glycerol happens in the small intestine but lipase is produced in the pancreas.

20
Q

What does chopping food in the mouth do to benefit digestion

A

It increases surface area of food for enzymes

21
Q

What do the salivary glands do

A

Produce amylase to break down starch into simple sugar

22
Q

What does the oesophagus do

A

Through peristablisis it pushes food into the stomach

23
Q

What does the stomach do

A

Has stomach acids creating the right pH for protease to work at to break down protein

24
Q

What does the liver do

A

Breaks up fat with bile and mixes with liquids in emulsification

25
Q

What does the pancreas do

A

Has hormones that control the glucose levels in the blood

26
Q

What does the small intestine do

A

Keeps food moving. Last enzymes break food into small molecules which enter the blood.

27
Q

What does the large intestine do

A

Solidifies the indigestible food left to be passed through the anus

28
Q

Carbohydrase’s substrate is…

A

Starch

29
Q

Protease’s substrate is…

A

Protein

30
Q

Lipase’s substrate is…

A

Lipids

31
Q

How are enzymes biological catalysts

A

They speed up/control the speed of chemical reactions in the digestive system

32
Q

How do enzymes work

A

They have an active site, when the correct substrate of the food comes along, only that substrate will fit in the active site. After the reaction is done the substrate product leaves and the active site can be used again.

Biology GCSE (9 decks)

Brainscape helps you reach your goals faster, through stronger study habits.
© 2024 Bold Learning Solutions. Terms and Conditions