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GCSE Revition > Bio Organisation > Flashcards

Bio Organisation Flashcards

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1
Q

Red bllod cells contain what

A

Heamoglbolin

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2
Q

What is the purpose of haemoglobin

A

it binds oxygen to transport it from the lungs to the tissues and cells

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3
Q

do red blood cells have a nucleus

A

No

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4
Q

What do white blood cells protect us form

A

pathogens they fight off infections

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5
Q

what are plattlets

A

plattlets trigger blood clotting

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6
Q

Why is the left side of the heart thicker than the right side

A

Because it has to pump blood around the body

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7
Q

How many chambers are there in the heart

A

four

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8
Q

what are the four chambers called

A

left and right atria ( which receive blood from veins )
left and right ventricles ( which pump blood out into arteries )

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9
Q

Where dose blood enter from

A

the atria

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10
Q

What are valves for in the heart

A

To prevent back flow

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11
Q

What is a non-communicable disease

A

A disease which cannot be spread through pathogens or physical contact

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12
Q

What is a communicable disease

A

A disease which is spread through physical contact and pathogens

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13
Q

2 examples of communicable disease

A
  • flu
    covid-19
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14
Q

2 examples of a non- communicable disease

A

Cancer
type 1 diabetes

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15
Q

What properties do enzymes have

A

Large proteins
work best at specific temp and PH called the optimum

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16
Q

what is the lock and key theory

A

the chemicals that reacta is called the substrate ( key ) and it fits into the enzymes active site (lock)

17
Q

What can high temps of PH do to the enzymes

A

Change shape ( denaturing )

18
Q

Where can enzymes be found in the human body

A

The silvary galnds and liver

19
Q

What are a group of cells with a similar function called

A

Tissues

20
Q

Is the heart an organ

A

Yes

21
Q

What is amylase

A

an enzyme which breaks down starch

22
Q

Protease definition

A

An enzyme which breaks down proteins into amino acids

GCSE Revition (12 decks)

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