B1 Revision Cards

HideShow resource information
  • Created by: Franke
  • Created on: 04-06-13 18:14
Blood Pressure Is Measured in....
Millimeters Of Mercury (mmHg)
1 of 64
What Is Systolic Pressure?
The Higher Measurement when the heart beats pushing blood through the arteries
2 of 64
What is Diastolic Pressure?
The Lower Measurement when the heart rests between beats
3 of 64
What Can High And Low Blood Pressure Lead To?
HIGH; Blood vessels may burst causing damage to brain (stroke) and kidney damage. Low; Dizziness and fainting, the blood supply to brain is reduced and there is poor circulation in fingers and toes.
4 of 64
What is the result of a increased metabolic rate?
Chemical reactions in cells work faster
5 of 64
What are Carbohydrates made up of?
Simple sugars like glucose
6 of 64
What are fats made up of?
Fatty acids and glycerol
7 of 64
What are proteins made up of?
Amino Acids
8 of 64
Where are carbohydrates stored?
In the liver as Glycogen
9 of 64
Where are fats stored?
Under the skin as adipose tissue
10 of 64
Where are proteins stored?
They can't be stored, they must be converted into other Amino Acids
11 of 64
What is Fitness and Health?
Fitness; The ability to do physical activity and Health; Being disease free
12 of 64
Effects of Smoking?
Increases heart rate and blood pressure
13 of 64
Why don't smokers have as much oxygen in there blood as non-smokers?
Because Carbon Monoxide combines with Haemoglobin, preventing it combining with oxygen
14 of 64
What is Heart disease caused by?
Restricted blood flow to heart muscle
15 of 64
what does a build up in plaque cause?
Blood clots and thrombosis. It can also block the artery
16 of 64
How do you calculate EAR?
EAR in grams = 0.6 x body mass in kilograms
17 of 64
What is Kwashiorkor?
A condition in developing countries which effects primarily children with too little protein in their diet
18 of 64
What are first class and second class proteins?
First class; Meat and Fish. Second class; plant proteins
19 of 64
How do you calculate BMI?
BMI=(Mass in Kilograms)/((height in m^2)) (Mass in kilograms divided by height in meters squared)
20 of 64
What is a vector?
A carrier of a disease, they are not affected by the disease. Example is a mosquito
21 of 64
What is a parasite?
A organism which feeds off of another living organism. An example is Plasmodium
22 of 64
What is a host?
Where a Parasite lives. An example is humans
23 of 64
What is a pathogen?
A disease causing organism which produces toxins
24 of 64
What is an antibody?
The protection made by the body to fight pathogens. There is a different antibody for each type of pathogen, white blood cells produce antibodies.
25 of 64
What is an antigen?
Antigens live on the surface of pathogens and these are what antibodies lock onto
26 of 64
Immunisation steps?
Step 1: Inject harmless pathogen carrying antigens. Step 2; Antigen triggers a response by white blood cells and they produce antibodies. Step 3; Memory cells remain in the body providing long lasting immunity from that disease.
27 of 64
What do antibiotics fight and what do they do to the pathogens?
Antibiotics fight Bacteria and Fungi, they kill pathogens
28 of 64
What do Anti-viral drugs fight and what do they do to the pathogens?
Anti viral drugs fight viruses but only slow down the pathogen
29 of 64
What could happen if you use antibiotics too frequently?
The bacteria becomes resistant and these resistant forms become more common than non resistant forms
30 of 64
In the eye, what are light rays refracted by?
Cornea and Lens
31 of 64
What is binocular vision?
Your eyes can judge distance by comparing images from both eyes, the more different the images, the closer the object
32 of 64
How does the eye focus on distant objects?
The ciliary muscles relax and the suspensory ligaments tighten so lens has less rounded shape
33 of 64
How does the eye focus on near objects?
Ciliary muscles contract and suspensory ligaments slacken so the lens has a more rounded shape
34 of 64
What are nerve cells also called?
Neurones
35 of 64
Where do nerve impulses travel?
down the Axon
36 of 64
Recite the reflex action
stimulus- receptor- sensory neurone- central nervous system- motor neurone- effector- response
37 of 64
Recite the spinal reflex
Receptor- sensory neurones- relay neurone- motor neurone- effector
38 of 64
What are the neurone's adaptions?
Being long, having branched ends called dendrites and having an insulator sheath
39 of 64
What is the gap between neurones called?
a synapse
40 of 64
Impulse steps?
Step 1; the impulse arrives which triggers the release of a transmittter substance. Step 2; this diffuses across the synapse. Step 3; transmitter substance binds with receptor molecules in membrane of next neurone. Step 4; Impulse continues.
41 of 64
What does a stimulant do to the neurotransmitter substances?
Makes more go along the synapses
42 of 64
What does cigarette smoke cause on the epithelial lining?
The cilia to stop moving on the epithelial lining of the trachea, bronchi and bronchioles
43 of 64
What is Smokers cough?
Where smokers get dust and particulates irritating the epithelial lining
44 of 64
What does drinking alcohol increase?
Reaction time and risk of accidents
45 of 64
The liver is damaged when....
It has to break down toxic chemicals like alcohol, this is called cirrhosis of the liver
46 of 64
What is Homeostasis
Homeostasis is keeping a constant internal temperature.
47 of 64
What do your Automatic Control Systems do?
Keep temperature, water and carbon dioxide levels steady
48 of 64
What is the bodies optimum temperature?
37 degrees celsius
49 of 64
Blood temperature is monitored by...
The hypothalamus gland in the brain
50 of 64
Reaction to extreme temperatures controlled by...
Nervous and hormonal systems
51 of 64
What is vasoconstriction?
The narrowing of small blood cells in the skin which causes less blood flow and less heat transfer
52 of 64
What is vasodilation?
The widening of small blood cells in the skin which causes more blood flow and more heat transfer
53 of 64
What is Insulin?
A hormone which controls blood sugar levels, it converts glucose into glycogen
54 of 64
What is Phototropism?
Plant's growth response to light
55 of 64
What is Geotropism?
Plant's growth response to gravity
56 of 64
Where are auxins made and How do auxins effect plants?
Auxins are made in the tip and root of plants, They are involved in photo and geo tropism and more of them can be found in the shady side of a plant. They make plants grow, so that is why plants curve towards the light.
57 of 64
When are recessive alleles present?
When the dominant allele is absent
58 of 64
How many pairs of chromosomes do humans have?
23 pairs
59 of 64
Sex chromosomes determine...
The sex of a child, Females have XX and Males have XY
60 of 64
Which sex chromosomes do the egg and sperm carry?
Egg carries X chromosome and Sperm can carry X or Y
61 of 64
What does Homozygous mean?
Identical alleles
62 of 64
What does Heterozygous mean?
Different alleles
63 of 64
Inherited disorders are....
Faulty alleles most of which are recessive.
64 of 64

Other cards in this set

Card 2

Front

What Is Systolic Pressure?

Back

The Higher Measurement when the heart beats pushing blood through the arteries

Card 3

Front

What is Diastolic Pressure?

Back

Preview of the front of card 3

Card 4

Front

What Can High And Low Blood Pressure Lead To?

Back

Preview of the front of card 4

Card 5

Front

What is the result of a increased metabolic rate?

Back

Preview of the front of card 5
View more cards

Comments

No comments have yet been made

Similar Biology resources:

See all Biology resources »See all resources »