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What are the main food types?
Fats
Carbohydrates
Protein
What is used to test for glucose?
Benedicts solution
______ turns black in the presence of starch?
Iodine
What is protein composed of?
Amino acids
What is fat built up of?
Fatty acids and glycerol
What elements do carbohydates and fats contian?
Hydrogen (H)
Carbon (C)
Oxygen (O)
What elements does protein contain?
Hydrogen (H)
Carbon (C)
Oxygen (O)
Nitrogen (N)
What do we need food for?
Fuel - for movement and body heat
Building material - for growth and tissue repair
For fighting disease
What teeth do humans have?
Molars
Premolars
Incisors
Canines
What teeth do carnivores have?
Molars
Premolars
Incisors
Canines
What teeth do herbivores have?
Molars
Premolars
(Gap)
Incisors
Horny pad
What is digestion?
The breakdown of large insoluble food particles into smaller soluble particals
What are the organs of digestion?
Mouth
Salivary glands
Oesophagus
Stomach
Liver
Gall bladder
Pancreas
Small intestine
Large intestine
Rectum
Anus
Amylase is found in the....?
saliva
What breaks down protein into peptides then amino acids?
Proteases
What breaks down fat into fatty acid and glycerol?
Lipase
Where is
bile
made?
In the liver
Where is bile stored?
In the gall bladder
What does bile do?
It emulsifies fats (breaks them down into smaller droplets)
The _________ creates digestive juices containing enzymes which is passed into the small intestine?
pancreas
Why is the small intestine good at its job?
As it has a large surface area and a good blood supply
Where are the villi found?
In the
small
intestine
Glucose and amino acids diffuse into the _______ in the villi?
capillaries
Fatty acids and glycerol diffuse into _____ in the villi?
the lacteal
Why can soluble food diffuse across the villi efficiently?
As it is only one cell thick
Where is water reabsorbed?
In the
large
intestine
Describe peristalsis
The muscles behind the food
contract
and the muscles in front of the food
relax
- moving the food along the alimentary canal
What are the two types of reproduction?
Asexual (one parent)
Sexual (two parents)
Where is sperm made?
In the testes
Where are eggs stored?
In the ovaries
Define fertilisation
Fertilisation is when the nuclei of the sperm and the egg fuse together - creating a zygote
What are the two types of fertilisation?
Internal
External
Why is internal fertilisation essential among land animals?
As there is no water in the animal's immediate environment to carry the sperm to the eggs
Give two examples of things which would diffuse from mother to baby through the placenta?
Oxygen
Food
Give two examples of things which would diffuse from baby to mother through the placenta?
Carbon Dioxide
Waste
How is the foetus attatched to the placenta?
With the umbilical chord
The less parental care the young recieve the ______ the number of offspring produced?
greater
What may eggs be destroyed by in external fertilisation?
Being eaten
Not being fertilised
Being diseased
What do your kidneys do?
Filter your blood and regulate the water content in your body
How do mammals gain water?
By drinking
By eating
Through respiration
How do mammals lose water?
Via:
Sweat
Urine
Breathing
Faeces
What chemical in your brain controls your water balance?
Antidiuretic hormone (ADH)
If there is too much water in your body what will happen to the levels of ADH released?
They will decrease
If there is not enough water in your body what will happen to the levels of ADH released?
They will increase
What poisonous substance do the kidneys remove?
Urea
What is urea composed of?
Excess amino acids which have been broken down
The filtering of the blood is done by millions of tiny tubes called ________?
nephrons
What does a nephron consist of?
Glomerulus, bowman's capsule, collecting duct and a network of capillaries
What useful substances are reabsorbed back into the blood?
Glucose
Vitamins
What machine will a person be put on if they suffer form kidney failure?
A dialysis mahcine
What other treatment can be used to treat kidney failure?
A kidney transplant
What do animals respond to?
Stimuli
What is a stimulus?
A detectable change in the environment by an organism
Why will a woodlouse move towards moisture?
To keep its breathing system moist
Why will a blowfly maggot move away from light?
To obtain food and for protection from predators
The change in light intensity between night and day would be an example of a......?
daily change in the environment
Organisms that regularly change their behaviour to respond to regular changes in the environment show _______ behaviour?
rhymical
The stimulus that sets off a change is called a _______ stimulus?
trigger
Give an example of rhythmical behaviour
Migration
Hibernation
Author
Anonymous
ID
63159
Card Set
Animal Survival
Description
Standard Grade Biology - Animal Surivival
Updated
2011-01-31T17:43:34Z
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