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What are the main food types?
What is used to test for glucose?
______ turns black in the presence of starch?
What is protein composed of?
What is fat built up of?
Fatty acids and glycerol
What elements do carbohydates and fats contian?
What elements does protein contain?
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?
What teeth do carnivores have?
What teeth do herbivores have?
What is digestion?
The breakdown of large insoluble food particles into smaller soluble particals
What are the organs of digestion?
Amylase is found in the....?
What breaks down protein into peptides then amino acids?
What breaks down fat into fatty acid and glycerol?
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?
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?
Glucose and amino acids diffuse into the _______ in the villi?
Fatty acids and glycerol diffuse into _____ in the villi?
Why can soluble food diffuse across the villi efficiently?
As it is only one cell thick
Where is water reabsorbed?
The muscles behind the food
and the muscles in front of the food
- 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
Fertilisation is when the nuclei of the sperm and the egg fuse together - creating a zygote
What are the two types of fertilisation?
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?
Give two examples of things which would diffuse from baby to mother through the placenta?
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?
What may eggs be destroyed by in external fertilisation?
Not being fertilised
What do your kidneys do?
Filter your blood and regulate the water content in your body
How do mammals gain water?
How do mammals lose water?
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?
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 ________?
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?
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?
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?
The stimulus that sets off a change is called a _______ stimulus?
Give an example of rhythmical behaviour
Biology Animal Survival
Standard Grade Biology - Animal Surivival