SCI T2: Cells & the Digestive System
Terms in this set (42)
List differences between animal and plant cells.
Animal cells do not have a cell wall and chloroplast. The Animal and Plant cell both have vacuoles, but the Plant cell has larger and more vacuoles. Animal cells also have a round, irregular shape, while plant cells have fixed, rectangular shapes.
Cell that has a nucleus and other membrane-bound organelles.
A cell that has no distinct membrane-bounded organelles. Usually bacteria
Controls the cell. Separated from cytoplasm by nuclear membrane. Contains DNA and controls the reproduction of the cell.
Site of chemical reactions
Controls what can enter and exit the cell
Site of respiration
The protein synthesisers in the cell
It strengthens the cell
site of photosynthesis in plant cells
It stores water and dissolved substances; contains cell sap to keep the cell turgid.
The process of breaking down food so that the nutrients can be absorbed into your blood and carried to every cell in you body.
Used to bite and chew your food to break it down into smaller pieces.
Food and saliva are mixed; teeth mechanically break food into smaller pieces.
It rolls food into a bolus that gets pushed
to the back of your mouth to be swallowed.
It stores bile which breaks up fats into smaller pieces to be carried to the rest of the body.
Makes pancreatic juice, which is alkaline so it neutralises the stomach acid.
This is where almost totally digested food are absorbed into your bloodstream.
Doesn't play any part in the digestive system but can help fight some diseases.
Makes saliva which has enzymes that start breaking down starch in food.
It has a flap of tissue that closes off your trachea so that food doesn't go down to your lungs and cause you to choke.
It carries the food to the stomach.
It makes bile, which breaks down fats, destroys poisons, and stores vitamin A, vitamin D and iron.
A temporary food storage area that breaks down proteins using gastric juice. It also kill germs and and has a suitable environment for protein digestion.
It is where undigested stuff passes through to absorb any remaining nutrients so they can be reused by the body.
To pass the faeces through it when you go to the toilet.
Physically breaking down food into smaller pieces
Breaking food into smaller pieces using molecules called enzymes
Long shaped cells that allow you to detect touch, smell, taste, sound, light and pain.
Long and elastic cells that allow you to move. There are different types of muscle cells such as smooth and skeletal muscles.
Red Blood Cells
Small cells that carry oxygen around the body.
White Blood Cells
Larger than red blood cells that get rid of the body's diseases
Cells surrounded by minerals that make the cells hard and strong keep you upright.
Lung epithelial cells
Cells with hair-like tips that help protect you by stopping dust and fluid from getting down your windpipe.
Adipose tissue cells
Round cells that store fat for later energy use
Flat cells that form your skin so they can cover and protect your body better.
Long tailed cells that swim towards egg cells to fertilise them.
The largest cells in the human body that become fertilised when a sperm cell moves into it.
Bite and cut food
Pointed teeth that stab food and tear it
Molars and Premolars
Are broad and flat; grind and shred food; found at back of mouth
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