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BIOLOGY (respiration (release of energy from food) (glucose+oxygen= water…
BIOLOGY
living things
M.R.S G.R.E.N (movement, response, sensitivity,growth,reproduction,excretion,nutrition) respiration is how animals get energy from food.
animal cell=cell membrane and nucleus plant cell=cell membrane, nucleus and cell wall
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cells and microscopes*
animal cell=cytoplasm cell wall and nucleus plant cell=cell wall, cell membrane, cytoplasm, nucleus
tissues a small group of the same cells doing same function organ two or more tissues working together systems=a number of organs working together
microscope course focus knob=roughly height of stage wanted, fine focus knob= more accurate
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digestion enzymes
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2 types of digestion in mouth= physical and chemical. oesophagus,stomach,small intestine,liver, pancreas, large intestine
enzymes cause=growth of muscles,production of hair calls,formation of blood cells,breakdown of poisonous substances
amylase acts on starch to produce maltose, maltase breaks down maltose to produce glucose
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circulatory system
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funtions red blood cells=transport oxygen white blood cells=fight of infections plateletsclot blood plasma=transport chemicals and heat
arteries=away from heart, veins=to heart
arteries=valves,thick wall. veins=thin wall,no valve. capillaries=allow materials pass in and out of blood
heart1-vena cava 2-pulmonary artery 3-aorta 4-pulmonary vein. left side is more muscular. atrium=up ventricle=down valves, cardiac muscle
excretion
renal vein=left side,renal artery=right side. kidneys=filter wastes,2 ureters, bladder,1 urethra
skeletal muscular system
types of joints=fixed (skul) ball and socket(hip and shoulder), hinge(elbow), synvial(knee)
joints=where bones meet, tendons=connects bone to muscle,ligaments=connects bone to bone cartilage=protects ends of bones
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sensory system
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eyeball=iris-colour, lens-focus light on the retina, retina-absorb light,optic nerve-messages from eye to brain,cornea-let light pass into eye, ciliary muscle-contracts or relaxes lens depending on light
reproductive system
male= testis-make sperm, scrotum-ball sack, sperm duct-carries sperm to urethra and out of penis, penis-allows urine or sperm pass out of body
female- ovaries-eggs(ovuls) produced here, fallopian tube-fertislisation, uterus- implantation here, cervix-openig of uterus, vagina-muscular tube where penis releases sperm
menstrual cycle- day 1-5 period, day 6-12 lining f womb develops, day 13-15 fertile period,(ovulation), day 16-28 lining of womb stays in place
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contraception-male=condoms,female=cap with covers cervix, pills
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plants
root functions- anchor the plant, absorb water and minerals,some plants (carrots)store food in roots
stem function-support leaves and flower, transport
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mineral transport- transported around the flower and then phleom brings nutrients down to the roots to the soil
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