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32 Cards in this Set
- Front
- Back
- 3rd side (hint)
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Why do plants require water? |
To carry out photosynthesis |
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How are roots adapted to their function? |
It has a large surface area to absorb water |
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What is xylem? What is it’s role? |
Dead hollow tubes. To transport water upwards. |
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What is the role of the stomata and guard cells? |
Stomata allows water to leave the plant. Guard cells open and close the stomata. |
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What is transpiration? |
When water is evaporated from a plant. |
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Name and give the functions of the flower structures. |
Sepal= protects flower Nectory= makes nectar Anther= produces pollen Petals= attracts insects Ovary= produces ovule Stigma= traps pollen |
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Describe the wind method of pollination. |
The wind blows pollen from one plant to another. |
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Describe the insect method of pollination |
Insects carrying pollen from one plant to another. |
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What do the ovary and ovules become? |
Ovary -> Fruit Ovules -> Seeds |
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Describe the wind method of seeds dispersal. Describe the animal (internal) method of seeds dispersal. Describe the animal (external) method of seeds dispersal. |
Seeds have wings or parachutes. Indigestible fruits so they pass through animal undamaged. Hooks on seeds to attach onto passing animals.
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Describe sexual reproduction in plants. |
Two parents, pollen and ovules, involves seeds. |
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Describe asexual reproduction. |
Involves one parent, doesn’t need pollen and ovules, doesn’t not involve seeds |
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What is homeostasis? |
The body keeping certain conditions at a constant level. |
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Give three ways the body gains water. Give four ways the body looses water. |
Chemical reactions, drinking and eating. Faeces, sweating, urine and breathing out. |
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Identify and give the functions of the organs of the urinary systems. |
Rental artery = brings blood to kindness Kidneys = removes urea and maintains water balance Renal vein = takes blood away from kidneys Ureter = takes urine away from the bladder Bladder = stores urine |
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What are the two processes which take place on the nephron. |
Filtration and reabsorption |
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What is vasodilation? What is vasoconstriction? |
(Too hot) Arteoles on the skin surface dilate to allow heat loss. (Too cold) Arteoles on the skin surface constrict to reduce heat loss. |
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Describe the causes and symptoms of: 1) hypothermia 2) heat stroke |
1) when body temp is low Shivering, tired, memory loss 2) when body temp is high Dry skin, headache, confusion |
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Identify the organs of the digestive system |
Liver Gall bladder Pancreas Appendix Salivary glands Oesophagus Stomach Small intestine Large intestine Rectum Anus |
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What does the small intestine do? |
Allows the absorption of food molecules |
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What is the function of villi? |
They’re involved in the absorption of food molecules |
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How is the small intestine adapted to allow efficient absorption of food molecules? |
As food moves along it, the final product of digestion is absorbed into the blood stream. |
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What organs are protected by the skull, ribcage and spine? |
The skull protects the brain He ribcage protects the heart and lungs The spine protects the spinal cord |
Skull
Ribcage Spine |
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Describe the functions of the skeleton. |
Provides a framework for support, provides protection for organs and attached muscles. |
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Give two examples of a) ball and socket joints and b) hinge joints |
a) hip and shoulders b) knee and elbow |
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Describe the range of movement for a) ball and socket joints and b) hinge joints |
a) all directions b) one plane only |
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Describe the role a) ligaments and b) cartaledge |
a) hold bones together at joints b) allows smooth movement at joints |
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Describe the function of lungs |
Take oxygen from the air into our blood. |
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Describe how the following will look in a diagram 1) trachea 2) bronchus 3) bronchiole 4) alveoli |
1) long tube 2) striped short tubes 3) branch 4) fluffy bit on end of branch |
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Describe what happens when you breathe in |
Ribcage rises Diaphragm lowers
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Describe what happens when you breathe in |
Ribcage rises Diaphragm lowers
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Describe what happens when you breathe out |
Ribcage lowers Diaphragm rises |
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