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33 Cards in this Set
- Front
- Back
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Multicellular
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Having more than one cell
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Muscular Tissue
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Contracts bringing about movement
To churn the food and other contents of the stomach |
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Glandular Tissue
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Produces substances such as enzymes and hormones
To produce digestive juices including acid and enzymes |
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Epithelial Tissue
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Covers some parts of the body
To cover the inner and outer surfaces of the stomach |
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Enzymes
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Proteins which catalyse or speed up chemical reactions inside our bodies
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Hormones
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Chemical messengers produces in glands and carried by the blood to specific organs in the body
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Brain
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Contains a sensitive center called the hypothalamus, which controls the pituitary gland
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Thyroid Gland
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Produces thyroxine, which controls the rate of metabolism
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Pancreas
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Produces insulin which controls blood sugar levels
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Testes
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Produces testosterone which causes the changes at puberty and stimulates sperm production
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Ovary
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Produces oestrogen which causes the changes at puberty and helps control the menstrual cycle
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Adrenal Glands
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Produces adrenaline which prepares the body for rapid activity by increasing the heart rate and level of sugar in blood and diverting blood to muscles and brain
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Bile
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A substance produced in the liver. It emulsifies fats to prepare them for digestion
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Pancreas and Salivary Glands
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Produces digestive juices
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Stomach
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Digests food
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Liver
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Produces bile
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Small Intestine
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Digest and absorb soluble food
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Large Intestine
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Absorbs water from undigested food, producing faeces
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Epidermal Tissue
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Covers the plant
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Mesophyll
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Carries out photosynthesis
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Xylem and Phloem
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Transport of substances around the plant
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Photosynthesis
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A chemical change that occurs in the leaves of green plants. It uses light energy to convert carbon dioxide and water into glucose. Oxygen is produced as a by-product of photosynthesis
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Diffuse
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When particles spread out from a region of higher concentration to a region of lower concentration
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ADAPTATION: Chlorophyll
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To absorb sunlight
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ADAPTATION: Large surface area
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To absorb more light
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ADAPTATION: Stomata
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To let carbon dioxide diffuse into the leaf
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ADAPTATION: Thin
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Short distance for carbon dioxide to diffuse into leaf cells
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ADAPTATION: Network of Veins
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To support the leaf and transport water and carbohydrates
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ADAPTATION: Thin, waxy cuticle made of wax
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To protect the leaf without blocking out light
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ADAPTATION: Thin, transparent epidermis
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To allow more light to reach the palisade cells
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ADAPTATION: Layer of palisade cells on the top surface
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To absorb light
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ADAPTATION: Many chloroplasts in the palisade cells
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To increase absorption of light
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ADAPTATION: Spongy mesophyll inside the leaf
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Air spaces allow carbon dioxide to diffuse through the leaf, and increase the surface area
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