Biology Unit 2-Tissues and Organs

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What is a Tissue?
A group of specialised cells that have a similar structure and function
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What are the three different types of tissue and their functions?
MUSCULAR- contracts to bring about movement GLANDULAR-produces substances such as enzymes and hormones. EPITHELIAL-covers some parts of the body
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What is an Endocrine Gland?
A gland that produces and secretes a hormone directly into the blood.
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What is the function of the Brain?
It contains a sensitive centre (hypothalamus) which controls the pituitary gland
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What is the function of the Thyroid Gland?
Produces thyroxine which controls the rate of metabolism
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What is the function of the Adrenal Gland?
Produces adrenaline which prepares the body for rapid activity by increasing the heart rate and level of blood sugar and diverting blood to the muscles and brain
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What is the function of the Testes?
Produces testosterone which causes changes at puberty and stimulates sperm production
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What is the function of the Ovaries?
Produces oestrogen which causes changes at puberty and controls the menstrual cycle
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What is an Organ?
A group of different tissues that work together to carry out a particular function, e.g. heart and lungs
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What is an Organ System?
A group of organs that work together to complete a specific function
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Explain the organ system of the stomach
MUSCULAR - to churn the food and other contents of the stomach GLANDULAR- to produce digestive juices including acid and enzymes EPITHELIAL- to cover the inner and outer surfaces of the stomach
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What are the main organ systems in the body?
Digestive System, Respiratory System, Reproductive System and the Nervous System
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What is the function of the Digestive System?
A group of organs working together to convert food into energy and basic nutrients to feed the entire body.
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What are the parts of the Digestive System and their function?
PANCREAS AND SALIVARY GLANDS-Produce digestive juices. STOMACH-Digests food. LIVER-Produces bile SMALL INTESTINE-Digest and absorb soluble food LARGE INTESTINE-Absorbs water from undigested food, producing faeces.
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What are the main plant tissues and their functions?
EPIDERMAL TISSUE-Covers the plant MESOPHYLL TISSUE-Carries out photosynthesis XYLEM AND PHLOEM-Transport of substances around the plant (water and food)
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What is the function of Chlorophyll?
To absorb sunlight
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What is the function of the Palisade Mesophyll Cell?
Has a large surface area to absorb more sunlight
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What is the function of the Stomata?
To let carbon dioxide diffuse into the leaf
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What is the function of a Network of Veins?
To support the leaf and transport water and carbohydrates
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Card 2

Front

What are the three different types of tissue and their functions?

Back

MUSCULAR- contracts to bring about movement GLANDULAR-produces substances such as enzymes and hormones. EPITHELIAL-covers some parts of the body

Card 3

Front

What is an Endocrine Gland?

Back

Preview of the front of card 3

Card 4

Front

What is the function of the Brain?

Back

Preview of the front of card 4

Card 5

Front

What is the function of the Thyroid Gland?

Back

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