Tissues, Organs and organ systems

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  • Created by: Aimeeb1
  • Created on: 14-11-15 12:40
What does multicellular mean?
An organism with a number of cells which work together to carry out functions.
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What is a tissue?
A group of cells with similar structure and function which work together to carry out a particular function eg muscles
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What is an organ?
Different types of tissue which work together to carry out a function eg the heart
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What is an organ system?
A group of organs all working together to carry out a particular function
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What is a differentiated cell?
A cell which has specialised to carry out a particular function eg nerve cell (neurone)
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What is the function of a muscular tissue?
To contract and relax to bring about movement
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What is a glandular tissue?
A tissue which produces substances such as enzymes and hormones (eg ovary)
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What is epithelial tissue?
A tissue which covers some parts of the body (a sort of lining of the body)
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Which 3 main tissues does the stomach contain?
Muscular tissue (to churn food) Glandular tissue (to produce digestive juices) and epithelial tissue (to cover the outside and inside of the stomach)
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What are the 3 main organs of plants?
Roots, Stems and leaves
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What tissue are plants covered in?
Epidermal
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Which tissue is responsible for carrying out most photosynthesis?
Mesophyll
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Which tissue transports water around the plant?
Xylem
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Which tissue transports sugars around the plant?
Phloem
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What are the reactants needed for photosynthesis?
water and carbon dioxide
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What are the products of photosynthesis?
Glucose and oxygen
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Which type of energy is essential for photosynthesis to take place?
Light energy
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Which organelle (part of the cell) carries out photosynthesis?
Chloroplast
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What is the name of the green substance which captures light energy (and is found in chloroplasts) to enable photosynthesis?
Chlorophyll
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Where does the water, required by plants, come from?
The soil
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What three factors can limit the rate of photoynthesis>
Shortage of light, low temperatures and shortage of carbon dioxide
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How is glucose used by plants and algae? (there are a number of ways)
It is converted to insoluble starch (for storage), used in respiration, used to produce fat, oil, cellulose (which strengthens cell walls) and proteins
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What else do plants need to absorb from the soil to produce proteins?
nitrate ions
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Which six physical factors affect organisms?
Temperature, availability of nutrients, amount of light, availability of water, availability of oxygen and availability of carbon dioxide
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Which two methods can be used to collect quantative data on the distribution of organisms?
random sampling of using quadrats and sampling along a transect
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Why should a large sample size be used when sampling data?
to make the results more vaild ( you can calculate a mean, identify anomalous results,( look for patterns, etc)
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What is another term for non-living factors?
Abiotic
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What is another term for living factors?
Biotic
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Other cards in this set

Card 2

Front

What is a tissue?

Back

A group of cells with similar structure and function which work together to carry out a particular function eg muscles

Card 3

Front

What is an organ?

Back

Preview of the front of card 3

Card 4

Front

What is an organ system?

Back

Preview of the front of card 4

Card 5

Front

What is a differentiated cell?

Back

Preview of the front of card 5
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