Biology


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  • Created by: joelletg
  • Created on: 12-03-14 19:58
what controls the cells activities?
Nucleus
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where do the chemical reactions take place?
cytoplasm
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what controls the movement of materials in and out of the cell?
cell membrane
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where is energy released during anaerobic respiration?
in the mitochondria
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where does protein synthesis take place?
ribosomes
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what features do animal cells have?
nucleus, cytoplasm, cell membrane, mitochondria, ribosomes
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what features do plant cells have that animal cells don't have?
cell wall, chloroplasts, vacuole
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what is rigid and made of cellulose and for support?
cell wall
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what contains chlorophyl for photosynthesis?
chloroplasts
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what contains the cell sap?
vacuole
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algae has many similar features to what cell?
plant cell
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what features do bacteria cells have?
cell membrane and a cell wall that surrounds the cytoplasm
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what do bacterial cells not have?
a nucleus
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where is genetic material stored in a bacteria cell?
the cytoplasm
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how can you see bacteria?
through a powerful microscope or if they are in bacteria colonies
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yeast is a ......... celled organism.
single
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what features does a yeast cell have?
nucleus, cytoplasm and a membrane surrounded by the cell wall
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if a cell has a lot of mitochondria, what does it need?
a lot of energy
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if a cell has many ribosomes, what is it making?
a lot of protein
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cells with tails are able to do what?
move
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receptor cells have a special structures which help them to do what?
detect stimuli
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what do neurones do?
they are specialised to carry impulses from receptors to the CNS
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what will plants with many chloroplasts be doing?
photosynthesising
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why do root hair cells increase the surface area of the root?
so that it can absorb water and mineral ions efficiently
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what is diffusion?
the spreading out of particles of gas, or of any substance in a solution going from an area of high concentration to an area of low concentration
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what is net movement?
movement in and out of cells that depends on the concentration of particles on each side of the
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what is concentration gradient?
the difference in concentration between 2 areas
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if the difference in concentration is larger, what happens to the diffusion?
it is at a faster rate
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what is a tissue?
a small group of cells with similar structure and function
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what do animal tissues include?
muscle tissue, glandular tissue and epithelial tissue
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what does muscle tissue do?
contracts to bring about movement
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what does glandular tissue do?
produces substances such as enzymes or hormones
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what does epithelial tissue do?
covers some parts of the body
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what to plant tissues include?
epidermal tissue, mesophyll, xylem and phloem
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what does epidermal tissue do?
covers the plant
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what does mesophyll do?
can photosynthesise
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what do the xylem and phloem do?
transport substances round the plant
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what are organs made of?
tissues
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what is the stomach organ made of?
muscular tissue to churn stomach contents, glandular tissue to produce dijestive juices, epithelial to cover the out and in side of the stomach
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what are the plants organs?
the leaf, the stem and the root
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what do groups of organs do?
form organ systems to perform a particular function
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name an organ in the digestive system?
small intestine or gland or stomach or liver or large intestine
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Other cards in this set

Card 2

Front

cytoplasm

Back

where do the chemical reactions take place?

Card 3

Front

cell membrane

Back

Preview of the back of card 3

Card 4

Front

in the mitochondria

Back

Preview of the back of card 4

Card 5

Front

ribosomes

Back

Preview of the back of card 5
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