where respiration reaction happens. produces energy for the cell.
4 of 26
what happens in the cytoplasm?
where chemical reactions take place. contains enzymes to control the reactions.
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what extra parts do plant cells have that animal cells don't?
vacuole, cell wall, chloroplasts.
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what is the job of the cell wall?
supports cell and strengthens it.
7 of 26
what is a cell wall in a plant cell made of?
made of cellulose.
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what is the job of the chloroplasts?
where photosynthesis happens. produces glucose for the plant.
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what allows photosynthesis to happen in chloroplasts?
chloroplasts contain chlorophyll.
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what is cell sap?
weak mixture of sugars and salts.
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where is cell sap found?
inside the vacuole in a plant cell.
12 of 26
describe the parts in a yeast cell.
yeast cell has a cell wall and cell membrane, has cytoplasm, and a nucleus containing genetic material.
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does a bacterial cell have a nucleus?
no- the cells genetic material sits in the cytoplasm of the cell.
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what does a yeast cell and a bacterial cell have in common?
they are both single celled organisms. a bacterial cell is a microorganism.
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what is the definition for diffusion?
particles moving from am area of high concentration to an area of low concentration.
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why does diffusion only happen in solutions and gases?
the particles are free to move around randomly.
17 of 26
name three substances that can pass through a partially permeable membrane.
examples: oxygen, amino acids, glucose.
18 of 26
name a substance that can't pass through a partially permeable membrane.
examples: starch, proteins.
19 of 26
name one specialised animal cell.
examples: red blood cells, egg cell, sperm cell.
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name one specialised plant cell.
examples: palisade leaf cell, guard cells.
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how is a red blood cell specialised?
no nucleus so there is more room to carry haemoglobin, concave shape to increase surface area for absorbing oxygen.
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how is a palisade leaf cell specialised?
full of chlorophyll for photosynthesis, tall to increase surface area for absorbing carbon dioxide, thin so lots can be packed together at top of leaf, found near the top of the leaf so it absorbs more sunlight.
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how is a sperm cell specialised?
stream lined head and tail for swimming, lots of mitochondria to produce energy.
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how is a guard cell specialised?
kidney bean shape to allow it to open/close the stomata.
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