What do the pancreas and salivary glands do in the digestive system?
Produce digestive juices
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What does the liver do in the digestive system?
Produces bile to neutralise the conditions in the small intestine after the acidic conditions of the stomach
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What does the gall bladder do in the digestive system?
Stores bile
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What is the role of the small intestine in the digestive system?
Digest and absorb soluble food
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What is the role of the large intestine in the digestive system?
Absorbs water from undigested food to produce faeces
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What is the role of the Epidermal tissue in plants?
Covers the plant, contains stomata
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What is the role of the Mesophyll tissue in plants?
Where photosyntheses takes place. Contains palisade cells and spongy layer (in leaf)
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What is the role of xylem in plants and what are they made up of?
Carries water and mineral ions from the roots, flows one way, made from dead cells with no walls between
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What is the role of phloem in plants and what are they made up of?
Carries glucose from the mesophyll to the rest of the plant, travels in both directions, made from live cells with holes between
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What is the role of the stomata in plants?
Pores on the underside of the leaf to allow gases to diffuse in and out
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What does the enzyme amylase break down and into what?
Starch into sugars
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Where is the enzyme amylase produced?
Pancreas, small intestine and salivary glands
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What does the enzyme protease break down and into what?
Proteins into amino acids
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Where is the enzyme protease produced?
Pancreas, small intestine and stomach
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What does the enzyme lipase break down and into what?
Lipids into fatty acids and glycerol
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Where is the enzyme lipase produced?
Pancreas and small intestine
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Where are stem cells taken from and what diseases can they treat?
From embryos, umbilical cords and bone marrow / Can treat Parkinson's disease and paralysis
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What does homozygous mean?
Two of the same allele e.g. bb or BB
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What does heterozygous means?
Two different alleles e.g. Bb
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What is a genotype?
A description of the pair of alleles present for a characteristic e.g. Bb or bb or BB
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What is an allele?
A different form a gene that code for a different characteristic
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What is a phenotype?
A physical description of the alleles e.g. blue eyes
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What does Cystic Fibrosis cause?
Thick, sticky mucus to accumulate in the lungs and digestive system
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Is the Cystic Fibroses allele recessive or dominant?
Recessive
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What 5 ways do plants use glucose?
Respiration / Making cell walls as cellulose / Making proteins, combined with nitrate ions to make amino acids / Stored in seeds as lipids / Stored as starch
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What is Polydactyly?
Having extra fingers or toes
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Is the Polydactyly allele recessive or dominant?
Dominant, only one of the letters needed to be a sufferer (all carriers suffer also)
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Other cards in this set
Card 2
Front
What do the pancreas and salivary glands do in the digestive system?
Back
Produce digestive juices
Card 3
Front
What does the liver do in the digestive system?
Back
Card 4
Front
What does the gall bladder do in the digestive system?
Back
Card 5
Front
What is the role of the small intestine in the digestive system?
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