OCR A2 Biology (F215)

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  • Created by: gug
  • Created on: 27-05-13 19:08
What is a gene?
A length of DNA that codes for one or more polypeptides
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What is the first stage of protein synthesis?
Transcription
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What enzyme unwinds and unzips the DNA double strand?
DNA Helicase
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What part of the Ribosome does the mRNA codons bind to?
Small subunit
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What is the chemical that activates some proteins?
cAMP
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Vitamin D deficiency leads to.............
Rickets
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What part of the Operon does RNA Polymerase bind to?
Promoter region
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What is the 2nd stage in Apoptosis?
Cytoplasm becomes dense and organelles tightly pack together
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What is the genotype?
Alleles present within an organism's cell, for particular traits
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Discontinuous variation has..........
distinctive categories
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One desirable phenotypic feature of dairy cows is.............
large udders
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What is an Explant?
Small piece of tissue taken from plant to be cloned
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What type of microorganism(s) produces Penicillin?
Fungus
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............cuts cuts DNA into smaller fragments
Restriction enzyme
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What technique separates the fragments?
Electrophoresis
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Insulin is produced in .............
E.Coli bacteria
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A ................. is a place where an organism lives
habitat
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Gross primary productivity is..........
rate at which plants convert light energy into chemical energy
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The process of fixing nitrogen gas into nitrates
Nitrogen fixation
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A type of nitrogen fixing bacteria
Rhizobium
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....specific competition happens within a species
Intra
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What is the type of tropism where a plant grows toward a light stimulus
Phototropism
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.............promote seed germination
Gibberellins
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What part of the brain is responsible for conscious thought?
Cerebrum
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What is split into somatic and autonomic neurones?
Motor neurones
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What is the transmitter substance released in the sympathetic nervous system?
Noradrenaline
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The muscle fibre membrane is known as the...........
Sarcolemma
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What type of muscle is spindle shaped?
Involuntary
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What is released from the Hypothalamus into the Pituitary gland, during the fight or flight response?
Corticotropin releasing factor
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Other cards in this set

Card 2

Front

What is the first stage of protein synthesis?

Back

Transcription

Card 3

Front

What enzyme unwinds and unzips the DNA double strand?

Back

Preview of the front of card 3

Card 4

Front

What part of the Ribosome does the mRNA codons bind to?

Back

Preview of the front of card 4

Card 5

Front

What is the chemical that activates some proteins?

Back

Preview of the front of card 5
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