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45 Cards in this Set
- Front
- Back
- 3rd side (hint)
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Cell wall |
Only plants have them |
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Magnification |
Image size/real size |
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Order of measurement for small objects |
Milli -> micro -> nano -> pico |
Alphabetical order |
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How is the sperm specialised? |
Acrosome in head contains enzymes to digest membrane of egg Many mitochondria for energy Tail for swimming |
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How is the ovum specialised? |
Cytoplasm for nutrients Membrane hanged after fertilisation so only 1 sperm can enter |
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What are carbs broken down into? |
Sugars |
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What are proteins broken down into? |
Amino acids |
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What are lipids broken down into? |
Fatty acids and glycerol |
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Test for starch |
Iodine (N) yellow/orange (P) black/blue |
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Test for reducing sugars |
Benedicts (N) blue (P) green/orange/red depending on amount |
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Test for fat |
Ethanol (N) clear (P) cloudy |
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Diffusion |
High -> low concentration |
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Active transport |
Low -> high concentration |
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Interphase |
Chromosomes become visible - DNA is copied |
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Prophase |
spindle fibres appear |
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Metaphase |
Nuclear membrane breaks down - chromosomes line up along the middle of the cell |
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Anaphase |
Chromotids separate - one from each pair is pulled to each pole - chromotids are now called chromosomes |
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Telophase |
Spindle fibres disappear - a new nuclear membrane forms |
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Cytokinesis |
Cell splits in 2 |
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Cerebral hemispheres |
Voluntary movement Responsible for memory and learning |
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Medula oblongata |
Regulates heart rate and breathing |
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Cerebellum |
Controls precise and smooth movement |
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CT scan |
Radioactive tracer Parts of the brain show up 3D image |
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PET scan |
Radioactive glucose Travels where respiration occurs rapidly Indicates where there may be damage Scanner detects where glucose is |
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Dendron |
Carries impulses to cell body |
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Axon |
Carries impulses away from cell body |
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Myelin sheath |
Insulates the neurone |
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Dendrites |
Collect impulses from receptor cells |
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Sensory neurone |
Dendrite-dendron-cell body-axon-axon endings |
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Relay neurone |
Carries impulses from one part of the CNS to the other |
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Pupil |
Small hole where light enters |
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Cornea and lens |
Focus the light |
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Retina |
Contains rods and cones |
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Iris |
Controls size of pupils |
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Cones |
Sensitive to bright light - respond to different colours |
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Rods |
Sensitive at low light and respond to how dark or light something is |
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Long sighted |
Converging lens |
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Short sighted |
Diverging lens |
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Advantages and disadvantages of asexual reproduction |
Only one parent Offspring are genetically identical No variation |
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Structure of DNA |
Nucleus contains chromosomes 2 strands twisted into a double helix Base pairs held together by weak hydrogen bonds |
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Genetic engineering |
Changing the genome by introducing genes to create genetically modified organisms |
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Uses of animal cell cultures |
Test effects of drugs and other chemicals Check for cancer from sample of patient Produce antibodies |
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Uses of plant cell cultures |
Produce hundreds of clones Cells can be grown to make plant products (medicines) Produce disease free plants |
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Lytic cycle |
Splodey cells |
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Lysogenic cycle |
Kinda order 66 but not at the same time |
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