Node of Ranvier is a very short gap between Schwann cells where myelinated axons are not covered in myelin so are exposed to tissue fluid.
Control and Coordination
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10
Antibiotic resistance arises by mutation and becomes widespread when antibiotics are overused.
Infectious Diseases
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15
The Okazaki fragments are formed the parent strand that runs in the 5âē to 3âē direction.
Nucleic Acids and Protein Synthesis
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heart
Other team wins 10 points!
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star
Double points!
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shark
Other team loses 25 points!
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lifesaver
Give 25 points!
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thief
Give points!
5
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25
seesaw
Swap points!
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rocket
Go to first place!
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lifesaver
Give 25 points!
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15
The pigments in a thylakoid membrane are arranged in clusters called photosystems.
Photosynthesis
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15
Oxygen diffuses down its concentration gradient from the air in the alveoli to the blood, and carbon dioxide diffuses down its concentration gradient in the opposite direction.
Gas Exchange
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banana
Go to last place!
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gift
Win 20 points!
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fairy
Take points!
5
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25
baam
Lose 20 points!
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10
Phloem contains tubes called sieve tubes that are made from cells called sieve tube elements.
Transport in Plants
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15
Osmoregulation is the control of the water potential of blood and tissue fluid by controlling the water content and/or the concentration of ions, particularly sodium ions.
Homeostasis
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15
Increasing the substrate concentration may stop the the works of competitive inhibitor.
Enzymes
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10
Genetic drift is the gradual change in allele frequencies in a small population, where some alleles are lost or favoured.
Selection and Evolution
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10
Codominant alleles each affect phenotype when both of them are present.
Inheritance
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10
The cells in your body vary in size from about 5 Ξm to 40 Ξm.
Cell Structure
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15
Any molecule which the body recognises as foreign is an antigen.