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2024 AQA AS BIOLOGY PAPER 2 EXAM WITH CORRECT ANSWERS
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2024 AQA AS BIOLOGY PAPER 2 EXAM WITH CORRECT ANSWERS
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2024 AQA AS BIOLOGY PAPER 2EXAM WITH CORRECT ANSWERS
what term is used to describe the different structures of a glucose and b
glucose? [1mark] - CORRECT-ANSWERShydroxyl group
describe how the result from the colorimeter can identify the fruit juice
containing the higher sugar content [1 mark] - CORRECT-ANSWERSjuice b
suggest how pna affected the transcription of the section of dna [2 marks] -
CORRECT-ANSWERStight binding to mrna due to the strand displacement in
a dna target
what is microvilli? - CORRECT-ANSWERSSmall projections that increase
surfaces area for absorption and diffusion. many mitchondria release atp for
active transport
illeum question - CORRECT-ANSWERS41,0.32(micro surface area.321 cell
surface area
what is role and properties of water? - CORRECT-ANSWERSacts as a habitat
for organisms,make up cytoplasm,tissue fluid,blood,xylem and
phloem.dipolar. partially positive hydrogen partially negative oxygen.
so separatw water molecules form hydrogen bonds with each other.
How are polymers broken down? - CORRECT-ANSWERShydrolysis
what are inorganic ions? - CORRECT-ANSWERSSalts/Minerals
Inorganic = do not contain carbon, Ion = charged (+ve/-ve)
e.g. Sodium Ions (Na+), Chloride Ions (Cl-)
what is kingdom of biology - CORRECT-
ANSWERSanimals,plant,bacteria,fungi,protists,multicellular,microorganisms.
viruses arent living. all organisms made up of cells.
how does a zygote develop into an organism? - CORRECT-ANSWERSstem
cell, undifferentiated
divides by mitosis to make more stem cells
each cell differentiates into specialised
each specialised divides by mitosis to make tissues
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