REVIEW ACTUAL EXAM PAPER 2026
QUESTIONS WITH ANSWERS GRADED
A+
◍ accuracy.
Answer: the degree to which the experimental value agrees with the true or
accepted value
◍ Acid Rain.
Answer: Changes the pH of aquatic ecosystems and affects the types of
organisms that can survive there.
◍ nucleus.
Answer: controles activies
◍ Chloroplast.
Answer: Plants-photosynthesis
◍ Activation energy.
Answer: amount of energy sufficient for a certain chemical reaction to occur
◍ Active transport.
Answer: move against concentration gradient (low to high concentration)
and require the cell to expend energy
◍ Adaptive radiation/Divergent evolution.
Answer: When a number of different species diverge (split-off) from a
common ancestor. Occurs over many generations when organisms evolve a
variety of characteristics which allow them to survive in different niches.
◍ Agricultural Technology.
, Answer: Improves the ability to grow crops to sustain a population. Help to
conserve soil and reduce erosion
◍ Alternative energy technology.
Answer: using natural, renewable energy sources which increases the quality
of the atmosphere and the cycles involved.
◍ Ribsomes.
Answer: Makes protein
◍ Anatomy.
Answer: the study of the physical structures of organisms.
◍ Autotrophs.
Answer: an organism that makes energy
◍ cell differentiation.
Answer: cell changes into one cell into another
◍ stem cell.
Answer: unspecialized
◍ homeostasis.
Answer: in cell membrane- maintains constant and stable conditions
◍ Bar graph.
Answer: graph used for non-continuous data which is usually categorical
◍ Beneficial mutations.
Answer: changes that may be useful to organisms in different or changing
environment
◍ Biochemistry.
Answer: the study of the chemical processes in organisms.
◍ selectively permeable.
Answer: only certain can go in and out of membrane
◍ diffusion.
Answer: high to low
, ◍ Biomass.
Answer: total of the organic material in an ecosystem
◍ osomosis.
Answer: high water to low water: Low solute to high solute
◍ Passive transport.
Answer: high to low; no energy
◍ Biomass pyramid.
Answer: represents the total mass of living organic matter (biomass) at each
trophic level in an ecosystem
◍ Calvin cycle.
Answer: functions in carbon fixation, creates sugar in photosynthesis
◍ Carnivores.
Answer: eat only other consumers
◍ Active Transport.
Answer: Low to high: uses energy: pumps and vesicles
◍ Facilitated Diffusion.
Answer: helper,no energy
◍ mitosis.
Answer: makes two identical cells out of one
◍ Prophase.
Answer: preparing
◍ Catalyst.
Answer: substance that changes the rate of a chemical reaction or allows a
chemical reaction to occur (activate at a lower than normal temperature) but
is not used in the reaction
◍ metaphase.
Answer: move to middle