2026 PRACTICE SOLUTION QUESTIONS AND
ANSWERS VERIFIED
◉ Isomers are Answer: molecules that have the same molecular
formula
◉ Disaccharide are Answer: 2 monosaccharides together with
condensation reaction (H2O is taken out)
◉ Hydrolysis reaction is Answer: adding water
◉ Polysaccharides are Answer: Disaccharides + monosaccharides
also hydrophilic
◉ Nucleoid region of prokaryotic cell Answer: contains the cells of
DNA
◉ Function of nucleoulus is... Answer: to manufacture ribosomal
RNA
,◉ Which location in the cell is UNLIKELY to contain ribosomes or
ribosomal units? Answer: Plasma membrane
◉ Order in which insulin passes through from its production to its
exit from the cell Answer: Rough ER, transport vesicles, golgi
apparatus, transport vesicles, cell membrane
◉ Gap Junctions Answer: connect cytoplasm of 2 cells and allows
molecules, ions, and electric impulses
◉ Tight Juntctions Answer: Prevents cell leakage
◉ Anchoring Junctions Answer: Proteins fasten cells together
◉ What part of the cell is responsible for ATP? Answer:
Mitochondria
◉ What part of the cell is responsible for lipids and proteins?
Answer: ER
◉ Thermodynamics First Law Answer: Energy can be transformed
and transferred, but cannot be destroyed or created.
, ◉ Thermodynamics Second Law Answer: In each energy
transformation, some energy is lost in the form of heat
◉ When a cell uses chemical energy to perform work, it uses the
energy released from a(n) ________ reaction to drive a(n) ________
reaction. Answer: exergonic, endergonic
◉ When an enzyme catalyzes a reaction... Answer: it lowers the
activation energy of the reaction
◉ Substrates bind to an enzyme's ______ site. Answer: Active
◉ Heating inactivates enzymes by Answer: changing the enzyme's
three-dimensional shape by breaking peptide bonds
◉ Which of the following processes is endergonic?
A. Burning of wood
B. Breakdown of glucose
C. The synthesis of glucose form carbon dioxide to water
D. Cellular Respiration Answer: C. the synthesis of glucose from
carbon dioxide and water
◉ Catalysts Answer: Speed up/start chemical reactions and lower
the activation level