PHYS 261 TEST BANK EXAMINATION TEST
2026 SOLVED QUESTIONS FULL SOLUTION
◍ Enzymes Answer: Proteins that speed up chemical reactions
biological catalyst
bind to substrates
◍ Metabolism Answer: All of the chemical reactions that occur
within an organism
◍ Anabolic Answer: utilize energy to synthesize lg biomols
build up
◍ Catabolic Answer: prod energy thru large molecules being broken
down
◍ exergonic reaction Answer: A chemical reaction that releases
energy
used by other mols to do work or heat
less energy than reactants
◍ endergonic reaction Answer: reaction that requires input of energy
trap activation energy in products, have more free energy than
reactants
, ◍ aerobic metabolism Answer: Metabolism that can proceed only in
the presence of oxygen.
◍ anaerobic metabolism Answer: metabolism in the absence of
oxygen
◍ protein synthesis Answer: the formation of proteins by using
information contained in DNA and carried by mRNA
◍ Properties of Diffusion Answer: 1. It is a passive transport
2. It goes from high to low
3. It keeps going until equilibrium is reached
4. Fast in short distances and slow in long ones
5. Directly related to temperature
6. Rate is inversely related to weight and size
7. It can take place in an open or compartmentalized system
◍ Fick's Law of Diffusion Answer: diffusion through a membrane is
directly proportional to the surface area
particles under random thermal motion tend to spread from a region
of high to low
◍ simple diffusion Answer: diffusion directly across the
phospholipid bilayer of a membrane
2026 SOLVED QUESTIONS FULL SOLUTION
◍ Enzymes Answer: Proteins that speed up chemical reactions
biological catalyst
bind to substrates
◍ Metabolism Answer: All of the chemical reactions that occur
within an organism
◍ Anabolic Answer: utilize energy to synthesize lg biomols
build up
◍ Catabolic Answer: prod energy thru large molecules being broken
down
◍ exergonic reaction Answer: A chemical reaction that releases
energy
used by other mols to do work or heat
less energy than reactants
◍ endergonic reaction Answer: reaction that requires input of energy
trap activation energy in products, have more free energy than
reactants
, ◍ aerobic metabolism Answer: Metabolism that can proceed only in
the presence of oxygen.
◍ anaerobic metabolism Answer: metabolism in the absence of
oxygen
◍ protein synthesis Answer: the formation of proteins by using
information contained in DNA and carried by mRNA
◍ Properties of Diffusion Answer: 1. It is a passive transport
2. It goes from high to low
3. It keeps going until equilibrium is reached
4. Fast in short distances and slow in long ones
5. Directly related to temperature
6. Rate is inversely related to weight and size
7. It can take place in an open or compartmentalized system
◍ Fick's Law of Diffusion Answer: diffusion through a membrane is
directly proportional to the surface area
particles under random thermal motion tend to spread from a region
of high to low
◍ simple diffusion Answer: diffusion directly across the
phospholipid bilayer of a membrane
