Questions Fully Solved 2025.
metabolism - Answer the totality of an organisms chemical reactions
what kind of property is metabolism? - Answer emergent
begins with a specific molecule, which is then altered in a series of defined steps, resulting in a
certain product - Answer metabolic pathway
each step is catalyzed by a specific enzyme - Answer what happens at each step in a metabolic
pathway?
catabolic pathway - Answer breakdown pathway that releases energy by breaking down
complex molecules into simpler compounds
catabolic because it breaks glucose into smaller molecules - Answer Is cellular respiration
catabolic or anabolic?
anabolic pathway - Answer metabolic pathway that consumes energy to synthesize a complex
molecule from simpler compounds.
anabolic - Answer is synthesis of amino acids catabolic or anabolic?
exergonic - Answer releases energy
G is (-)
spontaneous
endergonic - Answer requires energy
G is (+)
non-spontaneous
, ATP - Answer (adenosine triphosphate) main energy source that cells use for most of their
work
ADP - Answer (adenosine diphosphate) compound that remains when a phosphate group is
removed from ATP, releasing energy
phosphorylated intermediate - Answer the recipient with the phosphate group (from ATP)
covalently bonded to it
transport work - Answer the pumping of substances across membranes against the direction
of spontaneous movement
mechanical work of ATP - Answer ATP binds noncovalently to motor proteins and then is
hydrolyzed
causes 'walking' of motor proteins
37 billion billion - Answer how many chemical reactions occur every second in the human
body?
brain tissue- consumes roughly 20% but is 2% of body weight
muscle tissue- consumes roughly 20% but weighs more - Answer which tissues consume the
most energy?
catalyst - Answer substance that speeds up the rate of a chemical reaction and reduces energy
of activation required
they reduce the activation energy - Answer how is an enzyme a catalyst?
substrate specific
have an active site with an affinity for a specific substrate and will only react with that substrate
- Answer how are enzymes specific?
usually 1000s - Answer how many enzymes are in a cell?