BIOLOGY I EXAM QUESTIONS AND
CORRECT DETAILED ANSWERS
WITH RATIONALE LATEST
UPDATE THIS YEAR
energy
capacity to do work
ATP
adenosine triphosphate
- "currency" of cellular energy that all
cells use
1
,metabolism
entire set of chemical rxns that sustain
life
2 things needed for growth & vital
functions
1. energy
2. carbon
2 ways of harvesting energy
1. phototroph
2. chemotroph
phototroph
(plants)
captures energy from sunlight
chemotroph
(animals)
derives energy from organic
molecules
2 sources of carbon
2
, 1. autotroph
2. heterotroph
autotroph
(plants)
converts inorganic sources into an
organic source
(ex. carbon dioxide --> glucose)
heterotroph
(animals)
obtains carbon from organic
molecules synthesized by other
organisms
animals such as cats, worms, &
butterflies are considered...
chemoheterotrophs
catabolism
chemical rxns that BREAK DOWN
molec into smaller units
- produces ATP
3
CORRECT DETAILED ANSWERS
WITH RATIONALE LATEST
UPDATE THIS YEAR
energy
capacity to do work
ATP
adenosine triphosphate
- "currency" of cellular energy that all
cells use
1
,metabolism
entire set of chemical rxns that sustain
life
2 things needed for growth & vital
functions
1. energy
2. carbon
2 ways of harvesting energy
1. phototroph
2. chemotroph
phototroph
(plants)
captures energy from sunlight
chemotroph
(animals)
derives energy from organic
molecules
2 sources of carbon
2
, 1. autotroph
2. heterotroph
autotroph
(plants)
converts inorganic sources into an
organic source
(ex. carbon dioxide --> glucose)
heterotroph
(animals)
obtains carbon from organic
molecules synthesized by other
organisms
animals such as cats, worms, &
butterflies are considered...
chemoheterotrophs
catabolism
chemical rxns that BREAK DOWN
molec into smaller units
- produces ATP
3