BIOLOGY I EXAM #3 UPDATED ACTUAL QUESTIONS
AND CORRECT ANSWERS
Question:
1. energy
Answer:
capacity to do work
Question:
2. ATP
Answer:
adenosine triphosphate
- "currency" of cellular energy that all cells use
Question:
3. metabolism
Answer:
entire set of chemical rxns that sustain life
Question:
4. 2 things needed for growth & vital functions
Answer:
1. energy
2. carbon
Question:
5. 2 ways of harvesting energy
Answer:
1. phototroph
2. chemotroph
Question:
6. phototroph
Answer:
(plants)
captures energy from sunlight
,Question:
7. chemotroph
Answer:
(animals)
derives energy from organic molecules
Question:
8. 2 sources of carbon
Answer:
1. autotroph
2. heterotroph
Question:
9. autotroph
Answer:
(plants)
converts inorganic sources into an organic source
(ex. carbon dioxide --> glucose)
Question:
10. heterotroph
Answer:
(animals)
obtains carbon from organic molecules synthesized by other organisms
Question:
11. animals such as cats, worms, & butterflies are
considered...
Answer:
chemoheterotrophs
Question:
12. catabolism
Answer:
chemical rxns that BREAK DOWN molec into smaller units
- produces ATP
Question:
13. anabolism
Answer:
chemical rxns that BUILD molec from smaller units
- utilizes ATP
, Question:
14. 2 forms of energy
Answer:
1. kinetic
2. potential
Question:
15. energy of motion
(ex. person running, muscles contracting, movement of molec --> heat, light)
Answer:
kinetic energy
Question:
16. stored energy released by a change in an object's structure/position
(ex. electrochemical gradient across a cell membrane, dam holding back water)
Answer:
potential energy
Question:
17. chemical energy
Answer:
form of potential energy held in chemical bonds b/n pairs of atoms in a molec
(ex. covalent bonds)
Question:
18. are organic molecules rich sources of chemical energy?
Answer:
yes
(ex. carbon-carbon bonds, carbon-hydrogen bonds)
AND CORRECT ANSWERS
Question:
1. energy
Answer:
capacity to do work
Question:
2. ATP
Answer:
adenosine triphosphate
- "currency" of cellular energy that all cells use
Question:
3. metabolism
Answer:
entire set of chemical rxns that sustain life
Question:
4. 2 things needed for growth & vital functions
Answer:
1. energy
2. carbon
Question:
5. 2 ways of harvesting energy
Answer:
1. phototroph
2. chemotroph
Question:
6. phototroph
Answer:
(plants)
captures energy from sunlight
,Question:
7. chemotroph
Answer:
(animals)
derives energy from organic molecules
Question:
8. 2 sources of carbon
Answer:
1. autotroph
2. heterotroph
Question:
9. autotroph
Answer:
(plants)
converts inorganic sources into an organic source
(ex. carbon dioxide --> glucose)
Question:
10. heterotroph
Answer:
(animals)
obtains carbon from organic molecules synthesized by other organisms
Question:
11. animals such as cats, worms, & butterflies are
considered...
Answer:
chemoheterotrophs
Question:
12. catabolism
Answer:
chemical rxns that BREAK DOWN molec into smaller units
- produces ATP
Question:
13. anabolism
Answer:
chemical rxns that BUILD molec from smaller units
- utilizes ATP
, Question:
14. 2 forms of energy
Answer:
1. kinetic
2. potential
Question:
15. energy of motion
(ex. person running, muscles contracting, movement of molec --> heat, light)
Answer:
kinetic energy
Question:
16. stored energy released by a change in an object's structure/position
(ex. electrochemical gradient across a cell membrane, dam holding back water)
Answer:
potential energy
Question:
17. chemical energy
Answer:
form of potential energy held in chemical bonds b/n pairs of atoms in a molec
(ex. covalent bonds)
Question:
18. are organic molecules rich sources of chemical energy?
Answer:
yes
(ex. carbon-carbon bonds, carbon-hydrogen bonds)
