Week 14: Energy Transformation

Question 1

Energy’s many forms

Answer 1

1. heat
2. nuclear
3. electrical
4. magnetic
5. light
6. chemical energy

Question 2

molecules that accept and temporarily hold high-energy electrons

Answer 2

electron carrier

Question 3

series of electron-transport molecules that pass high-energy electrons from molecule to molecule and capture their energy

Answer 3

electron transport chain

Question 4

structure within the chloroplast; consists of stacks of sac-like thylakoid membranes

Answer 4

Grana

Question 5

group of molecules, including chlorophyll, in the thylakoid membrane of a chloroplast; captures light energy

Answer 5

photosystems

Question 6

molecules that absorb specific wavelengths of light

Answer 6

pigment molecules

Question 7

space outside thylakoid membranes of a chloroplast; site of the Calvin cycle of photosynthesis

Answer 7

Stroma

Question 8

theory that proposes eukaryotic organelles, such as mitochondria, evolved from ancient, free-living prokaryotes that invaded other prokaryotic cells

Answer 8

THEORY OF ENDOSYMBIOSIS

Question 9

sub-organelle within the chloroplast; site of the light reactions of photosynthesis

Answer 9

THYLAKOID

Question 10

energy-carrying molecule that cells use to power their metabolic processes; energy currency of the cell

Answer 10

ATP

Question 11

metabolic process which transfers chemical energy from glucose to ATP

Answer 11

cellular respiration

Question 12

primary pigment of photosynthesis; found in the thylakoid membranes of chloroplasts

Answer 12

chlorophyll