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Biology Terms: Autotrophs, Heterotrophs, Respiration, Photosynthesis, Quizzes of Biology

Definitions for various terms related to biology, including autotrophs, heterotrophs, cellular respiration, photosynthesis, chlorophyll, and light reactions. Topics covered include the differences between autotrophs and heterotrophs, the process of cellular respiration and photosynthesis, the role of chlorophyll in the light reaction, and the differences between linear and cyclic electron flow.

Typology: Quizzes

2009/2010

Uploaded on 03/08/2010

nfe522
nfe522 🇺🇸

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TERM 1
Autotrophs
DEFINITION 1
Producers (Produce their own food) - Plants (& some protists
and prokaryotes)
TERM 2
Photoautotrophs
DEFINITION 2
Use light as a source of energyy to synthesize organic
substances
TERM 3
Heterotrophs
DEFINITION 3
Consumers - Feed on autotrophs or other heterotrophs
TERM 4
Cellular Respiration - Reaction Type -
Byproducts - Products - Electron Carrier
DEFINITION 4
- Exergonic (Redox) - CO2 & H2O - ATP - NADH
TERM 5
Photosynthesis - Reaction Type - Byproducts -
Electron Carrier
DEFINITION 5
- Endergonic (Redox) - O2 & H2O - NADPH
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Autotrophs

Producers (Produce their own food) - Plants (& some protists and prokaryotes) TERM 2

Photoautotrophs

DEFINITION 2 Use light as a source of energyy to synthesize organic substances TERM 3

Heterotrophs

DEFINITION 3 Consumers - Feed on autotrophs or other heterotrophs TERM 4

Cellular Respiration - Reaction Type -

Byproducts - Products - Electron Carrier

DEFINITION 4

  • Exergonic (Redox) - CO2 & H2O - ATP - NADH TERM 5

Photosynthesis - Reaction Type - Byproducts -

Electron Carrier

DEFINITION 5

  • Endergonic (Redox) - O2 & H2O - NADPH

Light Reactions

  • Occur in thylakoids - Produce NADPH & ATP - Occur in Photosystems (II & I) TERM 7

Calvin Cycle

DEFINITION 7

  • Occur in Stroma - Produce sugar TERM 8

Sunlight (wavelength vs. energy)

DEFINITION 8 Shorter wavelength -----> Longer wavelength Higher energy - ---------> Lower energy TERM 9

Photons

DEFINITION 9 One "particle" or light TERM 10

Chlorophyll a

DEFINITION 10 (Pigment) Participates directly in light reaction

Calvin Cycle (3 steps)

  • Carbon Fixation (by rubsico) RuBP + CO2 - Reduction G3P - Regeneration RuBP re-formed - Cost: 13 GP = 3CO2 + 9ATP
  • 6 NADPH TERM 17

Photorespiration

DEFINITION 17 (Detrimental to plans) - C3 plans use CO2 to make sugar when there is water loss, te stamina closes, but it then cannot get CO2 - Rubsico can fix O2 --> CO2 - Can waste up to 50% of fized C - May be photoprotective TERM 18

Rubsico

DEFINITION 18 Can fiz O2 --> CO2 - Uses ingredients with no gains (wastes energy & carbon)