MTTC Integrated Science - Life Sciences Part 1 Questions And Answers
2 views 0 purchase
Course
MTTC
Institution
MTTC
MTTC Integrated Science - Life Sciences
Part 1 Questions And Answers
Light Independent Reactions Use ATP and NADPH (from the light-dependent reactions)
plus CO2 to produce carbohydrate sugars
photorespiration a wasteful process that uses energy and decreases sugar synthesis that
occurs in p...
MTTC Integrated Science - Life Sciences
Part 1 Questions And Answers
Light Independent Reactions Use ATP and NADPH (from the light-dependent reactions)
plus CO2 to produce carbohydrate sugars
photorespiration a wasteful process that uses energy and decreases sugar synthesis that
occurs in plants during photosynthesis. It occurs when the enzyme rubisco binds to oxygen
instead of atmospheric CO2.
How do C4 plants minimize photorespiration? The light reactions and the Calvin cycle
occur in different cells, so oxygen does not come into contact with rubisco.
How do CAM plants minimize photorespiration? Stomata are only opened at night,
storing carbon dioxide in malate. During the day the carbon dioxide is released for
photosynthesis.
how do C3 plants minimize photorespiration? They don't. They have no special
adaptations to do so. This is more than 85% of plants!
, MTTC Integrated Science - Life Sciences
Part 1 Questions And Answers
aerobic respiration Respiration that requires oxygen. a series of enzyme-controlled
reactions in which oxygen + glucose -> CO2 + H2O + energy (ATP).
aerobic respiration occurs in a series of 3 reactions. what are they? 1) glycolysis
2) the Krebs cycle
3) the electron-transport system
Glycolysis the breakdown of glucose by enzymes, releasing energy (2 ATP molecules),
pyruvic acid (2 molecules), and NADH (2 molecules).
Krebs Cycle (Citric Acid Cycle) - definition a metabolic pathway in which the bonds of
glucose (and occasionally fats/lipids) are broken down and reformed into ATP.
Krebs cycle - the actual cycle Acetyl CoA -> citric acid -> isocitric acid -> ketoglutaric
acid (with amino acid and CO2 products) -> succinyl CoA -> succinic acid -> fumaric acid ->
malic acid -> oxaloacetic acid
, MTTC Integrated Science - Life Sciences
Part 1 Questions And Answers
electron transport chain electrons are transported from enzyme to enzyme until they reach
a final acceptor, including a series of RedOx molecules involved in the release of energy
Fermentation An anaerobic (without oxygen) cellular process in which glucose is only
partially broken down and energy is released through the oxidation of sugars or other organic
molecules.
How is fermentation different from cellular respiration? it uses neither Krebs cycle nor
electron transport chains, and the final acceptor in fermentation is an organic molecule.
which is more efficient: fermentation (an anaerobic respiration) or aerobic respiration?
aerobic respiration
homolactic fermentation produces lactic acid only
heterolactic fermentation produces lactic acid and other compounds
The benefits of buying summaries with Stuvia:
Guaranteed quality through customer reviews
Stuvia customers have reviewed more than 700,000 summaries. This how you know that you are buying the best documents.
Quick and easy check-out
You can quickly pay through credit card or Stuvia-credit for the summaries. There is no membership needed.
Focus on what matters
Your fellow students write the study notes themselves, which is why the documents are always reliable and up-to-date. This ensures you quickly get to the core!
Frequently asked questions
What do I get when I buy this document?
You get a PDF, available immediately after your purchase. The purchased document is accessible anytime, anywhere and indefinitely through your profile.
Satisfaction guarantee: how does it work?
Our satisfaction guarantee ensures that you always find a study document that suits you well. You fill out a form, and our customer service team takes care of the rest.
Who am I buying these notes from?
Stuvia is a marketplace, so you are not buying this document from us, but from seller UpperClass. Stuvia facilitates payment to the seller.
Will I be stuck with a subscription?
No, you only buy these notes for $19.49. You're not tied to anything after your purchase.
