BSCI 105 Lecture 11: photosynthesis

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indigowater-buffalo678

1 Jul 2016

School

University of Maryland

Department

Biological Sciences Program

Course

BSCI 105

Professor

Patricia Shields

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Document Summary

Start with some sort molecule: lipids, carbohydrates, proteins. Energy transformation the conversion of light energy (electromagnetic energy) into stored chemical energy: during this process, we take carbon that is inorganic (carbon dioxide) and convert it into carbon that is organic (sugar) the sugar is glyceraldehyde 3-phosphate. Cellular respiration: sugar + o2 co2 + h2o + energy. Co2 + h2o + energy sugar + o2. Major stages of photosynthesis o o o part) o o o. Require visible light produce atp, nadph and atp. Do not require visible light use co2 and the atp & nadph from light rxns to make carbohydrates. Absorbed light excites electrons which leads to atp production via chemiosmosis o photophosphorylation. Excited electrons move to primary electron acceptor (creating a electron void) The electron void is filled with electrons from the splitting of water (photolysis) H+ from water end up in thylakioid lumen so does oxygen!

Related Questions

PLEASE HELP TO PREPARE THESE QUESTIONS

- Know what photosynthesis is

- Be able to name the two major biochemical processes in photosynthesis & what
occurs at each stage
- Know the storage & transport carbohydrates in plants and animals
- Know the different portions of chloroplasts and mitochondria
- Be able to explain what happens at each stage of photosynthesis and aerobic
respiration
- Know the electron acceptors, electron donors, complex names, and mobile carriers
in photosynthesis and aerobic respiration
- Know where the electrons start and where they go when they go down ETSand
how this results in synthesis of ATP
- Know the number of ATP molecules generated from the oxidation of one glucose
molecule (glycolysis, TCAcycle, and ETS)
- Know the TCA cycle(the shortened figure)
- Know the principal of respiratory control
- Know what proton motive force is and how it contributes to ATP production
- Know what occurs with anaerobic respiration (how is lactate generated and what
are the consequences of lactate generation

harlequinfox288

a) A newly discovered microorganism has been classified as a chemolithotrophic autotroph.

i)Dissect this term to explain what this means about the microorganismâs metabolism.

ii)In what sort of environment where would you expect to find this microorganism?

b) Explain how the bacterial electron transport chains differ from eukaryotic electron transport chain.

c) Imagine a microbial cell that normally carries out aerobic respiration has encountered a low oxygen environment and may die if the levels do not increase.

i) Describe the key role that oxygen plays for this microorganism in the aerobic respiration process and what will occur differently without oxygen that could lead to death.

ii) How would you class this organism in terms of oxygen for growth requirements?

1. the product of glycolysis are?

2.ATP made during glycolysis is made by what process?

3.where in eukaryotic cells does oxidative phosphorylation takeplace?

4. what is the purpose of fermentation?

5 the greatest contribution of electrons to the ets come fromwhat?

6. what is the compound that feeds into krebs cycle?

7. what is catabolism? list some examples?

8. what is anabolism? list some examples?

9. how many ATP are produced from the electron transport chainalone from one molecule of glucose?

10. how many ATP molecules are generated for each molecule ofglucose in aerobic respiration?

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BSCI 105 Lecture 11: photosynthesis

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