Answered: Bacteria can do electron transport: To…

Bacteria can do electron transport: To generate ATP from reduced compounds All the other answers are correct all of the above To maintain redox balance in the cell To power carbon fixation

BIOLOGY:CONCEPTS+APPL.(LOOSELEAF)

10th Edition

ISBN:9781305967359

Author:STARR

Publisher:STARR

Chapter5: Ground Rules Of Metabolism

Section: Chapter Questions

Problem 5CT: Catalase combines two hydrogen peroxide molecules (H2O2+H2O2) to make two molecules of water. A gas...

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Concept explainers

Photosynthesis

Plants have a capacity that we humans can only imagine— the ability to produce food from sunlight. Sure, we can prepare some dishes that we can savor on, but it become possible because of the plants (as they serve as a producers of all the raw materials required). Photosynthesis is the method of assembling carbohydrates with the aid of sunlight.

Question

Bacteria can do electron transport:
To generate ATP from reduced compounds
All the other answers are correct all of the above)
To maintain redox balance in the cell
To power carbon fixation

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The energy release from sequential redox reactions in electron transport provides energy to cells most directly/proximally by: Using that energy to rotate the flagella Using that energy to phosphorylate compounds Using that energy to create carbon compounds Using that energy to pump protons
In fermentative metabolism, a microbe produces ATP by: oxidizing NADH to form the proton motive force more than one of the answers is correct generation of a proton motive force by transfer of electrons to oxygen substrate level phosphorylation
Which of the following is NOT one of the three forms of stored biological energy interconverted in chemiosmosis? O Photorespiration O Energy stored in chemical gradients across membranes O Chemical bond energy O Energy stored in electrical gradients across membranes
You have isolated a bacterium which is a strict, obligate aerobe. You expose the bacterium to hydrogen sulfide at high levels. What will first happen to the bacterium, if anything? O nothing will happen to the bacterium O electron transport will stop the proton gradient will increase, decreasing ATP synthesis oxidative phosphorylation would speed up
Which of the following is NOT true about chemoheterotrophs? They are ultimately dependent on autotrophs to provide their carbon and energy Oxidize organic compounds (e.g., glucose) to generate ATP None of the other four answers (all are true of chemoheterotrophs) O Can use light for energy and CO₂ as a source of carbon Use organic compounds as a source of both carbon and energy
Which of the following is an organism that obtains its energy from the transfer of electrons originating from chemical compounds and its carbon from an inorganic source such as CO2? photoautotroph Chemoheterotroph Chemoautotroph Photoheterotroph
Cytochrome B6F pumps protons (H+ ions) from: The lumen into the stroma The stroma into the lumen The intermembrane space into the stroma The stroma into the intermembrane space
Catalase combines two hydrogen peroxide molecules (H2O2+H2O2) to make two molecules of water. A gas also forms. What is the gas?
Which of the following pathways requires molecular oxygen (O2)? a. aerobic respiration b. lactate formation c. alcoholic fermentation d. photosynthesis
What is "reducing power" in a cell? Energy available for catabolism Stored oxidized compounds useful for biosynthesis Stored reduced compounds useful for biosynthesis The ability to change cell size to fit changing conditions
The purpose of ATP and compounds similar to ATP is to be available to catalyze the combustion of glucose serve as template for molecular replication oxidize chlorophyll store energy in P-O bonds
You have isolated a bacterium which is a strict, obligate aerobe. You expose the bacterium to oxidative phosphorylation uncouplers. What will first happen to the bacterium, if anything? O electron transport by the ETC will stop O nothing will happen to the bacterium O the proton gradient will be diminished thus reducing ATP synthesis O proton pumping will stop