Chloroplasts and mitochondria are involved in a redox cycle because

Question 1ATP contains

an adenine base, a ribose sugar, and three phosphate groups.

 

an adenine base, a ribose sugar, and two phosphate groups.

 

an adenine base and one phosphate group.

 

an adenine base and three phosphate groups.

 

an adenine base and two phosphate groups.

 

Question 2Chloroplasts and mitochondria are involved in a redox cycle because

 

both use carbon dioxide.

 

both are required to be in all cells.

 

energy cycles between the two organelles.

 

photosynthesis uses energy and cellular respiration releases energy.

 

carbon dioxide is reduced during photosynthesis and carbohydrates are oxidized during cellular respiration.

 

Question 3Each enzyme has a particular substrate because enzymes

 

increase the energy of activation.

 

have active sites complementary in shape to their substrates.

 

are named for their substrate.

 

decrease the productivity of the cell.

 

always require coenzymes.

 

Question 4Occasionally someone claims to have built a machine that can run forever, producing as much energy as it consumes. This has always been disproved because it violates

 

entropy.

 

the first law of thermodynamics.

 

laws preventing any conversion between types of energy.

 

coupled reaction equations.

 

the second law of thermodynamics.

 

Question 5The metabolic pathways of photosynthesis and cellular respiration

 

involve the same substrates and therefore the same enzymes.

 

involve oxidation reactions during photosynthesis and reduction reactions during respiration.

 

both involve oxidation and reduction reactions.

 

involve oxidation reactions during respiration and reduction reactions during photosynthesis.

 

are exactly the same.

 

Question 6We often say that we need food for energy. In a biological sense, is this correct?

 

Yes, because the food we eat has potential energy in its structure and this chemical energy can be converted into mechanical energy.

 

Yes, because the food must move through the digestive system, and motion is kinetic energy.

 

No, because food consists of matter and cannot be transformed into energy.

 

No, since all food matter stays matter, and energy remains energy.

 

Yes, because the smallest units inside the atoms that make up the food are simply pure energy.

 

Question 7What is the equation for photosynthesis?

 

energy + 6CO2 + 6H2O → C6H12O6 → 6CO2 + 6H2O

 

C6H12O6 + 6CO2 → 6O2 + 6H2O + energy

 

C6H12O6 + 6O2 → 6CO2 + 6H2O + energy

 

energy + 6CO2 + 6H2O → C6H12O6 + 6O2

 

energy + C6H12O6 → 6CO2 +6H2O

 

Question 8When a cell uses substantial energy to organize its cell contents to a greater degree than the organization that exists outside the living cell,

 

energy has been created.

 

entropy has decreased.

 

energy has been destroyed.

 

entropy has increased.

 

entropy remains the same.

 

Question 9Which energy association is correct?

 

Light energy is a form of chemical energy.

 

Energy in the chemical bonds of a molecule is kinetic energy.

 

Potential energy must be used immediately or it is lost.

 

Kinetic energy is energy of motion.

 

Water stored behind a dam is an example of kinetic energy.

 

Question 10Which of the following statements is true about enzymes?

 

They are unaffected by changes in pH.

 

They can associate with a wide variety of substrates.

 

They catalyze only one specific type of reaction.

 

Boiling temperatures do not affect their activity.

 

Their 3D shape can vary and still be active.

Collepals.com Plagiarism Free Papers

Are you looking for custom essay writing service or even dissertation writing services? Just request for our write my paper service, and we'll match you with the best essay writer in your subject! With an exceptional team of professional academic experts in a wide range of subjects, we can guarantee you an unrivaled quality of custom-written papers.

Get ZERO PLAGIARISM, HUMAN WRITTEN ESSAYS

Why Hire Collepals.com writers to do your paper?

Quality- We are experienced and have access to ample research materials.

We write plagiarism Free Content

Confidential- We never share or sell your personal information to third parties.

Support-Chat with us today! We are always waiting to answer all your questions.