Cellular Respiration and Energy Processes

Why is ATP considered a 'high energy' molecule?

• It has three phosphate groups

• It releases energy when hydrolyzed

• It is stable at high temperatures

• It is a large molecule.

How does ATP 'couple reactions'?

• By releasing energy

• By absorbing energy

• By acting as a catalyst

• By forming bonds.

Tags

NGSS.HS-LS1-7

What are some specific processes the cell needs ATP to complete?

• Photosynthesis

• Cellular respiration

• Active transport

• Protein synthesis

Tags

NGSS.HS-LS1-7

Define Oxidation and Reduction.

• Oxidation is loss of electrons, Reduction is gain of electrons

• Oxidation is gain of electrons, Reduction is loss of electrons

• Both involve gain of electrons

• Both involve loss of electrons.

Explain why respiration is considered exergonic.

• It absorbs energy

• It releases energy

• It requires energy input

• It is energy neutral.

Tags

NGSS.HS-LS1-7

Where do the steps of cellular respiration occur?

• Cytoplasm and mitochondria

• Nucleus and ribosomes

• Endoplasmic reticulum and Golgi apparatus

• Chloroplasts and vacuoles.

Tags

NGSS.HS-LS1-7

Explain why NAD+ and FAD are required for cellular respiration.

• They are enzymes

• They are electron carriers

• They are structural proteins

• They are energy sources.

Tags

NGSS.HS-LS1-7

In using an enzyme, what is the substrate?

• The enzyme itself

• The product of the reaction

• The reactant that the enzyme acts on

• The inhibitor of the enzyme.

Which two molecules are directly oxidized by the electron transport chain?

• A) NADH and FADH2

• B) ATP and ADP

• C) Glucose and pyruvate

• D) Oxygen and water

Tags

NGSS.HS-LS1-7

Place where glycolysis happens: A) Cytoplasm B) Mitochondria C) Nucleus D) Ribosome.

• Cytoplasm

• Mitochondria

• Nucleus

• Ribosome