AP Biology Cell Energetics

How does initial substrate concentration affect enzyme reaction rates?

• High concentration of substrates will inhibit enzyme reaction rates

• Low concentration of substrate will increase enzyme reaction rates

• High initial concentrations of substrate will increase the enzyme reaction rate

• Enzyme reaction rates are independent of substrate concentration

Why is chemiosmosis important to cellular respiration?

• It provides the energy needed to catabolize glucose

• It is the force that powers ATP synthase

• It provides the energy needed to breakdown pyruvate into carbon dioxide

• It generates the electrons needed for the electron transport chain

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NGSS.HS-LS1-7

Why is the hydrolysis of ATP important to a cells function?

• It provides a source of phosphate for the cell.

• It releases energy that can be used to power cellular processes

• It absorbs excess hydrogen ions in the cell to regulate the internal pH

• It acts as a catalyst for chemical reactions in the cell.

A Form of Stored Chemical Energy made in the mitochondria.

• ATP

• An Infection

• nucleus

• An Organelle

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NGSS.HS-LS1-7

Energy from ​ (a)   cellular reactions can be used to bind a phosphate ion to ADP in the cell forming a new ​ (b)   molecule. Adenosine triphosphate and water will undergo ​ (c)   and release energy to power ​ (d)   cellular processes and produce adenosine ​ (e)   plus a phosphate ion.

• exergonic

• ATP

• ADP

• hydrolysis

• endergonic

• diphosphate

• triphosphate

• dehydration

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NGSS.HS-PS1-4

What is the full name of the molecule ADP?

• Adenine Diphosphate

• Adenosine Diphosphate

• Adenine Triphosphate

• Adenosine Triphosphate

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NGSS.HS-LS1-7

ATP is made in the mitochondria. What is ATP?

• The Genetic Code

• An Infection

• A Form of Stored Chemical Energy

• An Organelle

Tags

NGSS.HS-LS1-7

A Form of Stored Chemical Energy made in the mitochondria.

• The Genetic Code

• An Infection

• ATP

• An Organelle

Tags

NGSS.HS-LS1-7

Energy from ​ (a)   cellular reactions can be used to bind a phosphate ion to ADP in the cell forming a new ​ (b)   molecule. Adenosine triphosphate and water will undergo ​ (c)   and release energy to power ​ (d)   cellular processes and produce adenosine ​ (e)   plus a phosphate ion.

• exergonic

• ATP

• ADP

• hydrolysis

• endergonic

• diphosphate

• triphosphate

• dehydration

Tags

NGSS.HS-LS1-7

NGSS.HS-LS2-3

Why do plants not store 100% of the light energy absorbed by chlorophyll in glucose molecules?

• Most of the energy is used to power the reaction or is lost as heat

• Plants do not have a high energy requirement, so they do not need to convert 100% of the energy

• The energy is used to power ATP synthase proteins on the thylakoid membrane

• The remaining energy is used actively transport oxygen out of the cell.

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