Chapter 6: Energy and Metabolism Concept Checklist

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Delahunty








December 4, 2012

Biology

Honors






Chapter 6: Energy and Metabolism Concept Checklist

Chapter 6 Test is scheduled for Wednesday, December 12, 2012


1.

Define the terms bioenergetics and thermodynamics. Explain how these terms
are related
to each other and to the field of biology.

2.

Explain the relationships between energy, potential energy and kinetic energy.

3.

Explain the relationship between heat, calories and kilocalories.

4.

Identify the ultimate source of energy for biological systems on Ear
th.

5.

Explain the flow of energy from the ultimate source to autotrophs and
heterotrophs. How are chemical energy and the processes of photosynthesis and
cellular respiration related to this flow of energy?

6.

Explain how chemical bonds and chemical energy are

related.

7.

Explain the role of oxidation
-
reduction reactions in the flow of energy during
chemical reactions.

8.

State the First Law of Thermodynamics.

9.

State the Second Law of Thermodynamics.

10.

Explain why disorder is more likely than order.

11.

Describe the r
elationship between chemical energy, free energy, enthalpy,
endergonic reactions and exergonic reactions.

12.

Identify the terms and state the relationship between the terms in the
following equation:



Δ G = Δ H
-

T·ΔS

13.

Given a diagram illustration free energy

vs. the course of reaction, identify
and label the following: reactants, products, activation energy, catalyzed activation
energy, energy released or energy supplied, and Δ G as positive or negative.

14.

Draw a labeled diagram of an ATP molecule. Describe how ATP stores and
releases energy for cells.

15.

What does ATP stand for? Explain how the following terms related: ATP,
ADP, AMP, hydrolysis, dehydration synthesis and inorganic phosphate

16.

Explain the rel
ationship between the following terms: catalysis, catalyst,
substrate, active site, enzyme
-
substrate complex, allosteric enzyme, allosteric site,
allosteric inhibitor and allosteric activator

17.

Describe what a multi
-
enzyme complex is. List three significant

advantages
of having a multi
-
enzyme complex.

18.

Explain the relationship between the following terms: RNA, enzyme,
catalyst, ribozyme,
intra
molecular catalysis and
inter
molecular catalysis

19.

Explain the effect the following have on enzyme function: substrate
c
oncentration, enzyme concentration, pH, temperature, and presence of inhibitors

20.

Describe how competitive inhibitors and non
-
competitive inhibitors differ in
their action

21.

Explain the relationship between metabolism, anabolism and catabolism.
Be able to ide
ntify reactions as anabolic or catabolic.

22.

Explain what a “biochemical pathway” is. Give an example of biochemical
pathways.

23.

Describe how a feedback inhibition mechanism regulates biochemical
pathways. Give an example of feedback inhibition.

24.

Be familiar wi
th Chapter 6 vocabulary


definitions and applications.