Chapter 8

Question 1

Project blue book

Answer 1

J. Allen Hynek concluded that “UFO” sightings were swamp gas or methane

Question 2

What is metabolism

Answer 2

Sum total of our energy budget

Question 3

Exergonic reaction

Answer 3

Reactions that produce an excess of energy when a biological molecule is digested. Can be lost as heat or light. The bonds of the larger molecule have more collective energy than all the smaller substances that remain.

Question 4

Endergonic

Answer 4

Reactions that require an input of energy

Question 5

Pyrosome

Answer 5

Glow due to bacteria in their tissue. Exergonic reaction. The light can attract food.

Question 6

Coupled reaction

Answer 6

Exergonic and Endergonic reactions occur simultaneously. Exergonic reaction provides energy for the subsequent reaction.

Question 7

ATP components

Answer 7

Ribose sugar covalently bonded to adenine and three phosphate groups. The phosphates provide the large amount of energy in the molecule when they are removed (availability for use in endergonic processes)

Question 8

ADP

Answer 8

Adenosine diphosphate. 2 phosphate molecules on adenine. An exergonic reaction occurs W hen a phosphate group is removed to convert ATP to ADP

Question 9

Why is ATP so energy rich?

Answer 9

Phosphate group is negatively charged. The three “tails” strongly repel each other. Bonds are unstable.

Question 10

Oxidized

Answer 10

An atom losing an electron