Chapter 6 - Energy and Metabolism

Question 1

Energy comes mostly from where?

Answer 1

The sun

Question 2

Bioenergetics

Answer 2

Definition: The study of energy flow and transformation in biological systems, focusing on how organisms convert energy for life, including thermodynamics, metabolic pathways, and cellular energy efficiency.

Question 3

Metabolism

Answer 3

Refers to all chemical reactions of a cell or organism

Question 4

Plants turn sun’s energy into what?

Answer 4

Glucose

Question 5

Anabolic Pathways

Answer 5

Small molecules are assembled into large one. Requires energy

Question 6

Catabolic Pathways

Answer 6

large molecules are broken down into small ones. Energy is released.

Question 7

Kinetic Energy

Answer 7

energy of chemical gradients across plasma membranes

Question 8

Chemical Energy

Answer 8

energy stored in chemical bonds (potential)

Question 9

Exergonic

Answer 9

During a reaction, requires energy output.

Question 10

Endergonic

Answer 10

requires an input of energy for reaction to occur.

Question 11

What is ATP used for?

Answer 11

Cellular respiration

Question 12

Autotrophs

Answer 12

produce their own ATP through photosynthesis

Question 13

Heterotrophs

Answer 13

Live on organic molecules that are produced by autotrophs

Question 14

REDOX

Answer 14

transferring electrons from one molecule to another

Question 15

Metabolic pathways involved in cellular respiration

Answer 15

Oxidation, of pyruvate and citric acid cycle, and oxidate phosphorylation

Question 16

What is the formula for respiration

Answer 16

C6H12O6+6O2——>6Co2+6H2O+36 ATP```

Question 17

Glycosis

Answer 17

First metabolic pathway of glucose metabolism, breaks down into 3 substrates, produces 2 ATP.

Question 18

Oxygen

Answer 18

Used by metabolism to use ATP, decrease oxygen intake to increase metabolism