Biology Chapter 9 Study Guide

Calorie
Measure of heat energy in food; equivalent to 1000 calories

Aerobic
Process that requires oxygen

Anaerobic
Process that doesn’t require oxgen

Glycolysis
First set of reactions in a celular respiration in which a molecule of glucose is broken into two molecules of pyruvic acid.

Krebs Cycle
Second set of cellular respiration in which pyruvic acid is broken down into carbon dioxide in a series of energy extracting reactions.

Fermentation
Process by which cells release energy in the absence of oxygen.

Name three phases of cellular respiration.
1. Glycolysis
2. Krebs Cycle
3. Electron Transport Chain

In cellular respiration what causes energy to be released?
Chemical bonds are broken.

In which organelle does cellular respiration take place?
Mitochondria

List 2 things that cellular respiration needs.
1. Carbohydrates
2. Oxygen

List 3 things cellular respiration produces.
1. Water
2. Carbon Dioxide
3. Energy

Write out the cellular respiration equation. Write it first in chemical formula and word form.
6O2+C6H12O6–>6CO2+6H2O+Energy
Oxygen+Carbohydrates–>Carbon Dioxide+Water+Energy

At the end of the kreb cycle, how many ATP’s are produced?
2

Glycolysis literally means what?
Sugar breaking

In glycolysis there is a transformation of 2 compounds, what are they? (Not sure about this one)
Pryuvic Acid and Glucose

What is the main difference between aerobic and anaerobic?
Aerobic requires oxygen and anaerobic doesn’t.

In the Krebs cycle. pyruvic acid molecules are broken down into what?
Carbon Dioxide

The Krebs cycle produces four types of products. Name those four products.
1. NADH
2. Carbon Dioxide
3. 2 ATP Molecules
4. 4 Carbon Molecules

At the end of the Electron transport phase of cellular respiration how many ATP’s are produced?
3

Explain electron transport phase of cellular respiration.
Uses high energy electrons from glycolysis and krebs cycle to convert ADP to ATP.

List the two types of fermentation and write their equations below.
Alcoholic- Pyruvic acid+NADH–>Alcohol+CO2+NAD+
Lactic Acid Fermentation- Pyruvic Acid+NADH–>Lactic Acid+NAD+

In glycolysis, glucose is transformed into 2 molecules of what?
Pyruvic Acid