Cellular Respiration Overview Worksheet PDF

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Cellular Respiration Overview Worksheet

Aerobic Cellular Respiration basics: 1. Define Cellular Respiration An ATP-generating process in which molecules are oxidized and the final electron acceptor comes from outside the cell and is (almost always) an inorganic molecule.

2. What organisms perform cellular respiration? Both eucaryotic and prokaryotic organisms perform cellular respiration.

3. Where in the bacterial cell does cellular respiration occur? Where in eukaryotic cells? In the bacterial cell, cellular respiration occurs within the plasma membrane. In a eukaryotic cell, cellular respiration occurs in the mitochondria.

4.

What is the equation (in words) for cellular respiration? Carbon dioxide + Water Glucose + Oxygen CO2 + H2O C6H12O6 + 6O2. When sugar reacts with oxygen to produce water and carbon dioxide as waste.

5.

Fill in the table for the Stages of Cellular Respiration in bacteria:

Name of Stage Glycolysis

Location in Cell Where it Occurs Cytoplasm

Reactants Glucose

Products Pyruvate,ATP,NADH, NAD+

Kreb’s Cycle

Mitochondria

Acetyl Co-A

ATP,NADH,FADH2,CO2

Oxidative phosphlrylation (ETC)

Mitochondria

NADH, FADH2

ATP, H2O

6.

Comparing aerobic cellular respiration and fermentation. Fill in the blanks in the diagram below.

Name of Stage

Glycolysis

Pyruvic Acid

Name of Stage

Fermentation

Lactic Acid

Krebs Cycle

Electronic Transport Chain

Up to 36 ATP

Anaerobic Cellular Respiration Basics 1. The absence of which substance will determine if a cell will undergo anaerobic respiration or fermentation? Oxygen 2.

What phases does anaerobic respiration include? What is different in anaerobic respiration vs. aerobic? Anaerobic respiration includes glycolysis and fermentation. Anaerobic respiration happens due to the absence of oxygen, whereas aerobic respiration happens when oxygen is present.

3.

Name of Stage

What substances can act as final electron acceptors in anaerobic respiration? An organic molecule synthesized in the cell can be used as final electron acceptor

4. The fermentation process includes which stage that is also present in aerobic respiration?

Products

Glycolysis is present in both aerobic and anaerobic respiration. 5. Name some end products of fermentation. Propionic acid, acetic acid, CO2, and H2; Lactic acid; Ethanol & CO2 6.

Does anaerobic respiration and fermentation yield as much ATP as aerobic cellular respiration? Why or why not? Anaerobic respiration has a variable yield, fewer than 38 but more than 2, and fermentation only yields 2 ATP molecules per Glucose molecule. In aerobic respiration 36 molecules of ATP are produced in eukaryotes and 38 molecules of ATP molecules in prokaryotes. The oxidation of glucose in aerobic respiration is what causes more ATP molecules to be produced.

Multiple choice (note questions may have more than one correct answer): 1.

Where do the carbon atoms in pyruvic acid end up following the Krebs cycle? A. They enter the electron transport chain and make ATP B. They become part of a carbon dioxide molecule and end up in the atmosphere C. They join with citric acid to make Acetyl-CoA D. They build up in the periplasmic space

2. Which of the following are produced in the Krebs cycle? A. ATP B. NADH C. FADH2 D. CO2 3. The movement of which ion across the membrane causes ATP synthase to spin and make ATP. A. Na+ ions B. oxygen C. H+ ions D. water 4. Which stage of cellular respiration produces the most ATP?

A. glycolysis B. Krebs cycle C. Electron transport D. Acetyl-CoA charging

5. Which of the following happens as electrons pass down the Electron Transport chain? A. Energy from the moving electrons transports H+ ions into the periplasmic space B. Carbon dioxide is released C. Energy from H+ ions crossing back into the cell causes ATP synthase to make ATP. D. Water is produced...