II Review

Which of the following types of endocytosis describes the process by which damaged organelles are engulfed by lysosomes?

• a.       Autophagy

• a.       Receptor-mediated endocytosis

• a.       Phagocytosis

Which of the following choices represent the parts of the endomembrane system?

• a.       Smooth ER and Golgi apparatus

• a.       Rough ER, smooth ER, and Golgi apparatus

1.       Inside the peroxisome organelle is the enzyme catalase. What substance does catalase break down?

• hydrogen peroxide

• nitrogen peroxide

1.     What is the function of the nucleolus?

• Makes proteins

• Makes ribosomes

Exergonic reactions are (catabolic/anabolic) and they (release/require) energy.

• Catabolic, release

• Catabolic, require

Which of the following substances is the most important electron carrier?

• a.       NADH/NAD+

• a.       FADH2/FAD

How many turns of the Krebs cycle (Citric Acid Cycle) happen for every one glucose molecule?

• 2

• 4

Which of the following steps of cellular respiration requires 2 ATP molecules to begin?

• Glycolysis          

• Citric Acid cycle

1.       Where in the cell does the Citric Acid Cycle take place?

• Cytoplasm

• Mitochondria   

1.       Which of the steps of cellular respiration produces carbon dioxide?

• Citric Acid cycle

• Glycolysis