AP BIOLOGY

LABORATORY REVIEW

CELL RESPIRATION

Question [CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
Which organelle performs cellular respiration?
A
chloroplasts
B
mitochondria
C
nucleus
D
cell membrane
Explanation: 

Detailed explanation-1: -The “powerhouses” of the cell, mitochondria are oval-shaped organelles found in most eukaryotic cells. As the site of cellular respiration, mitochondria serve to transform molecules such as glucose into an energy molecule known as ATP (adenosine triphosphate).

Detailed explanation-2: -While most aerobic respiration (with oxygen) takes place in the cell’s mitochondria, and anaerobic respiration (without oxygen) takes place within the cell’s cytoplasm.

Detailed explanation-3: -Summary. Mitochondria are organelles whose membranes are specialized for aerobic respiration. The matrix of the mitochondria is the site of Krebs Cycle reactions. The electron transport chain and most ATP synthesis rely on the compartments created by the inner membrane of the mitochondria.

Detailed explanation-4: -Cellular respiration takes place in the cells of animals, plants, and fungi, and also in algae and other protists. It is often called aerobic respiration because the process requires oxygen (the root aer comes from the Greek word for “air”).

There is 1 question to complete.