Multiple Choice
In an experiment measuring cellular respiration, how does increasing the number of seeds in a sealed chamber affect the rate of respiration measured by oxygen consumption?
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8. Respiration
Introduction to Cellular Respiration
Multiple Choice
In which organelle does the majority of cellular respiration take place in eukaryotic cells?
A
Nucleus
B
Chloroplasts
C
Ribosomes
D
Mitochondria
Verified step by step guidance1
Step 1: Understand the concept of cellular respiration. Cellular respiration is the process by which cells convert glucose and oxygen into energy (ATP), carbon dioxide, and water. It is essential for energy production in eukaryotic cells.
Step 2: Identify the organelle responsible for cellular respiration. Cellular respiration primarily occurs in the mitochondria, which are often referred to as the 'powerhouses' of the cell due to their role in energy production.
Step 3: Review the structure and function of the mitochondria. Mitochondria have a double membrane structure, with the inner membrane containing folds called cristae. These folds increase the surface area for reactions involved in cellular respiration, such as the electron transport chain and ATP synthesis.
Step 4: Compare the mitochondria to other organelles listed in the options. The nucleus is responsible for storing genetic material, chloroplasts are involved in photosynthesis (specific to plant cells), and ribosomes are responsible for protein synthesis. None of these organelles are directly involved in cellular respiration.
Step 5: Conclude that the mitochondria are the correct answer because they are the organelle where the majority of cellular respiration takes place in eukaryotic cells.
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