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Multiple Choice
In the context of cell biology, which organelle is found in plant cells (and algae) but not in animal cells and is the site of photosynthesis?
A
Ribosome
B
Chloroplast
C
Lysosome
D
Mitochondrion
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Verified step by step guidance
1
Identify the organelles listed in the problem: Ribosome, Chloroplast, Lysosome, and Mitochondrion.
Recall the functions and presence of these organelles in different cell types: Ribosomes are found in all cells and are responsible for protein synthesis; Lysosomes are primarily found in animal cells and involved in digestion; Mitochondria are found in both plant and animal cells and are the site of cellular respiration.
Focus on the organelle unique to plant cells and algae that is responsible for photosynthesis, which is the process of converting light energy into chemical energy.
Recognize that the Chloroplast is the organelle found in plant cells and algae but not in animal cells, and it contains chlorophyll to carry out photosynthesis.
Conclude that the correct answer is Chloroplast, as it is the site of photosynthesis and unique to plant cells and algae.