Question
Question: Accumulation of H\_{2}O\_{2} is harmful for the survival of eukaryotic cells. The level of H\_{2}O\_...
Accumulation of H_{2}O_{2} is harmful for the survival of eukaryotic cells. The level of H_{2}O_{2} in the cell is kept under control by _________.
A
glyoxisomes with the enzyme glutathione reductase
B
peroxisomes with the enzyme citrate lyase
C
peroxisomes with the enzyme catalase
D
glyoxisomes with the enzyme glyceraldehyde dehydrogenase
Answer
peroxisomes with the enzyme catalase
Explanation
Solution
H₂O₂ accumulation is toxic. Peroxisomes, a type of organelle in eukaryotic cells, contain the enzyme catalase. Catalase breaks down H₂O₂ into water and oxygen, thus controlling its levels and preventing cellular damage.