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Question 552
Biochemistry → General
Classification
Question
SSBAQuestion Header
Peroxisomes are described as arising by pinching off from which cellular structure?
Question Stem
—
Options
A
Golgi trans face
B
Outer mitochondrial membrane
C
Endoplasmic reticulum
D
Nuclear pore
E
Centrosome
Explanation
Peroxisomes are described as pinching off from the endoplasmic reticulum.
Option Validity
A) The Golgi apparatus processes and packages material but is not the stated origin of peroxisomes.
B) The mitochondrial outer membrane is not the stated origin of peroxisomes.
D) Nuclear pores permit communication across the nuclear envelope but do not generate peroxisomes.
E) The centrosome contains centrioles and participates in chromosome movement rather than peroxisome formation.
Further Reading
Saxena - MRCOG-1 Basic Sciences - Biochemistry, printed p.126.