Pre-test Biochemistry

This region in the nucleus is the site of ribosome assembly.

• nuclear membrane

• chromatin

• nucleolus

• chromosome

Which of the following cellular structures is unique in eukaryotes.

• Plasma membrane

• internal cellular membrane

• Ribosomes

• Golgi apparatus

These organelles consist of membranous sacs containing powerful oxidase enzyme , and they use molecular oxygen (O2) to detoxify harmful substances.

• Lysosomes

• peroxisomes

• Golgi apparatus

• mitochondria

The cellular particles are often referred by their sedimentation coefficient value, for example, 70s ribosome that is expressed in terms of 10 seconds. The abbreviation stands for

• Subunit

• seconds

• Svedberg

• none of the above

These are organelles that contain the enzymes for pyruvate oxidation, citric acid cycle, beta oxidation of fatty acids, oxidative phosphorylation and ETC.

• Golgi apparatus

• nucleus

• Lysosomes

• mitochondria