Nucleus Structure and Function Quiz

What is the primary function of the nuclear envelope?

• To produce energy for the cell

• To store genetic information

• To separate the nucleoplasm from the cytoplasm

• To synthesize proteins

Which structure is responsible for the rough appearance of the outer nuclear membrane?

• Mitochondria

• Nucleolus

• Chromatin

• Ribosomes

What is the function of nuclear pores?

• To synthesize DNA

• To regulate the exchange of macromolecules

• To store calcium ions

• To produce ATP

What is the main role of the nucleoplasm?

• To synthesize lipids

• To provide energy to the cell

• To support chromatin and nucleolus

• To transport proteins

Which proteins are primarily found in the nucleoplasm?

• Carbohydrate proteins

• Lipid proteins

• Non-histone proteins

• Histone proteins

Which of the following is a component of the nuclear matrix?

• Fibrous lamina

• Ribosomes

• Mitochondria

• Golgi complex

What is the role of the nuclear matrix in the nucleus?

• To maintain the shape of the nucleus

• To produce ribosomes

• To synthesize proteins

• To store genetic material

What is the composition of chromatin?

• DNA and lipids

• RNA and lipids

• DNA and proteins

• Proteins and carbohydrates

What is the primary difference between heterochromatin and euchromatin?

• Euchromatin is tightly coiled, heterochromatin is not

• Heterochromatin is genetically active, euchromatin is not

• Heterochromatin is genetically inert, euchromatin is active

• Euchromatin contains more RNA than heterochromatin

Which type of chromatin is involved in transcription?

• Neither heterochromatin nor euchromatin

• Heterochromatin

• Euchromatin

• Both heterochromatin and euchromatin