Nucleus

Question 1

Function of nucleus

Answer 1

•hereditary material
-> templates used in protein synthesis

• condense to form chromosomes
• control activities and gene regulation

Question 2

Comprises of?

Answer 2

1. Nuclear envelop
2. Nucleoplasm
3. Chromatin
4. Nucleolus

Question 3

Structure of nuclear envelope

Answer 3

1. Outer membrane-ER
2. Inner membrane-nucleoplasm
3. Nuclear pores
   - >channels

Question 4

Describe the function of nuclear envelope

Answer 4

1. Separate-> optimal environment
   - > transcription to occur
2. Regulate movement
   - mRNA into cytoplasm
   - ribosomes and nucleotides into nucleoplasm

Question 5

Nucleoplasm contains?

Answer 5

Chromatin, nucleolus, nucleotides and proteins

Question 6

Function of nucleoplasm

Answer 6

Site for transcription of DNA into RNA

Question 7

Function of nucleolus

Answer 7

1. Px rRNA
   - contain genes coding for rRNA
2. Partially assemble ribosomes
   - associating rRNA and ribosomal proteins;
   - form large and small subunits