Nucleous

Question 1

For cells the nucleus is the

Answer 1

Headquarters or the control centre

Question 2

Deoxyribonucleic acid (genetic material)

Answer 2

Is dna

Question 3

DNA is

Answer 3

A blueprint that contains all the instructions needed for building the whole body.DNA has genes, that carry all of the instructions for building proteins.

Question 4

DNA is necessary

Answer 4

For cell reproduction

Question 5

If a cell loses its nucleus

Answer 5

It will self destruct

Question 6

The nucleus conforms its

Answer 6

Shape to the cell

Question 7

Nuclear envelope

Answer 7

Nuclear envelope is. Double layer membrane surrounding the nucleus

Perinuclear space fluid-filled space between the two membranes

Nuclear pores: openings where the two membranes fuse,allowing molecules to pass in and out

Selective permeability:regulates what enters and exits the nucleus

Protects dna : keeps genetic material safe inside the nucleus

Nucleoplasm:jelly- like fluid inside the nucleus where components are suspended

Question 8

Nucleolus

Answer 8

Nucleolus:one or more small, dark-staining round structures inside the nucleus

Function:the nucleolus is where ribosomes are made

Ribosomes assembly: ribosomal rna and proteins combine to form ribosomes.

Ribosomes:once assembled, ribosomes move to the cytoplasm,where they help make proteins

Question 9

Chomatin

Answer 9

Chomatin:Dna wrapped around protein called histones,forming a loose network like beads on string.

When a cell is not devided chromatin is scattered throughout the nucleus

In dividing cells chromatin condenses into thick,rod like structures called chromosomes

Chromosomes are formed when chromatin coils and condenses during cells