4.1.1.2 Animal and plant cells

Cub cellular structures in animal cells

Nucleus

Cytoplasm

Cell membrane

Mitochondria

Ribosomes

Nucleus

enclose genetic material

Contains DNA coding for a particular protein needed to build new cells

Enclosed in nuclear membrane

Cytoplasm

Watery solution where chemical reactions take place (eg first stage of respiration)

Contains enzymes (biological catalysts)

Organelles are found in it

Cell membrane

Controls the substances entering and leaving the cell

Mitochondria

Where aerobic respiration occurs

Providing energy for the cell

Ribosomes

Sites of protein synthesis

Found on a structure called the rough endoplasnic reticulum

Sub cellular structure of plant cell structures

Nucleus

Cytoplasm

Cell membrane

Mitochondria

Ribosomes

Cell wall

Permanent vacuole

Chloroplast

Chloroplast

Green structures contains chlorophyll pigment which harvests light needed for photosynthesis

the site of photosynthesis , providing food for the Los t

Cell wall

Made from cellulose, strengthens the cell

Permanent vacuole

Filled with a fluid called cell sap

The vacuole helps give the plant cell it shape

Cubsellular structures of bacterial cells

Cytoplasm

Cell membrane

Cell wall

DNA

Plasmids

Flagella

Cell wall of bacterial cell

Made of a different compound (peptidogylcan)

Single circular strand of DNA

No nucleus, floats freely

Plasmids

Small rings of DNA

Flagella

aids movements (rotate or move in whip- like motion)

To be able to calculate the size or area of sub cellular structures

You should find a shape such as a circle, a rectangle that resembles it, the rules that would normally be used to calculate the size/area of that shape (e.g. length x width) of a rectangle should be applied to it