Cell structure

CYTOPLASM

• consists of a jelly-like matrix suspended between plasma membrane and nuclear membrane.
• contains of organic and inorganic substances.

NUCLEUS

• contains the nucleoplasma, necleolus and chromosomes.

PLASMA MEMBRANE

• made of proteins and phospholipids.
• semi permeable membrane.

CELL WALL

• composed of cellulose, a tough and fibrous carbohydrate.

VACUOLE

• contain fluid sac called cell sap.
• surrounded by tonoplast and semi permeable membrane.
• young plant cell has numerous small vacuoles where as matured plant cell has large vacuoles.

MITOCHONDRIA

• involved in cellular respiration.
• broken down the food substances with the help of respiration enzymes in the mitochondria.

RIBOSOMES

• attached to the surface of rough endoplasmic reticulum or suspended freely in the cytoplasm.

ENDOPLASMIC RETICULUM

• two types of endoplasmic reticulum

1. rough endoplasmic reticulum
2. smooth endoplasmic reticulum

GOLGI APPARATUS

• the golgi is composed of membrane-bound stacks known as cisternae.

LYSOSOME

• membrane-bound sacs that contains hydrolytic enzymes.

CENTRIOLES

• composed of complex arrangement microtubules and located outside the nucleus.

CHLOROPLAST

• contain the green pigment chlorophyll.

Cell Structure

1. Cells are basic units for all living organisms.
2. Living component of a cell is called protoplasm (consists of cytoplasm and nucleus).Protoplasm is surrounded by a thin layer of plasma membrane.
3. The cytoplasm contains structures called organelles.
4. Plant cells have an outer boundary cell called the cell wall.

Plant Cell

Classified of a Plant Cell

•Cytoplasm
•Nucleus
•Endoplasmic reticulum (ER)
•Cell wall
•Ribosome
•Chloroplast
•Golgi apparatus
•Mitochondria
•Vacuole

Animal Cell

Classified of an Animal Cell

•Cytoplasm
•Nucleus
•Endoplasmic reticulum (ER)
•Ribosome
•Golgi apparatus
•Lysosome
•Centrioles
•Mitochondria
•Plasma Membrane