Review Of Cells

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Information about Review Of Cells

Published on September 24, 2008

Author: sacklax40

Source: slideshare.net

Review of Cells

Types of Cells Prokaryotic: Do not have a nucleus Bacteria, protists and simple single celled organisms. Eukaryotic: Have a true nucleus Include plant and animal cells

Prokaryotic: Do not have a nucleus

Bacteria, protists and simple single celled organisms.

Eukaryotic: Have a true nucleus

Include plant and animal cells

Plasma membrane Made up of: Phospholipids (bilayer) Carbohydrates (receptor molecules) Proteins (transport channels) Cholesterol (structure and stability)

Made up of:

Phospholipids (bilayer)

Carbohydrates (receptor molecules)

Proteins (transport channels)

Cholesterol (structure and stability)

Cell Organelles Cell membrane Cell wall (plants only) Endoplasmic reticulum Smooth and Rough Golgi apparatus Mitochondria Chloroplasts (plants only)

Cell membrane

Cell wall (plants only)

Endoplasmic reticulum

Smooth and Rough

Golgi apparatus

Mitochondria

Chloroplasts (plants only)

Cell Organelles Lysosomes Vacuole Centrioles (visible in animals) Nucleus Nucleolus Ribosomes

Lysosomes

Vacuole

Centrioles (visible in animals)

Nucleus

Nucleolus

Ribosomes

Transport How do things molecules or particles move? Gases and Liquids can have particles suspended in them Random Collisions of these particles create movement, and cause them to spread out.

How do things molecules or particles move?

Gases and Liquids can have particles suspended in them

Random Collisions of these particles create movement, and cause them to spread out.

Passive Transport Does not require energy Two types: Diffusion: from high concentration to low concentration. Until an equilibrium is reached. Osmosis: the diffusion of water. Facilitated Diffusion: The diffusion of larger molecules, with the help of transport protein. Facilitated Diffusion

Does not require energy

Two types:

Diffusion: from high concentration to low concentration. Until an equilibrium is reached.

Osmosis: the diffusion of water.

Facilitated Diffusion: The diffusion of larger molecules, with the help of transport protein.

Active Transport Transport across the membrane that requires the use of energy. Usually occurs up the concentration gradient Uses ATP

Transport across the membrane that requires the use of energy.

Usually occurs up the concentration gradient

Uses ATP

 

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