Cells and tissues

Contains much of the info on PPW.

Cells with common structure

These combine together to form tissue.

Structure, support, growth, transport, metabolism, reproduction, etc

Function of cells.

mitosis

Is a type of cell division in which one parent cell divides into two identical daughter cells - for growth, development, repair or replacement of damaged or old body cells.

meiosis

is a specialised type of cell division that produces four genetically unique sex cells. Is essential for sexual reproduction.

mitochondria

makes energy (atp) for the cell. Also known as the ‘power house of the cell’.

cytoplasm

jelly-like substance that holds and protects cell parts.

endoplasmic reticulum (ER)

carries and makes proteins and fats

ribosome

makes proteins

epithelial tissue

is a type of tissue that covers the surfaces of the body and lines organs, cavities and tubes. Protects the body and helps in absorption, secretion and sensation.

simple squamous cells

flat, thin cells that are found, for example, in the lungs and blood vessels. Their main functions are diffusion and filtration.

stratified squamous

many layers of flat cells that are found, for example, in the skin, mouth and throat. Their main function is protection against wear and tear.

connective tissue

is a type of body tissue that supports, connects, or binds other tissues and organs. Includes things like bone, cartilage, blood, fat, etc.

adipose tissue

Is fat tissue that stores energy and protects organs. Is a type of connective tissue.

dense connective tissue

is strong and forms tendons and ligaments. Is a type of connective tissue.

brain tissue

is made mostly of neurons and glial cells. Is a type of nervous tissue.

nervous tissue

is the type of tissue that receives and sends signals in the body. It helps you think, feel, move and respond to your surroundings.

muscular tissue

is a type of tissue that helps the body move by contracting and relaxing.

skeletal muscle

is a type of muscular tissue that moves bones, like biceps in your arms (voluntary).

smooth muscle

is a type of muscular tissue that is found in organs like the stomach and intestines (involuntary).