Unit 5 Anatomy and Physiology Cells

To identify the component parts of a cell. Aim: To introduce the fundamentals of anatomy and physiology and cell function. Objectives: To identify the component parts of a cell. To describe the functions of the main cell components.

The human body is made up of: Cells Tissues Organs Systems

What is a cell? The “building block” of all living things. All living things made up of 1 or more cells Organised in groups each of which have specific functions

Cells - the facts The human body is made up of millions of tiny cells These can only be seen under a microscope They appear in many different shapes and sizes and have different functions Each cell has a nucleus which contains the genetic coding called DNA Cells cannot function by themselves The Function of Cells Video

Practice Quiz Individually complete the practice quiz sheet. After you have completed the quiz you need to score your sheet. Score 2 points for every correct answer.

Cells Cell Organelles Watch the video and take some notes, you will need this information later!!!! Now have a go at labelling the diagram with the right parts

A Human Cell

What do they all do? Complete the table with the answers that you think are correct.

What is? DNA The chemical containing the genetic code CHROMOSOME A thread shaped body consisting of DNA

Nucleus The largest organelle. Cell survival and reproduction happens here Contains DNA, the chromosomes and proteins and the chromatin

Nuclear Envelope a physical barrier (membrane) separating the contents of the nucleus from the surrounding cytoplasm

Endoplasmic reticulum is concerned with the manufacture and transportation of materials in the cell. Rough ER - are important in the production and transportation of proteins. Smooth - creates and stores steroids

Ribosomes Produce the protein in a cell.

Cytoplasm This is the fluid that fills the cell. The cells organelles are suspended in the cytoplasm.

Mitochondria Mitochondria are know as the powerhouses of the cell. They take in nutrients, break them down and creates energy for the cell This process is known as cellular respiration

Lysosome Lysosomes hold enzymes that were created by the cell. The purpose of the lysosome is to digest things.

Golgi Complex Is a packaging organelle. It gathers simple molecules and combines them to make molecules that are more complex. It then takes those big molecules, packages them in vesicles, and either stores them for later use or sends them out of the cell.