Reflection 1: The Cell’s Organelles & Functions

Are you ready to learn? I hope you are because that is what we are doing today! So get your thinking caps on 🙂

During the first week of this course other than orientation we were taught The Cell. Throughout secondary school and sixth form, learning about the cell was not very interesting neither was it very difficult; however, Mr. Matthew incorporated images, quizzes and videos to make this topic learning friendly.

Today we are going to look at some of the organelles found in a cell and their various functions.

Do note that these organelles may be present in both animal & plant cell or only one of the two.

An organelle can be defined as a specialized sub-unit within a cell that is usually separated by its own lipid bilayer and has its own function.

Below is a summary of the functions of various organelles found in the cell.

Organelle Function
Nucleus Maintain the integrity of genes and control the activities of the cell
Rough Endoplasmic Reticulum Modification after protein made at ribosomes
Smooth Endoplasmic Reticulum Lipid metabolism, carbohydrate metabolism, steroid synthesis & detoxification
Ribosomes Protein synthesis
Golgi Apparatus Packaging & distribution of enzymes
Lysosomes Breakdown of various groups by various enzymes
Mitochondria Manufacture of ATP & site of aerobic respiration
Proteasomes Degraded unneeded or damaged proteins within the cell, regulate the concentration of particular proteins & removes excess enzymes
Peroxisomes Breakdown of very long chain fatty acids and amino acids by use of oxidative enzymes

Video: Summary of the Cell Organelles & Functions

Activity 1- Can you identify the various organelles in the picture below?

Animal_Cell.svg

 

 

 

 

Answers: 1 Nucleolus, 2 Nucleus,3 Ribosomes,4 Vesicle,5 Rough endoplasmic reticulum,6 Golgi apparatus,7 Cytoskeleton,8 Smooth endoplasmic reticulum,9 Mitochondria,10 Vacuole,11 Cytosol,12 Lysosome, 13 Centrioles within Centrosome,
14 Cell membrane

Reference: Wikipedia

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