The human nervous system

The human nervous system is extremely complex, yet we rely on it every day to help us stay safe and healthy. The nervous system is the body’s inner communication system and is made up of the body’s many nerve cells. … Read More

Bioenergetics

Bioenergetics focuses on how energy is able to transform in living organisms. In plants the sun provides the cells with energy through the process of photosynthesis. The pigment that absorbs light energy for photosynthesis is called the chlorophyll. This green … Read More

Infection and response

Unfortunately we all get ill from time to time but thankfully our bodies work very hard to ensure we don’t keep catching the same illness over and over again. Different cells have different molecules presented on their surface to help … Read More

Plant tissues

Just like us, plants are multicellular organisms which contain differentiated cells, tissues and organs. Tissues are vital in the functioning of a plant and provide some really crucial functions to keep the plant alive. First of all we are going … Read More

Cancer

It is now estimated that one in two people will get diagnosed with some form of cancer in their lifetime – but what actually causes cancerous cells and how can they be treated. Cancer is caused by uncontrolled cell division, … Read More

Health issues

Unfortunately we all get ill from time to time but thankfully our bodies work very hard to ensure we don’t keep catching the same illness over and over again. Different cells have different molecules presented on their surface to help … Read More

The blood

The blood. Fair enough it can gross quite a few people out, but it’s super important to humans and many other animals because it delivers necessary substances such as nutrients and oxygen to the cells and transports metabolic waste products … Read More

The heart and blood vessels

The mass transport system in mammals is the circulatory system. This system uses the blood to transport substances between the heart and tissues. Mass transport systems are used to carry raw materials from specialised exchange organs to the body cells … Read More

The human digestive system

The human digestive system is how we turn what we eat into important nutrients and energy for the body. The food we eat has to be broken down into other substances that our bodies can use. This is called digestion. … Read More

Active transport

Substances need to move around the body of an organism – obviously. To do this they must cross biological membranes. There are a number of ways this can happen, including: passive transport, active processes and bulk transport. Active transport can … Read More