Topic: Biology
The stroma is the body’s support system that surrounds and helps hold organs and tissues in place. It is mostly made up of connective tissue, blood vessels, lymphatic vessels, and nerves, which work together to provide nutrients and remove waste/extra fluid. In cancer, the stroma can sometimes be ‘hijacked’ by the tumour – instead of […]
A group or layer of cells that work together to perform a specific function, for example, muscle tissue which enables movement of the body.
The process of growing old. In biology, senescence is a process by which a cell ages and permanently stops dividing but does not die. Over time, large numbers of old (or senescent) cells can build up in tissues throughout the body. These cells remain active and can release harmful substances that may cause inflammation and […]
Unspecialised cells which can later develop into specialised cells such as muscle cells, blood cells, or brain cells, depending on what is needed by the body,
A part of the body that is made up of cells and tissues that perform a specific function. Examples of organs include the heart, lungs, and skin.
Proteins are the building blocks of cells and hence our bodies, such as skin, hair and antibodies. They play a crucial role in cellular processes – including signalling, which is how our cells talk to each other – and are needed for the body to function normally.
A collection of microorganisms such as bacteria, viruses, and fungi that live in a particular environment, including the human body or parts of the body. The human microbiome plays an important role in health and disease. For example, the human gut microbiome is uniquely shaped by an individual’s diet, lifestyle, genetics, and environment. Research has […]
A very thin layer that acts as a selective barrier. Membranes surround every living cell (called cell membranes) and control what substances can move in and out of the cell.
The process by which a single cell, called the parent cell, splits to form new cells, known as daughter cells. Cell division is essential for growth, damage repair and reproduction.
Red blood cells, which carry oxygen from the lungs to the rest of the body.