Biology Quiz 6

In MRI (Magnetic resonance imaging) machine, a magnetic wave is used. MRI is a method of using a strong magnetic field to produce an image of the inside of a person's body. Unlike X-ray, CT, and PET scans; MRIs do not use radiation and are considered a non-invasive procedure.

Adrenal (also known as suprarenal glands) are small, triangular-shaped glands located on top of both kidneys. Adrenal glands produce hormones that help regulate your metabolism, immune system, blood pressure, response to stress and other essential functions.

The human body is home to millions of microorganisms (microbes). Some microbes make us sick, others are important for our health. The most common types are bacteria, viruses, protozoa and fungi. Viruses are the most adaptable and versatile microorganisms. Viruses can do nothing until they enter a living cell but when enter a living cell they would be able to multiply.

Trypanosomiasis, also known as sleeping sickness, is caused by microscopic parasites of the species Trypanosoma brucei.

Non-conventional energy (also known as Renewable energy) sources are sources that are renewed by natural processes on a continual basis. Energy generated by using wind, solar, small hydro, tides, geothermal heat and biomass is known as non-conventional energy. Hydroelectric power is a renewable energy source. It uses the energy of running water, without reducing its quantity, to produce electricity.

Human kidney disorder is caused by the pollution of Cadmium. Heavy metals (mercury, lead, cadmium) are among the best-known environmental pollutants causing kidney disease.

Taste buds are small cells on the tongue that allow to recognize the flavours of food and drink. The tip of the tongue contains the 'sweet' taste buds while the 'bitter' taste buds are present in the back. Either side of the front tongue contains 'salt' taste buds while the 'sour' taste buds are present behind this.

The ability of the eye to see in the dark is due to the production of a purple pigment known as Rhodopsin. Rhodopsin, also known as visual purple, is the photopigment used by the rods and is the key to night vision. It is a pigment-containing sensory protein that converts light into an electrical signal.

Digestive enzymes are a group of enzymes that break down polymeric macromolecules into their smaller building blocks, in order to facilitate their absorption by the body. Insulin is not a digestive enzyme but a hormone made in the pancreas, a gland located behind the stomach. It allows the body to use glucose for energy.

Hamburger effect is otherwise known as Chloride shift. Chloride shift is a process which occurs in a cardiovascular system and refers to the exchange of bicarbonate (HCO₃⁻) and chloride (Cl⁻) across the membrane of red blood cells (RBCs).