Biology Quiz 7

Ketone bodies are chemicals that the body makes when there is not enough insulin in the blood and it must break down fat instead of the sugar glucose for energy. Testing for ketones in urine is important in people with diabetes.

An ecosystem consists of a biotic community and its non-living elements. It consists of all the organisms and the physical environment with which they interact. These biotic and abiotic components are linked together through nutrient cycles and energy flows.

Starch, glycogen and cellulose are all polymers of glucose. They differ in the type of glucose present and the bonds which link the glucose monomers together.

Blood cancer is otherwise called Leukemia. Leukemia is cancer of the body's blood-forming tissues, including the bone marrow and the lymphatic system.

Myopia, also known as shortsightedness or nearsightedness, is a very common vision disorder. It is the inability to see distant objects clearly unless they are relatively close to your eyes. This causes light to focus in front of the retina instead of directly on it.

A polymer is a substance or material consisting of very large molecules, or macromolecules, composed of many repeating subunits. polyethylene (alse known as Polythene) is a light, versatile synthetic resin made from the polymerization of ethylene.

Dinosaurs went extinct about 65 million years ago (at the end of the Cretaceous Period), after living on Earth for about 165 million years.

All eukaryotic cells have a surrounding plasma membrane (cell membrane). The plasma membrane is made up of a phospholipid bilayer with embedded proteins that separate the internal contents of the cell from its surrounding environment.

Araneology is the study of spiders. It is the scientific study of arachnids, which comprise spiders and related animals such as scorpions, pseudoscorpions, and harvestmen. The raising of bees is known as apiculture. The study of aphids is known as aphidology. Acarology is the study of mites and ticks.

One of the major differences between plant and animal cells is the presence of chloroplasts. Plant cells have chloroplasts while animal cells don't. Chloroplasts enable plants to perform photosynthesis to make food. Plant cells have a cell wall, but animal cells do not.