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28 paź 2018 · Autotroph Definition. Autotrophs are organisms that can produce their own food, using materials from inorganic sources. The word “autotroph” comes from the root words “auto” for “self” and “troph” for “food.”. An autotroph is an organism that feeds itself, without the assistance of any other organisms.
15 sty 2021 · Glycolysis is the only step which is shared by all types of respiration.In glycolysis, a sugar molecule such as glucose is split in half, generating two molecules of ATP. The equation for glycolysis is: C 6 H 12 O 6 (glucose) + 2 NAD+ + 2 ADP + 2 P i → 2 CH 3 COCOO− + 2 NADH + 2 ATP + 2 H 2 O + 2H +. The name “glycolysis” comes from the Greek “glyco,” for “sugar” and “lysis ...
9 cze 2020 · Definition. An action potential is the result of a very rapid rise and fall in voltage across a cellular membrane, with every action potential (impulse) similar in size. The response of a nerve or muscle cell to an action potential can vary according to how frequently and for what duration the action potentials are fired.
15 sty 2021 · Definition. Natural selection is a pressure that causes groups of organisms to change over time. Animals inherit their genetics from their parents or ancestors, and the environment is constantly changing. So, no organism is perfectly adapted to its environment. Thus, natural selection is constantly influencing the evolution of species.
28 kwi 2017 · Prokaryote Definition. Prokaryotes are unicellular organisms that consist of a single prokaryotic cell. Prokaryotic cells are simple cells that do not have a true nucleus or other cell organelles. Bacteria and Archaea are the two domains of life that are prokaryotes. Prokaryotes can be contrasted with eukaryotes, which have more complex ...
1 paź 2020 · Osmosis Definition. Osmosis is a type of diffusion that, in biology, is usually related to cells. Diffusion is when molecules or atoms move from an area of high concentration to an area of low concentration. Osmosis is when a substance crosses a semipermeable membrane in order to balance the concentrations of another substance.
15 maj 2017 · Anthropometry Definition. Anthropometry is the science of obtaining systematic measurements of the human body. Anthropometry first developed in the 19 th century as a method employed by physical anthropologists for the study of human variation and evolution in both living and extinct populations. In particular, such anthropometric measurements ...
