energy Flashcards
energy
something has energy it has the ability to make something happen when that energy is transfered
respiration
the process of living things in which oxygen is used to release the energy in food
glucose
a simple sugar molecule
aerobic respiration
respiration that involves oxygen
reactant
a starting substance in a chemical reaction
photosynthesis
the process by which energy from sunlight, water and carbon dioxide are used by green plants to produce glucose and oxygen.
product
a substance formed in a chemical reaction
germinating
beginning to grow into a plant from a seed
mitochondria
the structure in a cell that produces energy
cell membrane
the layer around the cell that controls the substances entering and leaving the cell.
enzymes
a substance that enable a chemical process in a living organism
digestive system
a group of organs working together to enable the digestion of food
breathing system
takes oxygen into the body and carbon dioxide out
circulatory system
the heart and blood vessels transport the essential substances around the body in blood.
phloem
a tissue made up of long tubes that transport glucose made in leaves of a plant to other parts
stomata
tiny pores on the underneath surface of a leaf which gases can move in and out
anaerobic respiration
respiration without using oxygen
lactic acid
a substance produces in anaerobic respiration which builds during vigorous exercise and causes an aching or burning feeling in the muscles.
oxygen debt
the oxygen needed to break down lactic acid produced as a result of vigorous exercise
glycogen
a storage molecule formed from a chain of glucose units and often stored in the liver
fermentation
type or anaerobic respiration that produces ethanol and carbon dioxide
microbe
tiny organisms like bacteria and viruses that can only be seen with a microscope
yeast
a unicellular fungus
brewing
cereal grains are soaked in water and fermented yeast
fossil fuel
coal, natural gas and oil that were formed by the compressed remains of the plants and other organisms that died millions of years ago
independent variable
a variable in an experiment that affects the outcome and is changed
dependent variable
the variable that is measured in an investigation
catalyst
substance that speeds up a chemical reaction
