MCAT MCAT Meaning by word 065

the energy needed to start a chemical reaction

the loss of water from plants through the stomata

gas used by plants in photosynthesis and made in respiration

electromagnetic spectrum

a metal showing few properties of the transition metals

microbe that causes decay

the jawbone

microscope which can magnify an object over 250; 000 times so that you can see the fine details of cells

a space that contains no air or gases

the cellular layer that forms around an embryo that protects and nourishes it

the nerve that carries messages from the eye to the brain

origin of an axon of a nerve cell at which an action potential can be initiated

smallest, commonest atom made of one proton and electron; chemical element with the symbol H that makes up most organic compounds

the last part of the large intestine from the sigmoid colon to the anal canal

bleeding from the nose

medical condition of long sightedness

compound formed by replacing one or more hydrogen atoms in alkanes with halogen atoms

isomer that has identical covalent arrangements but are different with regard to the arrangement of their groups in space

the monthly bleeding that occurs cyclically in a women during the reproductive years; menses

the study of life

a small swelling of tissue

molar concentration of a solution; number of moles of solute per liter of solution

control characteristics of the plant

inflammation or infection of the liver

yellow color of the skin due to high levels of bilirubin in the blood

either one of a pair of chemical components whose molecular structures have a mirror-image relationship to each other

liquid in the inner ear

gases such as carbon dioxide and methane that absorb infrared radiation which warms the atmosphere

substance that contains hydroxyl ions when dissolved in water

contraction of the pupil in the eye