Biology Vocabulary - BioChemistry Crossword Puzzle

QUESTIONS LIST:

• evaporation : a change of state from liquid to gas.
• catalyst : a substance that increases the rate of a chemical reaction by lowering the activation energy without being used up in the reaction. in biological systems, enzymes act in this way.
• temperature : the average kinetic energy of the particles in a substance, measured in degrees celsius (°c).
• yield : the amount of a product obtained.
• alkali : a substance with a ph of more than 7.
• active transport : the movement of substances from a more dilute solution to a more concentrated solution (against a concentration gradient). this requires energy from respiration.
• osmosis : the diffusion of water from a dilute solution to a concentrated solution through a partially permeable membrane.
• exothermic : a reaction that transfers energy to the surroundings.
• surface area : the total area of the surface of an object.
• gas exchange : the diffusion of gases from an area of higher concentration to an area of lower concentration.
• enzyme : a biological catalyst that speeds up the rate of a reaction
• concentration : a measure of the amount of solute in a solution.
• ph : a measure of the acidity or alkalinity of a substance on a scale of 0 to 14.
• acid : a substance with a ph of less than 7.
• diffusion : the spreading out of particles resulting in a net movement from an area of higher concentration to an area of lower concentration.
• endothermic : a reaction that takes in energy from the surroundings.
• absorb : to receive or take in.