Ac-Hpat Biology Exam Questions And Answers

AC-HPAT Biology Exam Questions and AnswersMacromolecules - Answer- A very large organic molecule composed of many smaller moleculespassive transport - Answer- the movement of substances across a cell membrane without the use of energy by the cell (diffusion)active transport - Answer- Energy-requiring process that moves material across a cell membrane against a concentration differencecatalyst - Answer- substance that speeds up the rate of a chemical reactionfluid mosaic model - Answer- model that describes the arrangement and movement of the molecules that make up a cell membraneEffect of qualitative factors on rate of diffusion of molecules across a plasma membrane? - Answer- The higher the temperature, the more kinetic energy the particles will have, so they will move and mix more quickly.Structure and function of carbohydrate - Answer- sugars and starches that the body uses for energy. Consists of carbon, hydrogen, and oxygen. Typically in a 1:2:1 ratioWhat are the tree main types of carbohydrates - Answer- 1. Monosaccharides - simple sugars ( ie glucose, 6 carbon, fructose and galactose) 2. Disaccharides which are double sugars ( ie sucrose, maltose, lactose) (consist of two monosaccharides bonded together through a dehydration synthesis reaction [ results in loss of water molecule]