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Biology Midterm Review 09-10 Answer Key

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Scientific Method and Safety
#1 You do not have to read the directions completely through during a lab exercise What is false?
#2 A testable possible explanation of an observation What is a hypothesis?
#3 describes the use of the equipment and materials in an experiment What is a procedure?
#4 A planned procedure to test a hypothesis What is an experiment?
#5 the group that is unchanged when conducting an experiment What is the control group?
Chemistry of Life
#1 In what type of bond are electrons shared What is a covalent bond?
#2 The smallest unit of matter that cannot be broken down by chemical means What is an atom?
#3 A solution with a pH of 1.5 would be considered What is very acidic?
#4 Class of compunds that store and transmit genetic information what are nucleic acids?
#5 This occurs when a enzyme and a substrate interact at an active site What is activation energy is reduced?
Cell Structure
#1 The organelles associated with plant photosynthesis What are chloroplasts?
#2 The smallest units of life What is a cell?
#3 One difference between prokaryotes and eukaryotes What is prokaryotes do not have a nucleus?
#4 Most of a cell’s ATP is produced in this organelle what is the mitochondria?
#5 The organelle that ontain digestive enzymes that break down proteins, nucleic acids, lipids, and carbohydrates. What is the lysosome?
Cell and Thier Environment
#1 The diffusion of water into or out of a cell What is osmosis?
#2 The result of diffusion What is substances eventually become balanced on both sides of a membrane?
#3 A cell will swell when it is placed in What is a hypotonic solution?
#4 Active transport requires What is energy?
#5 Molecules that are too large to be moved through the membrane can be transported into the cell by What is endocytosis?
Photosynthesis and Cellular Respiration
#1 the main source of all energy on Earth What is the sun?
#2 The process in which plants capture energy and make organic molecules What is photosynthesis?
#3 Which of the following is not part of cellular respiration, electron transport, Krebs cycle, glycolysis, or Calvin cycle what is the Calvin Cycle?
#4 The result of a phosphate group being removed from an ATP molecule What is a substantial amount of energy is released?
#5 For each molecule of glucose that is broken down during aerobic respiration, the Krebs cycle produces What is 2 ATP?
Final Question
Name the parts of the cell theory What are: all living things are made of one or more cells, cells are the basic units of structure and function in organisms, and all cells arise from existing cells.