Biology 101 Test 1 (Full Study Guide Questions And Answers.

About 25 of the 92 natural elements are known to be essential to life. Which 4 of these 25 make of 96% of living matter? - carbon, hydrogen, nitrogen, oxygen Knowing just the whole number of an element allows inferences about which of the following? - the number of protons plus neutrons in the element When two atoms have the same level of attraction for electrons, the type of interaction between these two atoms can be described as - nonpolar covalent bond What is the difference between covalent bonds and ionic bonds? - Covalent bonds involve the sharing of electrons between atoms; ionic bonds involve the electrical attraction between atoms of opposite charge The element present in all organic molecules is - carbon A carbon atom is most likely to form which of the following bonds with other atoms? - Covalent bonds Which two functional groups are always found in amino acids? - carboxyl and amino Which of the following is NOT a correct monomer/polymer pairing defining a macromolecule? - Amino acid/DNA Which of the following best summarizes the relationship between dehydration reactions and hydrolysis? - Dehydration reactions assemble polymers, and hydrolysis reactions break down polymers The smallest unit show below is: - atom In the scientific method, a formulation of a hypothesis occurs before the: - It comes firstDuring the citric acid cycle which is not produced: - NADPH A process which occurs in muscle cells during periods of oxygen deprivation is: - anaerobic respiration ATP is involved in the process of: - active transport Phagocytosis is a type of: - Endocytosis Golgi complex - protein processing Lysosomes - Contain digestive enzymes that act on particles that are phagocytosed Mitochondria - Aerobic cellular respiration Smooth ER - detoxification of alcohol and membrane lipid production Rough ER - its ribsomes produce secretory proteins Plasma Membrane - A fluid mosaic Thlyakoid - light-dependent reactions Water - high specific heat Carbon Dioxide - organic fuel for photosynthesisCholesterol - confers fluidity Energy is neither created nor destroyed (T or F) - True A theory can never be disproven (T or F) - False