BSC 1005 Final Exam Questions With Answers Graded A+ Assured Success

Photosynthesis contributes to plant growth by _____. - taking in carbon dioxide and making sugars (carbohydrates) An object at rest has no ______ energy, but it may have ______ energy resulting from its location or structure. - kinetic... potential What is biology? - the scientific study of life Which of the following is not a property of life? - Populations of organisms rarely change over time. What are the two main processes that ecosystems depend upon? - nutrient recycling and energy flow Which of the following is not recycled but is lost from ecosystems? - energy Which of the following is a producer? - oak tree Humans are ______. - Consumers Which of the following structures can perform all the activities required for life? - Cells Relative to prokaryotic cells, eukaryotic cells are usually ______. - Larger and more complex Humans are composed of ______ cells. - EukaryoticThe principle that energy cannot be created or destroyed is known as ______. - conservation of energy Humans convert approximately ______ of the energy stored in food to useful work. - 34% Ten kilocalories are equivalent to ______ calories. - 10,000 Energy is transferred from ATP to other molecules by transferring a(n) ______. - phosphate group Anything that prevents ATP formation will most likely ______. - result in cell death Usually, enzymes are ______. - proteins In what way(s) is the science of biology influencing and changing our culture? - all of the above The sum total of all the chemical reactions that occur in organisms is called ______. - metabolism Enzymes increase the rate of a reaction by ______. - decreasing activation energy Which of the following is an autotroph? - pine tree What is the function of stomata? - gas exchange Through what structure(s) do plants obtain most of their water? - roots What are grana? - stacks of membranous sacsWhich of the following equations best summarizes photosynthesis? - 6 CO2 + 6 H2O → C6H12O6 + 6 O2 In photosynthesis, redox reactions ultimately transfer electrons from ______ to ______. - H2O . . . CO2 Which of the following is produced during the light reactions of photosynthesis? - O2 The Calvin cycle requires ______ and ______ from the light reactions in order to operate. - ATP... NADPH The products of the light reactions of photosynthesis are ______. - ATP... NADPH Who discovered the structure of DNA? - Watson and Crick Evidence for the spiral nature of DNA came from ______. - X-ray crystallography studies What type of chemical bond joins the bases of complementary DNA strands? - hydrogen After replication, ______. - each new DNA double helix consists of one old strand and one new strand How many amino acids are common to all living systems? - 20 How many nucleotides make up a codon? - 3 Transcription is the ______. - manufacture of a strand of RNA complementary to a strand of DNAIf a strand of DNA has the sequence AAGCTC, transcription will result in a(n) ______. - single RNA strand with the sequence UUCGAG Which of the following enzymes is responsible for RNA synthesis? - RNA polymerase Which of the following lack vascular tissue? - Mosses Why are bryophytes considered incompletely liberated from their ancestral aquatic habitat? - Their sperm are flagellated. In ______ the gametophyte is more obvious than the sporophyte. - mosses