Navigation » List of Schools » Los Angeles Trade Technical College » Biology » Biology 6 – General Biology I » Fall 2021 » Exam 2
Below are the questions for the exam with the choices of answers:
Question #1
A Can cure any disease
B Consists mainly of vitamins. minerals and enzymes
C Causes an imbalance in your body’s organ systems
D Provides proper nutrients and energy for your body
Question #2
A Cells using glucose from food and oxygen from breathing
B Photosynthesis using the food you eat to produce energy
C Energy from food diffusing into each organ of the body
D Lungs producing energy by inhaling oxygen and exhaling carbon dioxide
Question #3
A Mitochondria
B Lysosomes
C Chloroplasts
D Ribosomes
Question #4
A Fat used for protection
B Protein used to increase muscle size
C Atom used to make oxygen
D Carbohydrate used as energy source
Question #5
A second messengers
B “pouch-shaped” region on the surface of an enzyme where subtrates dock and eventually get converted into products
C collection of pigments in the thylakoid membrane
Question #6
A second messengers
B binds to the matching receptor to initiate cell communication
C mobile carriers of high energy electrons
Question #7
A “pouch-shaped” region on the surface of an enzyme where subtrates dock and eventually get converted into products
B collection of pigments in the thylakoid membrane
C second messengers
Question #8
A “pouch-shaped” region on the surface of an enzyme where subtrates dock and eventually get converted into products
B mobile carriers of high energy electrons
C binds to the matching receptor to initiate cell communication
Question #9
A binds to the matching receptor to initiate cell communication
B collection of pigments in the thylakoid membrane
C “pouch-shaped” region on the surface of an enzyme where subtrates dock and eventually get converted into products
Question #10
A transfers high energy phosphate into a molecule
B responsible for genetically programmed & cell-regulated suicide
C carbon fixation initiating the Calvin cycle
Question #11
A carbon fixation initiating the Calvin cycle
B responsible for genetically programmed & cell-regulated suicide
C to release energy needed to make ATP
Question #12
A responsible for genetically programmed & cell-regulated suicide
B transfers high energy phosphate into a molecule
C breaks down hydrogen peroxide into water & oxygen gas
Question #13
A transfers high energy phosphate into a molecule
B breaks down hydrogen peroxide into water & oxygen gas
Question #14
A covalently bonds inorganic phosphate to ADP from energy released when H+ diffuses back into mitochondrial matrix
B transfers high energy phosphate into a molecule
C responsible for genetically programmed & cell-regulated suicide
Question #15
A to convert sugar into starch
B to prepare the cell for aerobic respiration
C to release energy needed to make ATP
D to produce carbon dioxide & alcohol
Question #16
A enzymes getting denatured
B H2O2 evaporating
C boiling of living tissues
D release of O2 from the reaction
Question #17
A The dark purple areas (after iodine was added) were located in what used to be the green areas in the leaf.
B Bubbles showed up after soaking the leaf in iodine solution.
C The dark purple areas (after iodine was added) were located in what used to be in the white edges in the leaf.
D Coagulation occurred in the center of the leaf.
Question #18
A photosynthesis
B signal transduction
C fermentation
D aerobic respiration
Question #19
A an intermediate of the pathway.
B the substrate that was broken down.
C an enzyme needed to make ATP.
D final product of the reaction.
Question #21
A consumed during photosynthesis
B released during photosynthesis
C consumed during respiration
D released during respiration
Question #22
A Only the tube with starch by itself turned orange when tested with Benedict’s.
B All tubes tested with Benedict’s reagent turned orange in color.
C Only the tube with starch & saliva combined turned orange when tested with Benedict’s.
D All tubes tested with iodine remained blue/black in color.
Question #23
A amount of O2 consumed
B amount of CO2 released
C decrease in mass of peas
D amount of ATP produced
Question #24
A Photosynthesis & Respiration
B Photosynthesis only
C Respiration only
D Fermentation only
Question #25
A alcohol
B iodine
C acetone & petroleum ether
D water
Question #26
A color of the solution inside the test tubes
B presence/absence of rennin (rennet)
C coagulation
D presence/absence of milk protein
Question #27
A yellow carotene
B grass green chlorophyll a
C yellow green chlorophyll b
D purple anthocyanin
Question #28
A soaked peas only
B beads only
C soaked peas & beads
D dry peas & beads
Question #29
A boiling activates enzymes in living tissues.
B there are no enzymes in living tissues.
C enzymes destroy living tissues.
D boiling denatures (destroys) enzymes in boiled tissues.
Question #30
A Second messenger
B Binds to the receptor of a cell in close proximity to the cell that released it
C Signal molecule between cells that far apart in the body
D Relay protein
Question #31
A cAMP is formed
B response protein is activated
C ion channel receptor opens up
Question #32
A relay protein
B local regulator
C receptors
D second messenger
Question #33
A Multiple steps (cascade) provide for greater amplification of a signal.
B Each step in the cascade synthesizes ATP.
C Relay proteins are activated simultaneously.
Question #34
A FALSE
B TRUE
Question #35
A reversibility of the process; signal molecule has to separate from the receptor after binding with it
B presence of enzyme inhibitors
C role of cyclic AMP and calcium ions in signal transduction
Question #36
A Hormone replaces GTP with ATP in the G protein
B A protein kinase is phosphorylated.
C Conformational change in the receptor activates the G protein.
Question #37
A lipid-based such as steroids
B local regulators
C small & polar such as Ca ions
D peptide-based such as insulin
Question #38
A thylakoid membrane inside the chloroplast
B stroma of the chloroplast
C cell’s cytoplasm
D mitochondrioal matrix
Question #39
A glucose
B water
C carbon dioxide
D NADPH
Question #40
A green light is absorbed by the leaves
B photosynthesis uses green light as a source of energy
C photosynthesis must occur in plant leaves
Question #41
A oxygen gas
B carbon dioxide
C glucose
D water
Question #42
A fix CO2 into organic acids during the night
B use a different enzyme to fix CO2
C store water at night
D enhance photorespiration
Question #43
A to make energy-rich fuel molecules
B to make ATP that the rest of the cell may use
C to breakdown sugar for energy
D to provide oxygen gas that humans can consume
Question #44
A light into chemical energy
B light into oxygen gas
C carbon dioxide int oxygen gas
D glucose into lactic acid
Question #45
A CO2 and glucose
B H2O and O2
C ATP and NADPH
D ADP and NADP+
Question #46
A It gets reused & goes through glycolysis a second time.
B It enters the mitochondria to combine with oxygen gas
C It combines with pyruvate to produce lactic acid
Question #47
A Krebs cycle
B Glycolysis
C Calvin cycle
D Electron transport chain & chemiosmosis
Question #48
A to release carbon dioxide
B to use up oxygen gas
C for energy
D to create energy-rich products
Question #49
A pyruvate is converted into lactic acid
B energy is released to produce ATP
C glucose is broken down into 2 three-carbon sugar
D intermediates get oxidized by NAD+
Question #50
A chloroplast
B cytoplasm
C plasma membrane
D mitochondrion
Question #51
A Oxidative phosphorylation in the electron transport chain
B Glycolysis
C Krebs (Citric acid) cycle
Question #52
A Glucose is split into two pyruvates.
B The product of glycolysis is further broken down to release more energy.
C Glucose is synthesized using ADP & phosphate
D Oxygen gas is used to make carbon dioxide.
Question #53
A carbon dioxide & water
B anti-oxidants & inorganic salts
C cytoplasmic enzymes & mitochondria
D energy-rich organic compounds & oxygen gas
Question #54
A Respiration runs the biochemical pathways of photosynthesis in reverse.
B Photosynthesis occurs only in plants and respiration occurs only in animals.
C Photosynthesis stores energy in sugars, whereas respiration releases it.
Question #55
A NAD+ and FAD+
B ATP and citric acid
C H2O and O2
D glucose and pyruvate
Question #56
A ATP gets converted to cyclic AMP & pyrophosphate.
B cell respiration enzymes are inhibited.
C high energy phosphate bond breaks off from ATP.
D ADP & phosphate are covalently bonded.
Question #57
A light-independent reactions (Calvin cycle) of photosynthesis
B glycolysis
C Electron transport chain & chemiosmosis
D light-dependent reactions (cyclic & noncylcic electron flow) of photosynthesis
E Krebs (Citric acid) cycle
Question #58
A occupying the active sites & preventing the substrate to bind with it
B binding to the enzyme and modifying the shape of the enzyme’s active site
C pulling the substrates away from the enzyme
Question #59
A warm moist environment
B boiled
C pH =1
D inside the freezer
E high concentration of its inhibitor
Question #60
A detoxify toxins
B digest food
C release energy from “fuel” molecules
D synthesize large macromolecules
Question #61
A 4
B 1
C 3
D 2
Question #62
A A is the initial substrate & D is the final product.
B B & C are intermediates.
C D is much smaller than A.
Question #63
A its polarity has to be similar to the product’s polarity
B the shape of its active site has to match the shape of the substrate
C it has to be the same size as the substrate
Question #64
A To live, organisms convert “useful” energy into dissipated heat.
B Life contradicts the law of entropy.
C Life obeys the law of entropy but not the law of conservation of energy.