Navigation » List of Schools » Los Angeles Trade Technical College » Biology » Biology 6 – General Biology I » Spring 2021 » Exam 2
Below are the questions for the exam with the choices of answers:
Question #1
A tyrosine kinase receptor
B insulin
C uptake of glucose inside the cell
Question #2
A insulin
B uptake of glucose inside the cell
C tyrosine kinase receptor
Question #3
A tyrosine kinase receptor
B insulin
C uptake of glucose inside the cell
Question #4
A ATP synthase
B catalase
C rubisco
D caspases
Question #5
A ATP synthase
B catalase
C caspases
D phosphatase
Question #6
A caspases
B ATP synthase
C phosphatase
D rubisco
Question #7
A phosphatase
B catalase
C rubisco
D caspases
Question #8
A catalase
B phosphatase
C ATP synthase
D rubisco
Question #9
A metabolism
B lactic acid
C Carbon dioxide and alcohol
D active site
Question #10
A active site
B lactic acid
C Carbon dioxide and alcohol
D metabolism
Question #11
A lactic acid
B Carbon dioxide and alcohol
C metabolism
D active site
Question #12
A lactic acid
B Carbon dioxide and alcohol
C active site
D metabolism
Question #13
A aerobic respiration
B fermentation
C photosynthesis
D signal transduction
Question #14
A presence/absence of milk protein
B presence/absence of rennin (rennet)
C coagulation
D color of the solution inside the test tubes
Question #15
A A
B D
C B
D C
Question #16
A H2O2 evaporating
B boiling of living tissues
C enzymes getting denatured
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 in the white edges 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 the green areas in the leaf.
D Coagulation occurred in the center of the leaf.
Question #18
A iodine
B water
C acetone & petroleum ether
D alcohol
Question #19
A grass green chlorophyll a
B yellow carotene
C yellow green chlorophyll b
D purple anthocyanin
Question #20
A to prepare the cell for aerobic respiration
B to convert sugar into starch
C to produce carbon dioxide & alcohol
D to release energy needed to make ATP
Question #21
A enzyme
B substrate
C product
D intermediate
Question #22
A All tubes tested with iodine remained blue/black in color.
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 Only the tube with starch by itself turned orange when tested with Benedict’s.
Question #23
A dry peas & beads
B soaked peas & beads
C beads only
D soaked peas only
Question #24
A Protein kinase
B Catalase
C Second messenger
D Phosphatase
Question #25
A local regulators
B small & polar such as Ca ions
C lipid-based such as steroids
D peptide-based such as insulin
Question #26
A Each step can be activated by several G proteins simultaneously.
B Each of the steps allow for flexible response.
C Multiple steps in a pathway require the least amount of ATP.
D Multiple steps provide for greater amplification of a signal.
Question #27
A role of cyclic AMP and calcium ions in signal transduction
B type of receptors the cell uses for communication
C presence of enzyme inhibitors
D reversibility of the binding of signaling molecules to their receptors
Question #28
A hormone
B relay protein
C receptors
D second messenger
E local regulator
Question #29
A A relay protein is phosphorylated.
B Conformational change in the receptor activates the G protein.
C Hormone replaces GTP with ATP in the G protein
D The target protein is deactivated.
Question #30
A Caspase
B Catalase
C Adenylyl cyclase
D Kinase
Question #31
A glucose
B NADPH
C ATP
D water
Question #32
A ADP and NADP+
B ATP and NADPH
C CO2 and glucose
D H2O and O2
Question #33
A glucose into lactic acid
B carbon dioxide int oxygen gas
C light into chemical energy
D light into oxygen gas
Question #34
A glucose
B water
C carbon dioxide
D oxygen gas
Question #35
A photosynthesis uses green light as a source of energy
B photosynthesis must occur in plant leaves
C leaves are colored green under light & dark conditions
D green light is absorbed by the leaves
Question #36
A fix CO2 into pyruvate in leaf epidermal cells
B use a different enzyme which outcompetes rubisco for CO2
C fix CO2 in mesophyll cells then export intermediates to the bundle-sheath cells where CO2 is recovered
D fix CO2 into organic acids during the night
Question #37
A split water and release oxygen gas
B synthesize ATP from ADP and phosphate
C harvest light & transfer energy to the reaction-center special chlorophyll a
D synthesize sugar from carbon dioxide & water
Question #38
A pyruvate is converted into lactic acid
B intermediates get oxidized by NAD+
C energy is released to produce ATP
D glucose is broken down into 2 three-carbon sugar
Question #39
A It is used as a raw material to synthesize fat molecules.
B It gets reused & goes through glycolysis a second time.
C It enters the mitochondria to combine with oxygen gas
D It combines with pyruvate to produce a fermentation product
Question #40
A plasma membrane
B nucleus
C chloroplast
D cytoplasm
E mitochondrion
Question #41
A Calvin cycle
B Electron transport chain & chemiosmosis
C Glycolysis
D Krebs cycle
Question #42
A Respiration runs the biochemical pathways of photosynthesis in reverse.
B ATP molecules are produced in photosynthesis and used up in respiration.
C Photosynthesis occurs only in plants and respiration occurs only in animals.
D Photosynthesis stores energy in complex organic molecules, whereas respiration releases it.
Question #43
A Oxidative phosphorylation
B Electron transport chain
C Krebs (Citric acid) cycle
D Glycolysis
Question #44
A Glucose is synthesized using ADP & phosphate
B Oxygen gas is used to make carbon dioxide.
C The product of glycolysis is further broken down to release more energy.
D Glucose is split into two pyruvates.
Question #45
A glucose and pyruvate
B H2O and O2
C ATP and citric acid
D NAD+ and FAD+
Question #46
A pulling the substrates away from the enzyme
B stabilizing the protein subunits of the enzymes
C binding to the enzyme and modifying the shape of the enzyme’s active site
D filling the active sites and thus preventing the normal substrate to bind with the enzyme
Question #47
A light-independent reactions (Calvin cycle) of photosynthesis
B light-dependent reactions (cyclic & noncylcic electron flow) of photosynthesis
C Krebs (Citric acid) cycle
D Electron transport chain & chemiosmosis
E glycolysis
Question #48
A Life obeys the second law of thermodynamics but not the first law of conservation of energy.
B As a consequence of being alive, organisms convert “useful” energy into dissipated (high entropy) heat.
C Living organisms decrease entropy in the universe while alive but increase entropy after they die.
D Living organisms do not actually obey the law of entropy.
Question #49
A 2
B 5
C 1
D 4
E 3
Question #50
A High energy phosphate bond breaks off from ATP
B ADP & phosphate are covalently bonded to make ATP
C Cell respiration enzymes are inhibited
D ATP gets converted to cyclic AMP & pyrophosphate
Question #51
A It is a anabolic.
B B & C are intermediates of the pathway.
C D is much smaller than A.
D A is the initial substrate whereas D is the final product of the pathway.
Question #52
A its polarity has to be similar to the product’s polarity
B its subunit molecules need to match the subunit molecules of the substrate
C the shape of its active site has to match the shape of the substrate
D it has to be the same size as the substrate