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 insulin
B uptake of glucose inside the cell
C tyrosine kinase receptor
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 caspases
B rubisco
C ATP synthase
D catalase
Question #5
A catalase
B ATP synthase
C caspases
D phosphatase
Question #6
A caspases
B phosphatase
C ATP synthase
D rubisco
Question #7
A catalase
B phosphatase
C caspases
D rubisco
Question #8
A phosphatase
B rubisco
C ATP synthase
D catalase
Question #9
A metabolism
B lactic acid
C active site
D Carbon dioxide and alcohol
Question #10
A Carbon dioxide and alcohol
B metabolism
C lactic acid
D active site
Question #11
A lactic acid
B active site
C Carbon dioxide and alcohol
D metabolism
Question #12
A lactic acid
B active site
C Carbon dioxide and alcohol
D metabolism
Question #13
A fermentation
B photosynthesis
C signal transduction
D aerobic respiration
Question #14
A presence/absence of milk protein
B color of the solution inside the test tubes
C coagulation
D presence/absence of rennin (rennet)
Question #15
A C
B D
C B
D A
Question #16
A boiling of living tissues
B release of O2 from the reaction
C enzymes getting denatured
D H2O2 evaporating
Question #17
A Coagulation occurred in the center of the leaf.
B The dark purple areas (after iodine was added) were located in what used to be the green areas in the leaf.
C Bubbles showed up after soaking the leaf in iodine solution.
D The dark purple areas (after iodine was added) were located in what used to be in the white edges in the leaf.
Question #18
A water
B acetone & petroleum ether
C iodine
D alcohol
Question #19
A grass green chlorophyll a
B purple anthocyanin
C yellow carotene
D yellow green chlorophyll b
Question #20
A to produce carbon dioxide & alcohol
B to convert sugar into starch
C to prepare the cell for aerobic respiration
D to release energy needed to make ATP
Question #21
A intermediate
B substrate
C enzyme
D product
Question #22
A Only the tube with starch by itself turned orange when tested with Benedict’s.
B All tubes tested with iodine remained blue/black in color.
C Only the tube with starch & saliva combined turned orange when tested with Benedict’s.
D All tubes tested with Benedict’s reagent turned orange in color.
Question #23
A soaked peas only
B soaked peas & beads
C dry peas & beads
D beads only
Question #24
A Second messenger
B Catalase
C Protein kinase
D Phosphatase
Question #25
A small & polar such as Ca ions
B peptide-based such as insulin
C lipid-based such as steroids
D local regulators
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 reversibility of the binding of signaling molecules to their receptors
B type of receptors the cell uses for communication
C presence of enzyme inhibitors
D role of cyclic AMP and calcium ions in signal transduction
Question #28
A receptors
B relay protein
C second messenger
D local regulator
E hormone
Question #29
A Hormone replaces GTP with ATP in the G protein
B A relay protein is phosphorylated.
C The target protein is deactivated.
D Conformational change in the receptor activates the G protein.
Question #30
A Adenylyl cyclase
B Kinase
C Caspase
D Catalase
Question #31
A glucose
B ATP
C NADPH
D water
Question #32
A ADP and NADP+
B ATP and NADPH
C H2O and O2
D CO2 and glucose
Question #33
A carbon dioxide int oxygen gas
B glucose into lactic acid
C light into oxygen gas
D light into chemical energy
Question #34
A water
B oxygen gas
C carbon dioxide
D glucose
Question #35
A leaves are colored green under light & dark conditions
B photosynthesis uses green light as a source of energy
C green light is absorbed by the leaves
D photosynthesis must occur in plant leaves
Question #36
A fix CO2 in mesophyll cells then export intermediates to the bundle-sheath cells where CO2 is recovered
B fix CO2 into pyruvate in leaf epidermal cells
C fix CO2 into organic acids during the night
D use a different enzyme which outcompetes rubisco for CO2
Question #37
A synthesize ATP from ADP and phosphate
B harvest light & transfer energy to the reaction-center special chlorophyll a
C split water and release oxygen gas
D synthesize sugar from carbon dioxide & water
Question #38
A intermediates get oxidized by NAD+
B pyruvate is converted into lactic acid
C energy is released to produce ATP
D glucose is broken down into 2 three-carbon sugar
Question #39
A It gets reused & goes through glycolysis a second time.
B It combines with pyruvate to produce a fermentation product
C It enters the mitochondria to combine with oxygen gas
D It is used as a raw material to synthesize fat molecules.
Question #40
A mitochondrion
B nucleus
C cytoplasm
D chloroplast
E plasma membrane
Question #41
A Krebs cycle
B Electron transport chain & chemiosmosis
C Glycolysis
D Calvin 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 stores energy in complex organic molecules, whereas respiration releases it.
D Photosynthesis occurs only in plants and respiration occurs only in animals.
Question #43
A Oxidative phosphorylation
B Glycolysis
C Electron transport chain
D Krebs (Citric acid) cycle
Question #44
A The product of glycolysis is further broken down to release more energy.
B Oxygen gas is used to make carbon dioxide.
C Glucose is split into two pyruvates.
D Glucose is synthesized using ADP & phosphate
Question #45
A H2O and O2
B NAD+ and FAD+
C glucose and pyruvate
D ATP and citric acid
Question #46
A binding to the enzyme and modifying the shape of the enzyme’s active site
B pulling the substrates away from the enzyme
C stabilizing the protein subunits of the enzymes
D filling the active sites and thus preventing the normal substrate to bind with the enzyme
Question #47
A Electron transport chain & chemiosmosis
B glycolysis
C light-dependent reactions (cyclic & noncylcic electron flow) of photosynthesis
D Krebs (Citric acid) cycle
E light-independent reactions (Calvin cycle) of photosynthesis
Question #48
A Living organisms decrease entropy in the universe while alive but increase entropy after they die.
B Life obeys the second law of thermodynamics but not the first law of conservation of energy.
C Living organisms do not actually obey the law of entropy.
D As a consequence of being alive, organisms convert “useful” energy into dissipated (high entropy) heat.
Question #49
A 1
B 4
C 5
D 3
E 2
Question #50
A ATP gets converted to cyclic AMP & pyrophosphate
B Cell respiration enzymes are inhibited
C ADP & phosphate are covalently bonded to make ATP
D High energy phosphate bond breaks off from ATP
Question #51
A A is the initial substrate whereas D is the final product of the pathway.
B D is much smaller than A.
C It is a anabolic.
D B & C are intermediates of the pathway.
Question #52
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 its subunit molecules need to match the subunit molecules of the substrate
D it has to be the same size as the substrate