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