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 tyrosine kinase receptor
C uptake of glucose inside the cell
Question #2
A uptake of glucose inside the cell
B tyrosine kinase receptor
C insulin
Question #3
A tyrosine kinase receptor
B uptake of glucose inside the cell
C insulin
Question #4
A caspases
B catalase
C ATP synthase
D rubisco
Question #5
A ATP synthase
B catalase
C caspases
D phosphatase
Question #6
A caspases
B phosphatase
C rubisco
D ATP synthase
Question #7
A caspases
B catalase
C phosphatase
D rubisco
Question #8
A rubisco
B ATP synthase
C catalase
D phosphatase
Question #9
A lactic acid
B metabolism
C active site
D Carbon dioxide and alcohol
Question #10
A Carbon dioxide and alcohol
B lactic acid
C metabolism
D active site
Question #11
A metabolism
B active site
C Carbon dioxide and alcohol
D lactic acid
Question #12
A lactic acid
B Carbon dioxide and alcohol
C metabolism
D active site
Question #13
A aerobic respiration
B photosynthesis
C fermentation
D signal transduction
Question #14
A coagulation
B color of the solution inside the test tubes
C presence/absence of milk protein
D presence/absence of rennin (rennet)
Question #15
A C
B A
C D
D B
Question #16
A H2O2 evaporating
B enzymes getting denatured
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 The dark purple areas (after iodine was added) were located in what used to be in the white edges in the leaf.
C Coagulation occurred in the center of the leaf.
D Bubbles showed up after soaking the leaf in iodine solution.
Question #18
A water
B iodine
C alcohol
D acetone & petroleum ether
Question #19
A yellow carotene
B grass green chlorophyll a
C purple anthocyanin
D yellow green chlorophyll b
Question #20
A to release energy needed to make ATP
B to prepare the cell for aerobic respiration
C to convert sugar into starch
D to produce carbon dioxide & alcohol
Question #21
A enzyme
B product
C substrate
D intermediate
Question #22
A Only the tube with starch & saliva combined turned orange when tested with Benedict’s.
B All tubes tested with iodine remained blue/black in color.
C All tubes tested with Benedict’s reagent turned orange in color.
D Only the tube with starch by itself turned orange when tested with Benedict’s.
Question #23
A dry peas & beads
B beads only
C soaked peas only
D soaked peas & beads
Question #24
A Catalase
B Protein kinase
C Second messenger
D Phosphatase
Question #25
A local regulators
B small & polar such as Ca ions
C peptide-based such as insulin
D lipid-based such as steroids
Question #26
A Multiple steps provide for greater amplification of a signal.
B Each of the steps allow for flexible response.
C Multiple steps in a pathway require the least amount of ATP.
D Each step can be activated by several G proteins simultaneously.
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 local regulator
C hormone
D second messenger
E relay protein
Question #29
A Conformational change in the receptor activates the G protein.
B Hormone replaces GTP with ATP in the G protein
C A relay protein is phosphorylated.
D The target protein is deactivated.
Question #30
A Kinase
B Adenylyl cyclase
C Catalase
D Caspase
Question #31
A ATP
B water
C NADPH
D glucose
Question #32
A H2O and O2
B CO2 and glucose
C ATP and NADPH
D ADP and NADP+
Question #33
A light into chemical energy
B glucose into lactic acid
C carbon dioxide int oxygen gas
D light into oxygen gas
Question #34
A glucose
B oxygen gas
C carbon dioxide
D water
Question #35
A green light is absorbed by the leaves
B photosynthesis must occur in plant leaves
C leaves are colored green under light & dark conditions
D photosynthesis uses green light as a source of energy
Question #36
A use a different enzyme which outcompetes rubisco for CO2
B fix CO2 into pyruvate in leaf epidermal cells
C fix CO2 into organic acids during the night
D fix CO2 in mesophyll cells then export intermediates to the bundle-sheath cells where CO2 is recovered
Question #37
A harvest light & transfer energy to the reaction-center special chlorophyll a
B split water and release oxygen gas
C synthesize sugar from carbon dioxide & water
D synthesize ATP from ADP and phosphate
Question #38
A energy is released to produce ATP
B glucose is broken down into 2 three-carbon sugar
C pyruvate is converted into lactic acid
D intermediates get oxidized by NAD+
Question #39
A It gets reused & goes through glycolysis a second time.
B It combines with pyruvate to produce a fermentation product
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 plasma membrane
B mitochondrion
C chloroplast
D nucleus
E cytoplasm
Question #41
A Krebs cycle
B Calvin cycle
C Electron transport chain & chemiosmosis
D Glycolysis
Question #42
A Photosynthesis occurs only in plants and respiration occurs only in animals.
B Photosynthesis stores energy in complex organic molecules, whereas respiration releases it.
C ATP molecules are produced in photosynthesis and used up in respiration.
D Respiration runs the biochemical pathways of photosynthesis in reverse.
Question #43
A Oxidative phosphorylation
B Glycolysis
C Krebs (Citric acid) cycle
D Electron transport chain
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 ATP and citric acid
D glucose and pyruvate
Question #46
A pulling the substrates away from the enzyme
B stabilizing the protein subunits of the enzymes
C filling the active sites and thus preventing the normal substrate to bind with the enzyme
D binding to the enzyme and modifying the shape of the enzyme’s active site
Question #47
A light-independent reactions (Calvin cycle) of photosynthesis
B Electron transport chain & chemiosmosis
C light-dependent reactions (cyclic & noncylcic electron flow) of photosynthesis
D glycolysis
E Krebs (Citric acid) cycle
Question #48
A Living organisms decrease entropy in the universe while alive but increase entropy after they die.
B As a consequence of being alive, organisms convert “useful” energy into dissipated (high entropy) heat.
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 1
B 3
C 4
D 2
E 5
Question #50
A ADP & phosphate are covalently bonded to make ATP
B High energy phosphate bond breaks off from ATP
C ATP gets converted to cyclic AMP & pyrophosphate
D Cell respiration enzymes are inhibited
Question #51
A It is a anabolic.
B B & C are intermediates of the pathway.
C A is the initial substrate whereas D is the final product of the pathway.
D D is much smaller than A.
Question #52
A it has to be the same size as the substrate
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 its polarity has to be similar to the product’s polarity