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 insulin
B tyrosine kinase receptor
C uptake of glucose inside the cell
Question #3
A uptake of glucose inside the cell
B insulin
C tyrosine kinase receptor
Question #4
A rubisco
B caspases
C catalase
D ATP synthase
Question #5
A catalase
B caspases
C phosphatase
D ATP synthase
Question #6
A phosphatase
B caspases
C ATP synthase
D rubisco
Question #7
A phosphatase
B catalase
C rubisco
D caspases
Question #8
A rubisco
B ATP synthase
C catalase
D phosphatase
Question #9
A Carbon dioxide and alcohol
B metabolism
C lactic acid
D active site
Question #10
A metabolism
B lactic acid
C Carbon dioxide and alcohol
D active site
Question #11
A active site
B lactic acid
C metabolism
D Carbon dioxide and alcohol
Question #12
A Carbon dioxide and alcohol
B active site
C metabolism
D lactic acid
Question #13
A photosynthesis
B fermentation
C aerobic respiration
D signal transduction
Question #14
A color of the solution inside the test tubes
B presence/absence of rennin (rennet)
C presence/absence of milk protein
D coagulation
Question #15
A A
B B
C C
D D
Question #16
A enzymes getting denatured
B release of O2 from the reaction
C H2O2 evaporating
D boiling of living tissues
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 Coagulation occurred in the center of the leaf.
D The dark purple areas (after iodine was added) were located in what used to be the green areas in the leaf.
Question #18
A acetone & petroleum ether
B water
C iodine
D alcohol
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 produce carbon dioxide & alcohol
C to convert sugar into starch
D to prepare the cell for aerobic respiration
Question #21
A intermediate
B substrate
C product
D enzyme
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 All tubes tested with iodine remained blue/black in color.
D Only the tube with starch by itself turned orange when tested with Benedict’s.
Question #23
A soaked peas & beads
B beads only
C soaked peas only
D dry peas & beads
Question #24
A Protein kinase
B Catalase
C Phosphatase
D Second messenger
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 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 presence of enzyme inhibitors
C role of cyclic AMP and calcium ions in signal transduction
D type of receptors the cell uses for communication
Question #28
A relay protein
B hormone
C receptors
D second messenger
E local regulator
Question #29
A The target protein is deactivated.
B A relay protein is phosphorylated.
C Hormone replaces GTP with ATP in the G protein
D Conformational change in the receptor activates the G protein.
Question #30
A Caspase
B Adenylyl cyclase
C Kinase
D Catalase
Question #31
A NADPH
B water
C glucose
D ATP
Question #32
A CO2 and glucose
B ATP and NADPH
C H2O and O2
D ADP and NADP+
Question #33
A light into chemical energy
B glucose into lactic acid
C light into oxygen gas
D carbon dioxide int oxygen gas
Question #34
A oxygen gas
B carbon dioxide
C water
D glucose
Question #35
A green light is absorbed by the leaves
B leaves are colored green under light & dark conditions
C photosynthesis uses green light as a source of energy
D photosynthesis must occur in plant leaves
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 split water and release oxygen gas
B harvest light & transfer energy to the reaction-center special chlorophyll a
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 intermediates get oxidized by NAD+
D pyruvate is converted into lactic acid
Question #39
A It is used as a raw material to synthesize fat molecules.
B It enters the mitochondria to combine with oxygen gas
C It combines with pyruvate to produce a fermentation product
D It gets reused & goes through glycolysis a second time.
Question #40
A nucleus
B mitochondrion
C chloroplast
D cytoplasm
E plasma membrane
Question #41
A Calvin cycle
B Glycolysis
C Electron transport chain & chemiosmosis
D Krebs cycle
Question #42
A Photosynthesis stores energy in complex organic molecules, whereas respiration releases it.
B Photosynthesis occurs only in plants and respiration occurs only in animals.
C Respiration runs the biochemical pathways of photosynthesis in reverse.
D ATP molecules are produced in photosynthesis and used up in respiration.
Question #43
A Electron transport chain
B Krebs (Citric acid) cycle
C Oxidative phosphorylation
D Glycolysis
Question #44
A The product of glycolysis is further broken down to release more energy.
B Glucose is synthesized using ADP & phosphate
C Oxygen gas is used to make carbon dioxide.
D Glucose is split into two pyruvates.
Question #45
A NAD+ and FAD+
B glucose and pyruvate
C H2O and O2
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 filling the active sites and thus preventing the normal substrate to bind with the enzyme
D stabilizing the protein subunits of the enzymes
Question #47
A glycolysis
B Krebs (Citric acid) cycle
C light-independent reactions (Calvin cycle) of photosynthesis
D light-dependent reactions (cyclic & noncylcic electron flow) of photosynthesis
E Electron transport chain & chemiosmosis
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 Living organisms do not actually obey the law of entropy.
D Life obeys the second law of thermodynamics but not the first law of conservation of energy.
Question #49
A 2
B 5
C 1
D 4
E 3
Question #50
A ADP & phosphate are covalently bonded to make ATP
B High energy phosphate bond breaks off from ATP
C Cell respiration enzymes are inhibited
D ATP gets converted to cyclic AMP & pyrophosphate
Question #51
A B & C are intermediates of the pathway.
B A is the initial substrate whereas D is the final product of the pathway.
C It is a anabolic.
D D is much smaller than A.
Question #52
A its subunit molecules need to match the subunit molecules of the substrate
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
D its polarity has to be similar to the product’s polarity