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 uptake of glucose inside the cell
C insulin
Question #4
A ATP synthase
B rubisco
C caspases
D catalase
Question #5
A phosphatase
B ATP synthase
C caspases
D catalase
Question #6
A rubisco
B phosphatase
C ATP synthase
D caspases
Question #7
A rubisco
B catalase
C caspases
D phosphatase
Question #8
A ATP synthase
B phosphatase
C catalase
D rubisco
Question #9
A metabolism
B Carbon dioxide and alcohol
C lactic acid
D active site
Question #10
A Carbon dioxide and alcohol
B active site
C lactic acid
D metabolism
Question #11
A Carbon dioxide and alcohol
B active site
C lactic acid
D metabolism
Question #12
A lactic acid
B Carbon dioxide and alcohol
C active site
D metabolism
Question #13
A fermentation
B signal transduction
C photosynthesis
D aerobic respiration
Question #14
A color of the solution inside the test tubes
B coagulation
C presence/absence of rennin (rennet)
D presence/absence of milk protein
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 H2O2 evaporating
D enzymes getting denatured
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 alcohol
B iodine
C water
D acetone & petroleum ether
Question #19
A yellow green chlorophyll b
B yellow carotene
C grass green chlorophyll a
D purple anthocyanin
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 substrate
C product
D intermediate
Question #22
A Only the tube with starch by itself turned orange when tested with Benedict’s.
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 All tubes tested with iodine remained blue/black in color.
Question #23
A soaked peas & beads
B beads only
C soaked peas only
D dry peas & beads
Question #24
A Second messenger
B Catalase
C Phosphatase
D Protein kinase
Question #25
A local regulators
B lipid-based such as steroids
C small & polar such as Ca ions
D peptide-based such as insulin
Question #26
A Each of the steps allow for flexible response.
B Multiple steps provide for greater amplification of a signal.
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 role of cyclic AMP and calcium ions in signal transduction
B reversibility of the binding of signaling molecules to their receptors
C presence of enzyme inhibitors
D type of receptors the cell uses for communication
Question #28
A hormone
B second messenger
C relay protein
D local regulator
E receptors
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 Catalase
C Caspase
D Adenylyl cyclase
Question #31
A water
B ATP
C glucose
D NADPH
Question #32
A ATP and NADPH
B ADP and NADP+
C H2O and O2
D CO2 and glucose
Question #33
A light into oxygen gas
B light into chemical energy
C glucose into lactic acid
D carbon dioxide int oxygen gas
Question #34
A oxygen gas
B glucose
C water
D carbon dioxide
Question #35
A photosynthesis uses green light as a source of energy
B leaves are colored green under light & dark conditions
C photosynthesis must occur in plant leaves
D green light is absorbed by the leaves
Question #36
A fix CO2 into organic acids during the night
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 pyruvate in leaf epidermal cells
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 intermediates get oxidized by NAD+
C pyruvate is converted into lactic acid
D glucose is broken down into 2 three-carbon sugar
Question #39
A It combines with pyruvate to produce a fermentation product
B It enters the mitochondria to combine with oxygen gas
C It is used as a raw material to synthesize fat molecules.
D It gets reused & goes through glycolysis a second time.
Question #40
A mitochondrion
B plasma membrane
C chloroplast
D cytoplasm
E nucleus
Question #41
A Electron transport chain & chemiosmosis
B Calvin cycle
C Glycolysis
D Krebs cycle
Question #42
A ATP molecules are produced in photosynthesis and used up in respiration.
B Photosynthesis stores energy in complex organic molecules, whereas respiration releases it.
C Photosynthesis occurs only in plants and respiration occurs only in animals.
D Respiration runs the biochemical pathways of photosynthesis in reverse.
Question #43
A Electron transport chain
B Krebs (Citric acid) cycle
C Glycolysis
D Oxidative phosphorylation
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 ATP and citric acid
B glucose and pyruvate
C H2O and O2
D NAD+ and FAD+
Question #46
A filling the active sites and thus preventing the normal substrate to bind with the enzyme
B binding to the enzyme and modifying the shape of the enzyme’s active site
C pulling the substrates away from 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 Living organisms do not actually obey the law of entropy.
B Life obeys the second law of thermodynamics but not the first law of conservation of energy.
C Living organisms decrease entropy in the universe while alive but increase entropy after they die.
D As a consequence of being alive, organisms convert “useful” energy into dissipated (high entropy) heat.
Question #49
A 1
B 4
C 2
D 5
E 3
Question #50
A Cell respiration enzymes are inhibited
B ADP & phosphate are covalently bonded to make ATP
C High energy phosphate bond breaks off from ATP
D ATP gets converted to cyclic AMP & pyrophosphate
Question #51
A B & C are intermediates of the pathway.
B It is a anabolic.
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 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 its subunit molecules need to match the subunit molecules of the substrate
D it has to be the same size as the substrate