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 uptake of glucose inside the cell
B insulin
C tyrosine kinase receptor
Question #2
A tyrosine kinase receptor
B insulin
C uptake of glucose inside the cell
Question #3
A insulin
B tyrosine kinase receptor
C uptake of glucose inside the cell
Question #4
A catalase
B caspases
C rubisco
D ATP synthase
Question #5
A phosphatase
B catalase
C ATP synthase
D caspases
Question #6
A rubisco
B ATP synthase
C phosphatase
D caspases
Question #7
A catalase
B rubisco
C phosphatase
D caspases
Question #8
A ATP synthase
B rubisco
C phosphatase
D catalase
Question #9
A metabolism
B active site
C lactic acid
D Carbon dioxide and alcohol
Question #10
A active site
B lactic acid
C Carbon dioxide and alcohol
D metabolism
Question #11
A lactic acid
B metabolism
C active site
D Carbon dioxide and alcohol
Question #12
A lactic acid
B active site
C Carbon dioxide and alcohol
D metabolism
Question #13
A signal transduction
B aerobic respiration
C photosynthesis
D fermentation
Question #14
A presence/absence of milk protein
B coagulation
C presence/absence of rennin (rennet)
D color of the solution inside the test tubes
Question #15
A A
B B
C C
D D
Question #16
A boiling of living tissues
B enzymes getting denatured
C release of O2 from the reaction
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 in the white edges 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 the green areas in the leaf.
Question #18
A iodine
B alcohol
C acetone & petroleum ether
D water
Question #19
A yellow green chlorophyll b
B purple anthocyanin
C yellow carotene
D grass green chlorophyll a
Question #20
A to prepare the cell for aerobic respiration
B to release energy needed to make ATP
C to convert sugar into starch
D to produce carbon dioxide & alcohol
Question #21
A substrate
B enzyme
C product
D intermediate
Question #22
A All tubes tested with Benedict’s reagent turned orange in color.
B Only the tube with starch by itself turned orange when tested with Benedict’s.
C All tubes tested with iodine remained blue/black in color.
D Only the tube with starch & saliva combined turned orange when tested with Benedict’s.
Question #23
A soaked peas only
B dry peas & beads
C beads only
D soaked peas & beads
Question #24
A Second messenger
B Phosphatase
C Catalase
D Protein kinase
Question #25
A lipid-based such as steroids
B small & polar such as Ca ions
C peptide-based such as insulin
D local regulators
Question #26
A Each of the steps allow for flexible response.
B Each step can be activated by several G proteins simultaneously.
C Multiple steps provide for greater amplification of a signal.
D Multiple steps in a pathway require the least amount of ATP.
Question #27
A reversibility of the binding of signaling molecules to their receptors
B type of receptors the cell uses for communication
C role of cyclic AMP and calcium ions in signal transduction
D presence of enzyme inhibitors
Question #28
A local regulator
B hormone
C relay protein
D receptors
E second messenger
Question #29
A Hormone replaces GTP with ATP in the G protein
B Conformational change in the receptor activates the G protein.
C A relay protein is phosphorylated.
D The target protein is deactivated.
Question #30
A Catalase
B Caspase
C Adenylyl cyclase
D Kinase
Question #31
A glucose
B NADPH
C ATP
D water
Question #32
A H2O and O2
B ATP and NADPH
C ADP and NADP+
D CO2 and glucose
Question #33
A glucose into lactic acid
B light into oxygen gas
C light into chemical energy
D carbon dioxide int oxygen gas
Question #34
A glucose
B carbon dioxide
C oxygen gas
D water
Question #35
A photosynthesis uses green light as a source of energy
B green light is absorbed by the leaves
C photosynthesis must occur in plant leaves
D leaves are colored green under light & dark conditions
Question #36
A fix CO2 into pyruvate in leaf epidermal cells
B fix CO2 into organic acids during the night
C use a different enzyme which outcompetes rubisco for CO2
D fix CO2 in mesophyll cells then export intermediates to the bundle-sheath cells where CO2 is recovered
Question #37
A synthesize ATP from ADP and phosphate
B split water and release oxygen gas
C synthesize sugar from carbon dioxide & water
D harvest light & transfer energy to the reaction-center special chlorophyll a
Question #38
A pyruvate is converted into lactic acid
B intermediates get oxidized by NAD+
C energy is released to produce ATP
D glucose is broken down into 2 three-carbon sugar
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 plasma membrane
B mitochondrion
C chloroplast
D nucleus
E cytoplasm
Question #41
A Krebs cycle
B Calvin cycle
C Glycolysis
D Electron transport chain & chemiosmosis
Question #42
A ATP molecules are produced in photosynthesis and used up in respiration.
B Photosynthesis occurs only in plants and respiration occurs only in animals.
C Respiration runs the biochemical pathways of photosynthesis in reverse.
D Photosynthesis stores energy in complex organic molecules, whereas respiration releases it.
Question #43
A Krebs (Citric acid) cycle
B Glycolysis
C Oxidative phosphorylation
D Electron transport chain
Question #44
A Glucose is synthesized using ADP & phosphate
B The product of glycolysis is further broken down to release more energy.
C Oxygen gas is used to make carbon dioxide.
D Glucose is split into two pyruvates.
Question #45
A glucose and pyruvate
B NAD+ and FAD+
C ATP and citric acid
D H2O and O2
Question #46
A pulling the substrates away from the enzyme
B filling the active sites and thus preventing the normal substrate to bind with the enzyme
C binding to the enzyme and modifying the shape of the enzyme’s active site
D stabilizing the protein subunits of the enzymes
Question #47
A light-dependent reactions (cyclic & noncylcic electron flow) of photosynthesis
B Electron transport chain & chemiosmosis
C light-independent reactions (Calvin cycle) of photosynthesis
D Krebs (Citric acid) cycle
E glycolysis
Question #48
A As a consequence of being alive, organisms convert “useful” energy into dissipated (high entropy) heat.
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 Living organisms decrease entropy in the universe while alive but increase entropy after they die.
Question #49
A 4
B 5
C 3
D 1
E 2
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 D is much smaller than A.
D It is a anabolic.
Question #52
A the shape of its active site has to match the shape of the substrate
B it has to be the same size as the substrate
C its subunit molecules need to match the subunit molecules of the substrate
D its polarity has to be similar to the product’s polarity