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 uptake of glucose inside the cell
B insulin
C tyrosine kinase receptor
Question #3
A tyrosine kinase receptor
B insulin
C uptake of glucose inside the cell
Question #4
A rubisco
B ATP synthase
C caspases
D catalase
Question #5
A ATP synthase
B catalase
C phosphatase
D caspases
Question #6
A phosphatase
B ATP synthase
C rubisco
D caspases
Question #7
A phosphatase
B caspases
C rubisco
D catalase
Question #8
A ATP synthase
B catalase
C phosphatase
D rubisco
Question #9
A active site
B Carbon dioxide and alcohol
C lactic acid
D metabolism
Question #10
A lactic acid
B metabolism
C Carbon dioxide and alcohol
D active site
Question #11
A Carbon dioxide and alcohol
B lactic acid
C active site
D metabolism
Question #12
A metabolism
B active site
C lactic acid
D Carbon dioxide and alcohol
Question #13
A fermentation
B aerobic respiration
C photosynthesis
D signal transduction
Question #14
A coagulation
B presence/absence of milk protein
C presence/absence of rennin (rennet)
D color of the solution inside the test tubes
Question #15
A D
B A
C C
D B
Question #16
A H2O2 evaporating
B release of O2 from the reaction
C enzymes getting denatured
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 Coagulation occurred in the center of the leaf.
C The dark purple areas (after iodine was added) were located in what used to be the green areas in the leaf.
D Bubbles showed up after soaking the leaf in iodine solution.
Question #18
A acetone & petroleum ether
B iodine
C water
D alcohol
Question #19
A yellow green chlorophyll b
B purple anthocyanin
C grass green chlorophyll a
D yellow carotene
Question #20
A to prepare the cell for aerobic respiration
B to release energy needed to make ATP
C to produce carbon dioxide & alcohol
D to convert sugar into starch
Question #21
A intermediate
B enzyme
C substrate
D product
Question #22
A All tubes tested with iodine remained blue/black in color.
B Only the tube with starch by itself turned orange when tested with Benedict’s.
C Only the tube with starch & saliva combined turned orange when tested with Benedict’s.
D All tubes tested with Benedict’s reagent turned orange in color.
Question #23
A dry peas & beads
B soaked peas & beads
C soaked peas only
D beads only
Question #24
A Second messenger
B Catalase
C Phosphatase
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 Multiple steps provide for greater amplification of a signal.
B Each step can be activated by several G proteins simultaneously.
C Multiple steps in a pathway require the least amount of ATP.
D Each of the steps allow for flexible response.
Question #27
A reversibility of the binding of signaling molecules to their receptors
B role of cyclic AMP and calcium ions in signal transduction
C type of receptors the cell uses for communication
D presence of enzyme inhibitors
Question #28
A relay protein
B receptors
C second messenger
D local regulator
E hormone
Question #29
A The target protein is deactivated.
B Hormone replaces GTP with ATP in the G protein
C Conformational change in the receptor activates the G protein.
D A relay protein is phosphorylated.
Question #30
A Kinase
B Adenylyl cyclase
C Caspase
D Catalase
Question #31
A NADPH
B water
C ATP
D glucose
Question #32
A CO2 and glucose
B H2O and O2
C ADP and NADP+
D ATP and NADPH
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 oxygen gas
B glucose
C water
D carbon dioxide
Question #35
A photosynthesis must occur in plant leaves
B photosynthesis uses green light as a source of energy
C green light is absorbed by the 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 harvest light & transfer energy to the reaction-center special chlorophyll a
B synthesize ATP from ADP and phosphate
C split water and release oxygen gas
D synthesize sugar from carbon dioxide & water
Question #38
A pyruvate is converted into lactic acid
B energy is released to produce ATP
C glucose is broken down into 2 three-carbon sugar
D intermediates get oxidized by NAD+
Question #39
A It enters the mitochondria to combine with oxygen gas
B It gets reused & goes through glycolysis a second time.
C It is used as a raw material to synthesize fat molecules.
D It combines with pyruvate to produce a fermentation product
Question #40
A mitochondrion
B cytoplasm
C nucleus
D chloroplast
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 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 Oxidative phosphorylation
B Electron transport chain
C Krebs (Citric acid) cycle
D Glycolysis
Question #44
A Oxygen gas is used to make carbon dioxide.
B The product of glycolysis is further broken down to release more energy.
C Glucose is synthesized using ADP & phosphate
D Glucose is split into two pyruvates.
Question #45
A glucose and pyruvate
B ATP and citric acid
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 stabilizing the protein subunits of the enzymes
D pulling the substrates away from the enzyme
Question #47
A Electron transport chain & chemiosmosis
B Krebs (Citric acid) cycle
C glycolysis
D light-dependent reactions (cyclic & noncylcic electron flow) of photosynthesis
E light-independent reactions (Calvin cycle) of photosynthesis
Question #48
A Life obeys the second law of thermodynamics but not the first law of conservation of energy.
B Living organisms do not actually obey the law of entropy.
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 2
C 3
D 4
E 5
Question #50
A ATP gets converted to cyclic AMP & pyrophosphate
B ADP & phosphate are covalently bonded to make ATP
C Cell respiration enzymes are inhibited
D High energy phosphate bond breaks off from ATP
Question #51
A It is a anabolic.
B D is much smaller than A.
C A is the initial substrate whereas D is the final product of the pathway.
D B & C are intermediates of the pathway.
Question #52
A its subunit molecules need to match the subunit molecules of the substrate
B it has to be the same size as the substrate
C its polarity has to be similar to the product’s polarity
D the shape of its active site has to match the shape of the substrate