Biology question and answers for June 07, 2024
- Q 6 True False A population does not need to be separated for allopatric speciation to occur False True
- Q 5 True False Polyploidy can result in new species being formed True O False
- Q 4 Which of the following does NOT tend to promote speciation O gene flow O the founder effect O natural selection Polyploidy
- Q 3 Which of the following statements about species as defined by the biologica species concept is are correct 1 Biological species are defined by reproductive isolation 2 Biological species are...
- Q 2 Genetic variation O must be present in a population before natural selection can act upon the population O is created by the direct action of natural selection O arises...
- Q 1 Natural selection O can favor beneficial mutations O completely eliminates harmful mutations O creates beneficial mutations O is a random process
- Q have come across today alone back at you Let s investigate more ways transformations can be used in the real world Question 1 O Question Drag each label to the...
- Q The denaturing of proteins occurs when the stabilizing forces are altered Below is the set of processes in which proteins are denatured Classify the following processes according to the denaturing...
- Q c How many moles of H O are required for the reaction of 0 33 mol of Cl H X Incorrect mol H O d How many moles of H...
- Q 22 23 91 20 19 516 18 Anwar A D A oblique section transverse section C sagittal section D frontal section section is Mustrated by the picture of the brain...
- Q Reset Previous Next Put the following steps in the correct order from start to finish to show how CRISPR can be used to treat acne One or more of the...
- Q and Human Development 8 5 50 6 7 8 6 A spiritual leader is visiting with a resident The NA quietly leaves the room and shuts the door 6 Identify...
- Q Select all that apply Ammonium sulfate is used in protein purification because Oproteins have varying solubilities in polar and ionic compounds ammonium sulfate when added to a protein solution causes...
- Q The picture below shows the results of trypsin digestion of a peptide How do we know immediately from the results of the digestion that the C terminus of the original...
- Q Suppose that the peptide Ala Met Lys Ser is reacted with phenylisothiocyanate at pH 8 0 followed by mild acidification which is the first cycle of the Edman method Which...
- Q 02 01 MC How did Wegener s theory of continental drift differ from the current theory of plate tectonics O Wegener s theory did not explain how the continents could...
- Q estion 24 Fructose and galactose both have six carbon atoms twelve hydrogen atoms and six oxygen atoms just like glucose A friend of yours says Since those sugars have the...
- Q A Moving to another question will save this response 2 points Sav A yellow jacket an insect in the order hymenoptera stung me A wasp an insect in hymenoptera stung...
- Q Question 26 Enzymes function to O react with other enzymes to form a product O catalyze chemical reactions O transport molecules and ions across membranes O regulate messages between cells
- Q uestion 30 Sudan IV a dye that binds to nonpolar molecules is used to detect the presence of macromolecules in food Sudan IV would test positive in the presence of...
- Q uestion 29 Egg whites consist primarily of water and the protein albumin When you fry an egg why does the egg white turn from clear to white O The protein...
- Q estion 32 Matthew noticed that his house plants were wilting badly Which cell structure had most likely contracted O cytoplasm O cell wall O plasma membrane O vacuole
- Q uestion 22 2 points Relatively small organic molecules with a central carbon atom which is bonded to a carboxyl group an amino group a carbon containing group and a hydrogen...
- Q Question 27 The DNA sequence capable of pairing with 5 CGATTAGT 3 is O 5 CGATTAGT 3 O 5 GCTAATCA 3 O 3 CGATTAGT 5 O 3 GCTAATCA 5
- Q Question 5 Karl Popper suggested that scientists use imaginative preconception which means that successful scientists O do not keep records of experiments that fail O do not need to do...
- Q uestion 20 Question 2 points Magnesium chloride is a salt formed with ionic bonds between one magnesium ion and two chloride ions Magnesium has two electrons in its outer shell...
- Q Question 18 Which element s isotope is commonly used to determine when biological samples such as fossils were formed O oxygen O hydrogen O carbon O nitrogen O sulfur
- Q estion 16 When atoms gain or lose electrons they become negatively or positively charged These negatively or positively charged atoms are known as O isotopes O ions O isomers O...
- Q Question 14 Atomic nuclei contain protons and O moles O neutrons O isomers O ions
- Q uestion 10 Cell theory is one of the foundations of biology What are the tenants of the cell theory Check all that apply O All organisms are made up of...
- Q estion 7 2 points Save Answe In California a species of salamanders were geographically separated over time The group that lived in southern California relied heavily on large gold blotches...
- Q estion 8 The same basic array of bones is modified to give rise to the wing of a bat and the fin of a porpoise Such anatomical structures are called...
- Q uestion 3 What common life characteristic would cells from a daisy an apple and a dog all have O DNA O tissues O organs O viruses
- Q estion 2 Experiments are carried out to test a hypothesis by changing one variable at a time and including an unchanged variable termed a n O experimental variable O altered...
- Q estion 1 Based on hierarchical levels of biological organization which of these choices represents the broadest level O Endocrine system O3 toed sloths O School of piranhas Amazon Basin O...
- Q d Identify and explain one output of the bottled water production and consumption system that could have a negative effect on the environment
- Q The metabolic pathways of facultative organisms O allow organisms to switch between aerobic and anaerobic energy transformations O can function only in the absence of oxygen O occur only in...
- Q b How much energy in barrels of oil would be required to produce the amount of tap water equivalent to the amount of bottled water consumed in 2007 How many...
- Q During glycolysis aldolase catalyzes the breakdown of fructose 1 6 bisphosphate to produce Ophosphoenolpyruvate dihydroxyacetone phosphate fructose 6 phosphate A and B
- Q Which of the following statements best describes the role of NAD NADH in glycolysis NADH is used to directly create the phosphoanhydride bonds in ATP NAD accepts electrons NADH accepts...
- Q The grass output of ATP from glycolysis is 2 4 2 1 whereas the net output of ATP is
- Q B oxidation O is the second step in the oxidation of glucose is a process used to oxidize fatty acids O is a process used to digest some polysaccharides O...
- Q Each of the following statements about the citric acid cycle is true except oxidation by transfer of electrons to coenzymes occurs at two steps substrate level phosphorylation generates ATP GTP...
- Q Each of the following citric acid cycle enzymes catalyzes electron transfer to NADH FADH2 except x ketoglutarate dehydrogenase succinyl CoA synthetase isocitrate dehydrogenase succinate dehydrogenase
- Q In eukaryotes pyruvate is converted to acetyl CoA in O during passage through the inner mitochondrial membrane during passage through the mitochondrial outer membrane in the mitochondrial matrix in the...
- Q Part 3 Match each diagram with its correct description Diagrams will be used once A B O O O C O O D 1 Pure Element only one type of...
- Q The two most common pathways for fermentation convert pyruvate to lactate or glucose acetyl CoA or lactate acetyl CoA or ethanol lactate or ethanol
- Q In the enzyme experiment which enzyme converted hydrogen peroxide H 02 into oxygen 0 and water H O Lactase Amylase Catalase Protease
- Q In the enzyme experiment to determine the rate of enzymatic activity you could have measured the consumption of what H O2 02 H O
- Q You would expect the digestive enzymes of a tropical fish to have peak efficiency at which temperature At or near freezing Around 25 degrees Celcius 10 15 degrees Celcius
- Q Why did the enzymatic rate of activity increase as the temperature increased from 5 C to 35 C but then decrease as the temperature continued to increase from 35 C...
- Q of the average body temperature of a dog is 39 C at what temperature would you expect canine catalas enzyme to function most optimally 39 C 50 C 30 C
- Q In the temperature experiment which temperature produced the greatest rate of enzymatic activity 60 C 5 C 35 C
- Q If you repeated this experiment with an extreme acidophilic bacteria which of the following pH levels would likely have the highest rate of enzymatic activity pH 1 pH 5 pH...
- Q If you transferred bovine catalase to an organism whose optimal pH is 3 2 would you expect the bovine catalase to work more or less effectively than it did in...
- Q You conduct an experiment to see how color of light affects photosynthesis in spinach According to these data which light is best for promoting photosynthesis in spinach Color of light...
- Q Although they have no back legs whales are born with a pelvic bone Which term best describes the pelvis of a whale C 0 00 0 10 A vestigial structure...
- Q skeletal structures but different uses In comparative anatomy what type of structures are they C 0 00 0 19 Humerus Radius Carpals Metacarpals Phalanges A 2104 HUMAN common B homologous...
- Q Which of the following are produced during thecitric acid cycle ATP and NAD a proton gradient pyruvate ATP and NADH ATP NADH and FADH 2 oxygen
- Q The electron transport chain consists of a series of redox reactions in which electrons are transferred to oxygen as the final electron acceptor true O false
- Q As you see in Figure 10 20 the plasma membrane of the muscle cell AKA the sarcolemma extends into the muscle cell so that the action potential can travel deep...
- Q Calcium ions bind to the regulatory protein actin myosin Otropomyosin tronanin
- Q Turn to The Big Picture of Skeletal Muscle Contraction Figure 10 20 FYI there is also an animation on Mastering A P Put the five stages of skeletal muscle contraction...
- Q With calcium and ATP present contraction can occur The myosin head cocks bind to actin and myosin pulls actin toward the center of the sarcomere This movement of myosin is...
- Q At rest calcium ions are stored in the of the muscle cell Once the action potential is received calcium ions are released into the mitochondria cytoplasm nucleus extracellular space sarcoplasmic...
- Q When the action potential stops the muscle will relax The calcium ions are pumpec back into the O rough endoplasmic reticulum Olysosomes peroxisome sarcoplasmic reticulum
- Q The resting membrane potential or electrical voltage present at the membrane in a resting muscle cell is measured to be 90mV 60mV 45mV Amy 111
- Q How many ATP are required for each turn of the crossbridge cycle zero one two four
- Q Look at Figure 10 14 the Neuromuscular Junction NMJ Where is the NMJ located at the plasma membrane of the muscle cell on either end of the muscle fiber at...
- Q The crossbridge cycle which moves the thick filaments along the thin filaments shortening the sarcomere involves repeatedly binding to the myosin heads bind to troponin the myosin heads bind to...
- Q What is the name for the mechanism that explains how a muscle fiber contracts the filament size theory of contraction the overlapping myofilament theory of contraction the sliding filament theory...
- Q How does neurotransmitter released by the neuron at the NMJ cause a signal at tl motor end plate the neurotransmitter binds to a receptor on the motor end plate the...
- Q Those calcium ions bind to troponin causing tropomyosin to move which exposes the active sites of the contractile protein O actin hemoglobin myoglobin myosin
- Q Sodium ions moving into the cell trigger an action potential on the muscle cell The action potential sweeps across the muscle cell and down the T tubule This then causes...
- Q Match each event with the protein responsible one event is used twice 0000 sodium potassium pump voltage gated sodium channels potassium leak channels voltage gated potassium channels 1 resting membrane...
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