Biology question and answers for December 15, 2023
- Q In both chlorophyll (a) and chlorophyll (b), the co-factor metal ions in the porphyrin rings are:1. Iron (III) and Magnesium (II)2. Iron (II) and Iron (III).3. Magnesium (II) and Magnesium...
- Q What is the purpose of photosynthesis? To oxidize glucose and transfer the storedchemical energy into ATP for the cells toTo create ATP using energy from the sun to power the...
- Q Scientists were studying a new mutant version of sugarcane (a C4 plant) that has a non-functioning PEP carboxylase enzyme. Describe some problems that this plant might encounter on hot, sunny...
- Q Follow the path of an electron from a molecule of water to the sugar G3P.water - PSII - ETC - PSI - NADPH - G3Pwater - PSII ETC PSI NADPH...
- Q What increases the amount of H+ (protons) in the thylakoid lumen? (select all that apply)sunlightsplitting of watertransport via the cytochrome complexproduction of ATPthe influx of CO2
- Q Which statement about the Calvin-Benson cycle is incorrect?Rubisco catalyzes the reaction between CO2 and RuBPFor each turn of the Calvin-Benson cycle, only 2 molecules of G3P go on tomake glucose6...
- Q In the chloroplastLight leads to the pumping of protons out of the thylakoid space into the stromaLight causes the stroma to become more acidic than the thylakoidsATP forms when protons...
- Q What do thylakoid membrane and inner mitochondrial membrane have in common?photosystem IItwo choices are correctATP synthase3 proton pumps that move H* against their concentration gradient
- Q Which 2 environmental variables may affect this floating leaf disk experiment?temperature of room; amount of bicarbonate in the syringes.amount of bicarbonate in the syringes; age of leaftemperature of room; amount...
- Q The negative control in the graph isthe white light line showing the most activitythe red and blue light lines showing chlorophyll a and b activitythe green light line showing no...
- Q In the 1660s, Flemish physician Jan van Helmont grew a small willow tree in a pot of soil. He added only water to the pot. At the end of five...
- Q You have recently been hired as the new Hydrology Professor at Elk Neck State College. You are the Lead Hydrologist. Your job is to create an informational flyer/poster/etcetera on the...
- Q While screening the effects of various compounds on plant cells, you identify a molecule that severelyreduces ATP production during photosynthesis, but has no effect on the reduction of NADP+ to...
- Q Explain why pheophytins are likely show up on chromatograms of frozen spinach, but rarely in a paper chromatogram of fresh spinach, while chlorophylls show up on paper chromatograms of both...
- Q Which of the following will increase plant growth?carbon dioxide levels above normalbelow normal water levelsdepleted soll nutrientsdecreased light Intensity
- Q Which process is most directly driven by light energy?creation of a pH gradientby pumping protons across the thylakoid membraneATP synthesistransfer of energy from pigment molecule to pigment moleculereduction of NADP+...
- Q Consider the following facts: Rubisco can bind with both CO2 and 02. Rubisco will bind with oxygen if the oxygen concentration is too high. In C4 plants, rubisco is protected...
- Q Students are studying the process of photosynthesis in plants. Which of the following is a product of photosynthesis?A. carbon dioxideB. nitrogenC. sodium chlorideD. sugar
- Q Photosynthesis and cellular respiration are complementary, as the byproducts of one are the the other. of A. produced B. modifiedC. products D. reactants
- Q How many net GTPs+ATPs are formed via the citric acid cycle from pyruvate that is produced from the glycolytic metabolism of one molecule of glucose?
- Q The light reactions ofphotosynthesis takeplace in theA. intermembrane space.B. lumen of the cholorplast.C. thylakoid membrane.D. cytosol of mitochondria.
- Q Which of the followingstructures found inautotrophs is theclosest analog tomitochondria?A. ATP synthaseB. StromaC. Golgi ApparatusD. Chloroplasts
- Q Noncyclicphotophosphorylationonly occurs inA. Photosystem IB. Photosystem IIC. cholorphyllD. glycolysis
- Q About 90% of allenergy produced by thecell occurs through_____A. Substrate phosphorylationB. GlycolysisC. Oxidative phosphorylationD. Reductive phosphorylation
- Q If 10 W/m impacts a surface and only 3 Wim is reemitted back, what is the surface's albedo as a percent?
- Q Which of the fivepillars of Islambecame a catalyst forchange?A. Daily prayerB. Giving to the poorC. The pilgrimage to MeccaD. Submission to Allah
- Q Light energy is mainly used to harvest electrons that are used to reduce [?] to NADPH for use in other reactions. NAD+NADPNADP+
- Q Many factors can influence the rate of photosynthesis as it is a(n) catalyzed reaction that has an optimal range. A. heavy metalB. channel proteinC. ATPD. enzyme
- Q Which ONE of the following is primarily responsible for the number of ATPs made per H+ that cross the inner mitochondrial membrane by ATP synthase?The F1 stator.The reversibility of...
- Q Photosynthesis and cellular respiration are both_ catalyzed reactions.A.aquaporinB. proteinC.carbonD. enzyme
- Q 6CO? + 6H?O ? C6H12O6 + 60?The equation above indicates that glucose and [?] are products of photosynthesis.A. CO2B. C6H12O6C. O2
- Q The chemical reaction for photosynthesis is the reverse of the chemical reaction for cellular respiration.A. TrueB. False
- Q Which structure is responsible for the initial physical movement of solar energy to chemical energy?antenna proteinsreaction centerlight-harvesting complexchloroplasts
- Q If water could not be split, photosynthesis would stop becauseA. water has a balancing effect in the plants chemistry that cannot be maintained without itB. the oxygen molecule in water...
- Q In the energy from sunlight is absorbed by chlorophyll and that energy is converted into stored chemical energy. In the the chemical energy harvested during the light-dependent reactions drives the...
- Q The function of mitochondria and chloroplasts is related to energy. In what way does their function differ?A. Mitochondria produce energy in prokaryotic cells, while chloroplasts produce energy in eukaryotic cells.B....
- Q Sunlight is composed of energy that is visible to humans and energy that is not visible to humans. Which statement describes how the visible energy from the Sun is different...
- Q The Puritans advanced intellectual recognition for the American Colonies in what way? A. Through their political pamphlets which they distributed to all Puritans in the colonies B. Through the publication...
- Q The glycolysis pathway and gluconeogenesis pathway are separated at the following reactions except:1. Glucose-6 phosphate fructose-6-phosphate2. Phosphoenolpyruvate ? pyruvate3. Glucose glucose -6 phosphate4.1,6-bisphosphofructose-fructose-6-phosphate
- Q Stomata are pores on the surfaces of the leaves and stems of plants that regulate gas exchange between the plants and the atmosphere.Researchers found that the stomata density on the...
- Q The study of rates of chemical reactions.regulationkineticsequilibriumMichaelis-Mentencatalysis
- Q Atrazine is an herbicide that prevents plant growth by inhibiting photosynthesis. Atrazine works by binding to proteins in the electron transport chain of photosystem II. Once atrazine binds to the...
- Q Which of the following questions is most relevant to understanding the Calvin cycle?(A) How does chlorophyll capture light?(B) How is ATP used in the formation of 3-carbon carbohydrates?(C) How is...
- Q The is also called the dark reaction in photosynthesis.Phantom cycleKrebs cycleCalvin cycle
- Q Producers in an ecosystem generally use photosynthesis to make their own food.Which of the following best describe impacts of photosynthesis on producers and the environment?Choose 2 answers:Oxygen is removed from...
- Q Choose the phrase that best describes glycolysis.A cyclic series of redox reactions that process pyruvic acid and release CO2 and generate ATP and NADHA series ofredox reactions used to generate...
- Q E) Step 4: Oxidative phosphorylationComplete the following sentences (0.5 points each, 10.5 pointstotal):1. Oxidative phosphorylation has two components: _____ and _____2. The reduced coenzyme _____ produced during glycolysis, Pyruvate oxidation,...
- Q 5. Prompt- How do plants and animals rely on one another to live? (need help? Think of the bell jar experiment!)Use complete sentences to respond to all parts of this...
- Q Why do yeast cells undergo fermentation in the absence of oxygen?Energy is captured via substrate level phosphorylation during fermentationTo oxidize NADH and produce NAD+Fermentation produces more ATP than glycolysis for...
- Q The initial electron donor during photosynthesis isO NADHO lightO NADPHO H?O
- Q What is the yield from a molecule of Acetyl CoA during one round of the citric acid cycle?molecules of GTPmolecules of NADHmolecules of FADH2molecules of CO?
- Q Which is the best chemical expression for the process of photosynthesis?Oxygen + Water + Carbon dioxide = Sugar + OxygenWater + Carbon Dioxide + Energy = Sugar + OxygenCarbon Dioxide...
- Q During photosynthesis, which is a product of the Calvin cycle?O?ATPCO?Sugar
- Q 1 What are the 2 products of pyruvate in both and aerobic anaerobic conditions 2 Is NADH reduced by hydrogenase True or false
- Q us Beijernik considers Mayers findings and filters sap from infected tobacco plants to find the poison or what he called A a toxin B a protist C a virus D...
- Q Photons of light are used to split during photosynthesis A water molecules C oxygen molecules B pyruvate D carbon dioxide molecules
- Q Respiratory System Explain the functions of the organ system List and explain the major organs and their function in each system Describe the basic structure of at least one organ...
- Q A cell is performing aerobic respiration After glucose has been fully oxidized to carbon dioxide via glycolysis pyruvate processing the citric acid cycle but before the story of the electron...
- Q Please select the best terms to complete the following sentence In photosynthesis photosystem II produces Select and the Calvin cycle produces Select Select sugars NADH NADPH ATP CO2 photosystem I...
- Q The energy held in the chemical carbon carbon and carbon hydrogen bonds of organic molecules represents be harvested by a cell via its central metabolic pathways Othermal O electromagnetic O...
- Q E coli is a species of bacteria that under the appropriate growth conditions is capable of growing using fermentation anaerobic respiration or aerobic respiration Which of these processes yields the...
- Q As electrons move down the electron transport chain they give up energy What is this energy used for Oto pump protons across the membrane to make ATP directly through substrate...
- Q READING TOOL Compare and Contrast As you read your textbook compare and fermentation and cellular respiration using the Venn diagram Make sure to list the similarities in the center of...
- Q Which reaction is catalysed by the enzyme RuBisCO O a carboxylation of ribulose 1 5 bisphosphate O b conversion of glyceraldehyde 3 phosphate to ribulose 5 phosphate O c phosphorylation...
- Q A physiologist observes that as a subject exercises their rate of breathing increases The physiologist then comes up with a possible explanation for this observation In other words she Multiple...
- Q In step 1 of the citric acid cycle citrate is generated by the enzyme citrate synthase The enzyme combines 1 two carbon acetyl group from acetyl CoA and the four...
- Q What three mechanisms regulate the activity of enzymes required for the Calvin Benson Cycle phosphorylation of enzymes by RuBisCo kinase reduction of disulfide bonds that inhibit enzyme activity enzyme activators...
- Q 2 a Some cells that use the Kreb s cycle and the respiratory chain can also thrive using fermentation under anaerobic conditions Explain how these cells are still able to...
- Q Biology 1 Humans are aerobic organisms which means that oxygen is required to sustain human life What purpose does oxygen serve a lt gets added to sugar molecules to burn...
- Q 2 Which of the following statements about intracellular ATP ADP AMP and cAMP concentrations are true circle ALL that are true I pt each correct i If the net yield...
- Q 44 Buring which step of cell respiration is the majority of ttp made A Electron transport cycle B citric acid ciple ci glupolyis D prip reaction
- Q a Distinguish between complementation and recombination b Explain supplementation and its use in identifying steps in biochemical pathways
- Q True or False For each statement write T for True if the statement is true or F for False if the statement is false in all organisms fatty acids The...
- Q Which of the following statements about F1Fo ATP synthase is FALSE O The y subunit moves up and down in the membrane O The Fo is embedded in the membrane...
- Q 1 In a cell why must NADH be reoxidized How does this happen in an organism tha uses respiration Fermentation
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