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Unit 3 Quizzes

QuestionAnswer
In a certain chemical reaction, an atom loses an electron. What type of reaction is this? oxidation reduction dehydration hydrolysis oxidation
Which of the following is TRUE about how enzymes act on chemical reactions? They are used up during the reaction They speed up a reaction that is usually slower They raise the activation energy They displace reversible reactions to one direction they speed up a reaction that normally occurs more slowly
Which of these cell structures contain enzymes that accomplish digestion for the cell? mitochondria golgi bodies lysosomes ribosomes lysosomes
When is energy released from ATP? When the third phosphate is added When the bond between the 1 and 2 phosphate is broken When the bond between the 2 and 3 phosphate is broken when adenine is added when the bond between the second and third phosphate is broken
ATP is an important energy molecule. Structurally, it is made up of an adenine molecule, three phosphates and which of the following sugars? ribose fructose glucose sucrose ribose
Enzymes are proteins made in our cells to do which of the following? all options are correct effect the speed of the reactions place stress on the bonds of a substrate to cause it to break apart join with a substrate to help cause a change in it all options are correct
The type of potential energy that exists within chemical bonds is kinetic energy electrical energy thermal energy chemical energy chemical energy
Which Law of Thermodynamics states that the total amount of energy is constant? Law of Entropy First Law of Thermodynamics Third Law of Thermodynamics Second Law of Thermodynamics First Law of Thermodynamics
The processes that are "building" are referred to as catabolic anabolic neither both anabolic
An allosteric inhibitor does which of the following? the answers are too long suck my toe studystack Binds to an enzyme away from the active site and changes the conformation of the active site, decreasing its affinity for the substrate
Which of the following occurs during the transition reaction of aerobic respiration? Acetyl CoA is decomposed high energy electrons form ATP glucose is split into 2 pyruvate pyruvate is converted to an acetyl group pyruvate is converted to an acetyl group
which of the following fermentation methods can occur in animal skeletal muscles? lactic acid fermentation mixed acid fermentation propionic fermentation alcohol fermentation lactic acid fermentation
Which of the following is the correct equation for aerobic cellular respiration? CO2 + H2O → Glucose + O2 + ATP Glucose + O2 → CO2 + H2O + ATP CO2 + Glucose → O2 + H2O + ATP O2 + CO2 → Glucose + H2O + ATP Glucose + H2O → O2 + CO2 + ATP Glucose + O2 → CO2 + H2O + ATP
The NADH that power the Electron Transport System, come from transition reaction all of the above glycolysis Kreb's Cycle all of the above
Cellular respiration is a series of redox (reduction/oxidation) reactions that converts ____________________ into ____________________. sunlight, energy sunlight, carbohydrates carbohydrates, AMP carbohydrates, energy carbohydrates, energy
The net energy obtained from the initial breakdown of glucose in glycolysis is ____________________. 36 ATP 2 ATP 4 ATP 32 ATP 2 ATP
Where does the Krebs cycle occur in the cell? cytoplasm grana matrix of the mitochondria stroma matrix of the mitochondria
The phase of cellular respiration that produces the most ATP is ____________________. the citric acid cycle glycolysis fermentation the electron transport chain the electron transport chain
The process of glycolysis takes place where in the cell? cytoplasm matrix cristae chloroplasts cytoplasm
In cellular respiration, glucose is broken down to produce energy and what two waste products? sugar and carbon dioxide oxygen and sugar carbon dioxide and water carbon dioxide and sugar carbon dioxide and water
What two main products result from photosynthesis? oxygen and carbon dioxide sugars/carbohydrates and carbon dioxide chlorophyll and oxygen sugars/carbohydrates and oxygen sugars/carbohydrates and oxygen
The ultimate source of energy for all life on earth comes from which of the following? the grocery store green plants nutrients in the soil the sun the sun
Where does the carbon come from that is used to make the sugar in photosynthesis? carbon monoxide in the atmosphere glucose breakdown in chloroplasts enzymes carbon dioxide in the atmosphere carbon dioxide in the atmosphere
The oxygen that plants release in photosynthesis comes from... the breakdown of glucose molecules the breakdown of water molecules the breakdown of carbon dioxide the breakdown of carbon monoxide the breakdown of water molecules
The leaves of plants appear green to our eyes because they are doing which of the following? absorbing green and yellow light waves absorbing green light waves reflecting blue and yellow light waves reflecting green light waves reflecting green light waves
Light energy is absorbed, ATP is produced, and water is split during which stage of photosynthesis? the light independent reaction glycolysis the light dependent reaction the Krebs cycle the light dependent reaction
Which of these happens during the Calvin Benson cycle? ATP is produced oxygen is produced by splitting water and is released NADPH is produced carbon dioxide is fixed to another molecule carbon dioxide is fixed to another molecule
Which of the following is the 5 carbon molecule that joins to CO2? RuBP PGA PGAL Glucose RuBP
Sugar is made during which of the following? photosystem excitation the electron transport system the light dependent reaction the Calvin Benson Cycle the Calvin Benson Cycle
The light reactions in photosynthesis consume ____ and produce _____ CO2:glucose H2O:O2 H2O:CO2 CO2:O2 H2O:O2
The Calvin Cycle in photosynthesis consumes _______ and produces ______ CO2:glucose H2O:O2 H2O:CO2 CO2:O2 CO2:glucose
The amount of energy in light is determined by measuring its ______ spectrum wavelength trough crest wavelength
Created by: mortehay000
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