Page 1 of 61 EOC Practice Subject: Science, Grade: HS, Year
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... Read these directions carefully before you start the test. To display these directions again, click the ? [Help] button and select the Test Directions tabs. This test has multiple-choice questions only and each question has four answer choices. One question appears on the computer screen at a time. ...
2.277 December 2004 Final Exam
... 3) Phospholipid molecules in bilayers can move laterally and can also move from one side of the bilayer to the other. 4) Polar molecules can easily cross a phospholipid bilayer 5) All of the above are true ...
... 3) Phospholipid molecules in bilayers can move laterally and can also move from one side of the bilayer to the other. 4) Polar molecules can easily cross a phospholipid bilayer 5) All of the above are true ...
(TEQ) Model of the Electron - Superluminal quantum models of the
... • is a helically moving point-like quantum object having a frequency and a wavelength, and carrying energy and momentum. • can easily pass through the speed of light (being massless). • can generate a photon or an electron depending on whether the energy quantum’s helical trajectory is open or close ...
... • is a helically moving point-like quantum object having a frequency and a wavelength, and carrying energy and momentum. • can easily pass through the speed of light (being massless). • can generate a photon or an electron depending on whether the energy quantum’s helical trajectory is open or close ...
Adv. Bio. Ch 9 Glyco and Resp
... Glycolysis means “splitting of sugar” glucose (6C) 2 pyruvate (3C) 10 steps of glycolysis each with their own enzyme are broken down into two phases: energy ...
... Glycolysis means “splitting of sugar” glucose (6C) 2 pyruvate (3C) 10 steps of glycolysis each with their own enzyme are broken down into two phases: energy ...
Chemistry
... digested. Each bond between the monos must be broken. Made up of 3 to 4000 monos so there is not one common chemical formula. ...
... digested. Each bond between the monos must be broken. Made up of 3 to 4000 monos so there is not one common chemical formula. ...
Teaching metabolic pathways
... accompanied by the synthesis of ATP and NADH. ATP is well-known as the universal energy 'currency' of living systems. N A D H carries electrons, whose energy can be readily converted into the ATP currency. With this knowledge, it can be surmised that one purpose of the glycolytic pathway is to extra ...
... accompanied by the synthesis of ATP and NADH. ATP is well-known as the universal energy 'currency' of living systems. N A D H carries electrons, whose energy can be readily converted into the ATP currency. With this knowledge, it can be surmised that one purpose of the glycolytic pathway is to extra ...
Practice Questions MT I Oct 03, 2011
... a) in oxygen rich waters where there is little dissolved organic matter b) near the bottom in lakes and ponds where there is little or no oxygen and sulfide is present c) at depths where some light is present d) both b and c are true e) none of these are true Halobacterium are considered photohetero ...
... a) in oxygen rich waters where there is little dissolved organic matter b) near the bottom in lakes and ponds where there is little or no oxygen and sulfide is present c) at depths where some light is present d) both b and c are true e) none of these are true Halobacterium are considered photohetero ...
Cellular Respiration - Ursuline High School
... c: is one of the proteins of the electron transport chain… often used by geneticists to determine relatedness… exists in all ...
... c: is one of the proteins of the electron transport chain… often used by geneticists to determine relatedness… exists in all ...
Cellular Respiration: Harvesting Chemical Energy
... c: is one of the proteins of the electron transport chain… often used by geneticists to determine relatedness… exists in all ...
... c: is one of the proteins of the electron transport chain… often used by geneticists to determine relatedness… exists in all ...
Vegetative plant morphology - UNL, Go URL
... Epidermis refers to the top and bottom layers of cells on a leaf. The primary function of the epidermis is to protect leaf tissue. Cuticle is the outer layer of the epidermis. It produces a waxy layer called cutin. Cutin protects leaves from dehydration and prevents penetration of some diseases from ...
... Epidermis refers to the top and bottom layers of cells on a leaf. The primary function of the epidermis is to protect leaf tissue. Cuticle is the outer layer of the epidermis. It produces a waxy layer called cutin. Cutin protects leaves from dehydration and prevents penetration of some diseases from ...
Energy Conversion Pathways 1. Substrate level phosphorylation
... 31. Cyanide blocks electron transfer in the ETS resulting in the loss of the proton motive force that is required to drive ATP synthesis. 32. Thermogenin uncouples the electron transport system from oxidative phosphorylation. Therefore, more heat is generated by the ETS in thermogenin containing fat ...
... 31. Cyanide blocks electron transfer in the ETS resulting in the loss of the proton motive force that is required to drive ATP synthesis. 32. Thermogenin uncouples the electron transport system from oxidative phosphorylation. Therefore, more heat is generated by the ETS in thermogenin containing fat ...
Cellular Respiration
... *potential energy = stored kinetic energy = being used *can be transformed from one type to another – -battery - chemical to electrical -roll downhill - potential to kinetic -flip light switch –mechanical to electrical to light & heat *it is the ability to do work! ...
... *potential energy = stored kinetic energy = being used *can be transformed from one type to another – -battery - chemical to electrical -roll downhill - potential to kinetic -flip light switch –mechanical to electrical to light & heat *it is the ability to do work! ...
Teacher Key - Free-2
... Despite the complexity of life on Earth, the most important large molecules found in all living things (biomolecules) can be classified into only four main categories: carbohydrates, lipids, proteins and nucleic acids. Three of these four classes of biomolecules – carbohydrates, proteins and nucleic ...
... Despite the complexity of life on Earth, the most important large molecules found in all living things (biomolecules) can be classified into only four main categories: carbohydrates, lipids, proteins and nucleic acids. Three of these four classes of biomolecules – carbohydrates, proteins and nucleic ...
File - Ms. Richards IB Biology HL
... ions (70%), and as carbaminohemoglobin (20-25%) • Carbon dioxide in blood is temporarily converted to carbonic acid. This conversion is catalyzed by an enzyme in red blood cells called carbonic anhydrase. This carbonic acid dissociates into H+ ions and bicarbonate ions • Most of the carbon dioxide ( ...
... ions (70%), and as carbaminohemoglobin (20-25%) • Carbon dioxide in blood is temporarily converted to carbonic acid. This conversion is catalyzed by an enzyme in red blood cells called carbonic anhydrase. This carbonic acid dissociates into H+ ions and bicarbonate ions • Most of the carbon dioxide ( ...
Timely Grain Harvest
... Lodging not only makes harvesting difficult, but it has an effect on your pocketbook as well. OMAFRA research found that 5% lodging loss could cost $35-40 per acre (based on 160‑200 bu/ac yield, $4.50/bu corn)2. This loss would pay to dry 4-5 points of moisture per acre of corn production. ...
... Lodging not only makes harvesting difficult, but it has an effect on your pocketbook as well. OMAFRA research found that 5% lodging loss could cost $35-40 per acre (based on 160‑200 bu/ac yield, $4.50/bu corn)2. This loss would pay to dry 4-5 points of moisture per acre of corn production. ...
Electron Transport Oxidative Phosphorylation Control
... ∆G = 2.3RT[pH(in) - pH(out)] + ZF∆Ψ Z is charge on proton (+1), F is faraday constant, ∆Ψ is membrane potential (∆Ψ is positive when ion transported from negative to positive) It takes energy to transport H+ from matrix to intermembrane space 1 H+ → ∆G ~21.5 kJ.mol-1 ~3 H+ to synthesize 1 ATP ...
... ∆G = 2.3RT[pH(in) - pH(out)] + ZF∆Ψ Z is charge on proton (+1), F is faraday constant, ∆Ψ is membrane potential (∆Ψ is positive when ion transported from negative to positive) It takes energy to transport H+ from matrix to intermembrane space 1 H+ → ∆G ~21.5 kJ.mol-1 ~3 H+ to synthesize 1 ATP ...
Forest Environment
... inside out, not up or down the length of a trunk, branch, or root. For awhile, the new wood and bark are living. The wood actively transports many materials up and down the tree and performs other functions. After the wood dies, it still serves as a transport route for several years. Eventually, eve ...
... inside out, not up or down the length of a trunk, branch, or root. For awhile, the new wood and bark are living. The wood actively transports many materials up and down the tree and performs other functions. After the wood dies, it still serves as a transport route for several years. Eventually, eve ...
Slide 1
... Cellular respiration produces 38 ATP molecules from each glucose molecule ENERGY RELEASING!! Like burning fuel in car or burning wood in fireplace ...
... Cellular respiration produces 38 ATP molecules from each glucose molecule ENERGY RELEASING!! Like burning fuel in car or burning wood in fireplace ...
What Corals are Dying to Tell Us About CO and
... of rock. Most of Earth’s deep interior is made up of silicate rocks. On the surface, these rocks begin to dissolve as they are rained upon or come into contact with groundwater in the presence of carbon dioxide. This process is known as chemical weathering. When silicate rocks dissolve, they release ...
... of rock. Most of Earth’s deep interior is made up of silicate rocks. On the surface, these rocks begin to dissolve as they are rained upon or come into contact with groundwater in the presence of carbon dioxide. This process is known as chemical weathering. When silicate rocks dissolve, they release ...
Cellular Respiration
... Photosynthesis builds these large organic molecules using CO2 as building blocks and solar radiation as the energy source. ...
... Photosynthesis builds these large organic molecules using CO2 as building blocks and solar radiation as the energy source. ...
Cellular Respiration
... 6.13 Fermentation enables cells to produce ATP without oxygen Lactate is carried by the blood to the liver, where it is converted back to pyruvate and oxidized in the mitochondria of liver cells. The dairy industry uses lactic acid fermentation by bacteria to make cheese and yogurt. Other typ ...
... 6.13 Fermentation enables cells to produce ATP without oxygen Lactate is carried by the blood to the liver, where it is converted back to pyruvate and oxidized in the mitochondria of liver cells. The dairy industry uses lactic acid fermentation by bacteria to make cheese and yogurt. Other typ ...
Unit One
... 1- Air enters the lungs in the process of ………….. (inhalation – exhalation – excretion – digestion) 2- Air leaves the lungs during the …………… (exhalation – inhalation – digestion – absorption) 3- The common path of food and air is the …………… (nose – pharynx – diaphragm – larynx ) 4- The …………. Is locate ...
... 1- Air enters the lungs in the process of ………….. (inhalation – exhalation – excretion – digestion) 2- Air leaves the lungs during the …………… (exhalation – inhalation – digestion – absorption) 3- The common path of food and air is the …………… (nose – pharynx – diaphragm – larynx ) 4- The …………. Is locate ...
Photosynthesis
Photosynthesis is a process used by plants and other organisms to convert light energy, normally from the Sun, into chemical energy that can be later released to fuel the organisms' activities. This chemical energy is stored in carbohydrate molecules, such as sugars, which are synthesized from carbon dioxide and water – hence the name photosynthesis, from the Greek φῶς, phōs, ""light"", and σύνθεσις, synthesis, ""putting together"". In most cases, oxygen is also released as a waste product. Most plants, most algae, and cyanobacteria perform photosynthesis; such organisms are called photoautotrophs. Photosynthesis maintains atmospheric oxygen levels and supplies all of the organic compounds and most of the energy necessary for life on Earth.Although photosynthesis is performed differently by different species, the process always begins when energy from light is absorbed by proteins called reaction centres that contain green chlorophyll pigments. In plants, these proteins are held inside organelles called chloroplasts, which are most abundant in leaf cells, while in bacteria they are embedded in the plasma membrane. In these light-dependent reactions, some energy is used to strip electrons from suitable substances, such as water, producing oxygen gas. Furthermore, two further compounds are generated: reduced nicotinamide adenine dinucleotide phosphate (NADPH) and adenosine triphosphate (ATP), the ""energy currency"" of cells.In plants, algae and cyanobacteria, sugars are produced by a subsequent sequence of light-independent reactions called the Calvin cycle, but some bacteria use different mechanisms, such as the reverse Krebs cycle. In the Calvin cycle, atmospheric carbon dioxide is incorporated into already existing organic carbon compounds, such as ribulose bisphosphate (RuBP). Using the ATP and NADPH produced by the light-dependent reactions, the resulting compounds are then reduced and removed to form further carbohydrates, such as glucose.The first photosynthetic organisms probably evolved early in the evolutionary history of life and most likely used reducing agents, such as hydrogen or hydrogen sulfide, as sources of electrons, rather than water. Cyanobacteria appeared later; the excess oxygen they produced contributed to the oxygen catastrophe, which rendered the evolution of complex life possible. Today, the average rate of energy capture by photosynthesis globally is approximately 130 terawatts, which is about three times the current power consumption of human civilization.Photosynthetic organisms also convert around 100–115 thousand million metric tonnes of carbon into biomass per year.