Answers to Exam 2 multiple choice and TF questions
... statement does not follow logically from the first part. • If there are two statements, the first statement is true and you are to determine whether the second statement is true or false. • 2 PT for each question 8. T F If the mechanism that normally senses tension across two sister chromatids (in m ...
... statement does not follow logically from the first part. • If there are two statements, the first statement is true and you are to determine whether the second statement is true or false. • 2 PT for each question 8. T F If the mechanism that normally senses tension across two sister chromatids (in m ...
An Introduction to Metabolism
... Too much activation energy for life • Activation energy – amount of energy needed to destabilize the bonds of a molecule – moves the reaction over an “energy hill” ...
... Too much activation energy for life • Activation energy – amount of energy needed to destabilize the bonds of a molecule – moves the reaction over an “energy hill” ...
Amino acids and protein (lect 3%2c 2015)
... – Lysozyme, an enzyme that attacks bacteria, consists of a polypeptide chain of 129 amino acids. –The precise primary structure of a protein is determined by inherited genetic information carried on DNA. – At one end is an amino acid with a free amino group the (the N-terminus) and at the other is a ...
... – Lysozyme, an enzyme that attacks bacteria, consists of a polypeptide chain of 129 amino acids. –The precise primary structure of a protein is determined by inherited genetic information carried on DNA. – At one end is an amino acid with a free amino group the (the N-terminus) and at the other is a ...
AP Bio ch 6
... - metabolic reactions are “pulled forward” because their products become reactants for the next reaction in the metabolic pathway ...
... - metabolic reactions are “pulled forward” because their products become reactants for the next reaction in the metabolic pathway ...
4/5, 4/7 biology worksheet Definitions: ∆G, Activation energy
... 1. Which of the following statements is true? a. Exergonic reaction means activation energy is bigger than ∆G b. Exergonic reaction means starting material has lower energy than the products c. Exergonic reaction states that the molecule has less energy after the reaction d. Exergonic reactions mean ...
... 1. Which of the following statements is true? a. Exergonic reaction means activation energy is bigger than ∆G b. Exergonic reaction means starting material has lower energy than the products c. Exergonic reaction states that the molecule has less energy after the reaction d. Exergonic reactions mean ...
Citric Acid Cycle
... Oxidation of 2 isocitrate (2NADH) 6 ATP Oxidation of 2 -ketoglutarate (2NADH) 6 ATP 2 Direct substrate phosphorylations (2GTP) 2 ATP Oxidation of 2 succinate (2FADH2) 4 ATP Oxidation of 2 malate (2NADH) 6 ATP 24 ATP Summary: 2Acetyl CoA + 24 ADP + 24 Pi 4CO2 + 2H2O + 24 ATP + 2 CoASH ...
... Oxidation of 2 isocitrate (2NADH) 6 ATP Oxidation of 2 -ketoglutarate (2NADH) 6 ATP 2 Direct substrate phosphorylations (2GTP) 2 ATP Oxidation of 2 succinate (2FADH2) 4 ATP Oxidation of 2 malate (2NADH) 6 ATP 24 ATP Summary: 2Acetyl CoA + 24 ADP + 24 Pi 4CO2 + 2H2O + 24 ATP + 2 CoASH ...
Pentose Phosphate Pathway
... Glyceraldehyde‐3‐P and fructose‐6‐P may be converted to glucose‐6‐P, via enzymes of gluconeogenesis, for reentry to Pentose Phosphate Pathway, maximizing formation of NADPH, which is need for reductive biosynthesis. ...
... Glyceraldehyde‐3‐P and fructose‐6‐P may be converted to glucose‐6‐P, via enzymes of gluconeogenesis, for reentry to Pentose Phosphate Pathway, maximizing formation of NADPH, which is need for reductive biosynthesis. ...
pharmaceutical biochemistry
... serves as a precursor for metabolic intermediates for biosynthetic reactions. Glycolysis is an almost universal central pathway of anaerob glucose catabolism. It takes place in the cytosol because the plasma membrane generally lacks transporters for phosphorylated sugars and so the intermediates can ...
... serves as a precursor for metabolic intermediates for biosynthetic reactions. Glycolysis is an almost universal central pathway of anaerob glucose catabolism. It takes place in the cytosol because the plasma membrane generally lacks transporters for phosphorylated sugars and so the intermediates can ...
(pt=3) Two ways in which DNA and RNA are similar include
... Diagram how salt (NaCl or sodium chloride) can dissolve in water. Show examples of ...
... Diagram how salt (NaCl or sodium chloride) can dissolve in water. Show examples of ...
Odormute Breakdown Industrial Digester
... Why both Bacteria and Enzymes in the formula? Bacteria are not enzymes, they are living cells. Bacteria (sometimes called sacks of enzymes) produce and use enzymes to break down chemical compounds. Enzymes are proteins which accelerate biological reactions. Enzymes act as catalysts that bind with an ...
... Why both Bacteria and Enzymes in the formula? Bacteria are not enzymes, they are living cells. Bacteria (sometimes called sacks of enzymes) produce and use enzymes to break down chemical compounds. Enzymes are proteins which accelerate biological reactions. Enzymes act as catalysts that bind with an ...
Biochemistry 462a - Proteins Extra Questions
... which all the residues are lysine, adopts a random coil conformation, i.e., it has no secondary structure, but at pH 12 it is present as a -helix. 8. The binding of a ligand (L) to a protein (P) is often a simple equilibrium, P + L PL, which is characterized by the dissociation constant Kd = [L] ...
... which all the residues are lysine, adopts a random coil conformation, i.e., it has no secondary structure, but at pH 12 it is present as a -helix. 8. The binding of a ligand (L) to a protein (P) is often a simple equilibrium, P + L PL, which is characterized by the dissociation constant Kd = [L] ...
PDF | 816.8KB - New Jersey Center for Teaching and Learning
... Emergence of Organic Molecules-Answer Key 1. They created an artificial laboratory model of our ancient atmospheric gases along with electric charges and water formation of the primitive components of organic molecules is possible. Organic molecules are found in all living organisms. 2. Scientist u ...
... Emergence of Organic Molecules-Answer Key 1. They created an artificial laboratory model of our ancient atmospheric gases along with electric charges and water formation of the primitive components of organic molecules is possible. Organic molecules are found in all living organisms. 2. Scientist u ...
03_Clicker_Questions
... from bacterial infections. Which of the following best describes the outside of the molecule? a. Mostly hydrophobic side groups are on the surface of the molecule. b. Mostly hydrophilic side groups are on the surface of the molecule. ...
... from bacterial infections. Which of the following best describes the outside of the molecule? a. Mostly hydrophobic side groups are on the surface of the molecule. b. Mostly hydrophilic side groups are on the surface of the molecule. ...
08_DetailLectOut_jkAR
... Metabolic pathways begin with a specific molecule, which is then altered in a series of defined steps to form a specific product. ...
... Metabolic pathways begin with a specific molecule, which is then altered in a series of defined steps to form a specific product. ...
The Citric Acid Cycle Is a Source of Biosynthetic Precursors
... It is most likely that the citric acid cycle was assembled from preexisting reaction pathways. As noted earlier, many of the intermediates formed in the citric acid cycle are used in biosynthetic pathways to generate amino acids and porphyrins. Thus, compounds such as pyruvate, α-ketoglutarate, and ...
... It is most likely that the citric acid cycle was assembled from preexisting reaction pathways. As noted earlier, many of the intermediates formed in the citric acid cycle are used in biosynthetic pathways to generate amino acids and porphyrins. Thus, compounds such as pyruvate, α-ketoglutarate, and ...
Lec 15: Nitrogen in biochemistry
... and is vital for crop production. However, biological N2 fixation is limited in rate as N=N is extremely stable. • In 1909 – Fritz Haber invented the direct chemical synthesis of NH3 from N2 + H2 in lab. immediately German chemical company BASF bought the process and tried to scale it up. BASF engin ...
... and is vital for crop production. However, biological N2 fixation is limited in rate as N=N is extremely stable. • In 1909 – Fritz Haber invented the direct chemical synthesis of NH3 from N2 + H2 in lab. immediately German chemical company BASF bought the process and tried to scale it up. BASF engin ...
1 - u.arizona.edu
... Cell requires both NADPH and ribose-5-P - cell operates only oxidative branch of pentose pathway - all ribulose-5-P converted to ribose-5-P 2. REACTIVE OXYGEN SPECIES (ROS) - toxic ROS generated during normal course of cellular metabolism; ROS inhibited through action of antioxidants - look at table ...
... Cell requires both NADPH and ribose-5-P - cell operates only oxidative branch of pentose pathway - all ribulose-5-P converted to ribose-5-P 2. REACTIVE OXYGEN SPECIES (ROS) - toxic ROS generated during normal course of cellular metabolism; ROS inhibited through action of antioxidants - look at table ...
15.3 Homeostasis - Liver Functions
... The fate of surplus amino acids within the liver cells involves: • Deamination; the removal of the amino group from an amino acid, producing ammonia and a keto acid; the toxic ammonia is converted into urea, which is transported to the kidneys for excretion; the keto acid may enter the respiratory p ...
... The fate of surplus amino acids within the liver cells involves: • Deamination; the removal of the amino group from an amino acid, producing ammonia and a keto acid; the toxic ammonia is converted into urea, which is transported to the kidneys for excretion; the keto acid may enter the respiratory p ...
With increased exercise, who experienced an
... If our body’s are using up food and oxygen what will they need more of? ...
... If our body’s are using up food and oxygen what will they need more of? ...
Metabolism
Metabolism (from Greek: μεταβολή metabolē, ""change"") is the set of life-sustaining chemical transformations within the cells of living organisms. These enzyme-catalyzed reactions allow organisms to grow and reproduce, maintain their structures, and respond to their environments. The word metabolism can also refer to all chemical reactions that occur in living organisms, including digestion and the transport of substances into and between different cells, in which case the set of reactions within the cells is called intermediary metabolism or intermediate metabolism.Metabolism is usually divided into two categories: catabolism, the breaking down of organic matter by way of cellular respiration, and anabolism, the building up of components of cells such as proteins and nucleic acids. Usually, breaking down releases energy and building up consumes energy.The chemical reactions of metabolism are organized into metabolic pathways, in which one chemical is transformed through a series of steps into another chemical, by a sequence of enzymes. Enzymes are crucial to metabolism because they allow organisms to drive desirable reactions that require energy that will not occur by themselves, by coupling them to spontaneous reactions that release energy. Enzymes act as catalysts that allow the reactions to proceed more rapidly. Enzymes also allow the regulation of metabolic pathways in response to changes in the cell's environment or to signals from other cells.The metabolic system of a particular organism determines which substances it will find nutritious and which poisonous. For example, some prokaryotes use hydrogen sulfide as a nutrient, yet this gas is poisonous to animals. The speed of metabolism, the metabolic rate, influences how much food an organism will require, and also affects how it is able to obtain that food.A striking feature of metabolism is the similarity of the basic metabolic pathways and components between even vastly different species. For example, the set of carboxylic acids that are best known as the intermediates in the citric acid cycle are present in all known organisms, being found in species as diverse as the unicellular bacterium Escherichia coli and huge multicellular organisms like elephants. These striking similarities in metabolic pathways are likely due to their early appearance in evolutionary history, and their retention because of their efficacy.