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15. (1 point). In the glycerophospholipid shown below the headgroup is a (In this structure the...
09. Which of the followine statements regarding channel proteins (shown below (shown below) is for propratic...
09. Which of the followine statements regarding channel proteins (shown below (shown below) is for propratic of all a. Channel proteins can assist polar molecules to cross the plasma membrane by facilitated diffusion b. The gated ion channel can allow ions to pass when stimulated to open. c. The surface of a channel protein in contact with the bilayer would likely have hydrophilic amino acids d. Water plays a role in determining which ions are allowed to pass through an...
Question 18 (6 points, 1 point for each correct answer): Match the following processes (designated I,...
Question 18 (6 points, 1 point for each correct answer): Match the following processes (designated I, II, or III) that represent various types of transport across a biological membrane with the statements designated A-D: 1. Water diffusion through the lipid bilayer of the biomembrane. II. Glucose transport via the glucose transporter in the plasma membrane. III. Pumping of protons across the lysosome membrane by a proton pump similar to the ATP-synthase complex. Write down your answers in the blank space...
Investigators introduce two proteins into the membrane of artificial lipid vesicles: (1) an ATP synthase isolated...
Investigators introduce two proteins into the membrane of artificial lipid vesicles: (1) an ATP synthase isolated from the mitochondria of cow heart muscle, and (2) a light-activated proton pump purified from the prokaryote Halobacterium halobium. The proteins are oriented as shown in the diagram. When ADP and P; are added to the external medium and the vesicle is exposed to light, would this system produce ATP? H LIGHT protein pump ATP synthase Choose one: O No, because no electron-transport chain...
FILL THE BLANK The membranes of fishes that live in extreme cold have a high proportion...
FILL THE BLANK The membranes of fishes that live in extreme cold have a high proportion of _________________ hydrocarbon tails, enabling them to stay fluid.For example, cold-adapted organisms such as winter wheat increase the percentage of _________________ phospholipids in their membranes in the autumn to prevent the membranes from solidifying during winter.There are two major populations of membrane proteins: ___________ and _____________.Integral proteins penetrate the hydrophobic interior of the lipid bilayer, usually completely spanning the membrane as ________________ proteins.________________ proteins...
Question 24 (1 point) Even though amylose and cellulose are made of similar homo-polysaccharide chains, they...
Question 24 (1 point) Even though amylose and cellulose are made of similar homo-polysaccharide chains, they have very different properties. Why? the alpha glycosidic linkage of glucose molecules in amylose cause it to form helices that exclude water O the beta glycosidic linkage of glucose molecules in cellulose forms inter-chain and intra-chain hydrogen blmds that produce straight stable fibers that exclude water Ocellulose is composed of galactose, while amylose is composed of glucose cellulose is more hydrophilic amylose makes a...
20. Word bank: Hydrophili Triacylglycerols Fatty acids Hydrophobic Amylopectin Phospholipids Glucose can form large polymers that...
20. Word bank: Hydrophili Triacylglycerols Fatty acids Hydrophobic Amylopectin Phospholipids Glucose can form large polymers that are held together by Animals store glucose in long, branched polymers called glucose in long, linear polymers called called the enzyme for degrading Steroids Hydrophilic Cholesterol Cellulose Glycoproteins bonds. Plants store or as branched polymers Animals can digest these polysaccharides, but most lack which serves as dietary fiber Lipids are be stored or broken down for energy down to produce energy. Lipids are stored...
LIPID AND MEMBRANE QUESTIONS 1. If an unsaturated fatty acid has 18 carbons, a double bond...
LIPID AND MEMBRANE QUESTIONS 1. If an unsaturated fatty acid has 18 carbons, a double bond at position would be in notation - 2. The functional groups which hold fatty acid molecules and glycerol molecules together in triacylglecerol molecules are called: 3. If a triacylglycerol is heated in aqueous sodium hydroxide (lye) solution glycerol and the sodium salts of fatty acids are produced. This mixture of sodium salts of fatty acids is called in common terminology 4. Name the four...
Date Submitted Deadline: November 26, 2018 1. Refer to the structure of a fatty acid below...
Date Submitted Deadline: November 26, 2018 1. Refer to the structure of a fatty acid below (A) What is the systematic name of this fatty acid? (B) What is the common name of this fatty acid? (C) What is the shorthand notation of this fatty acid? (D) Is this an W-3 or w-6 fatty acid? (E) What would be its melting point relative to linoleic acid? (F) What would be the general effect of this fatty acid in the fluidity...
High energy compounds that undergo oxidation to release energy are 1.) ATP and Acetyl-CoA 2.) Ac-CoA...
High energy compounds that undergo oxidation to release energy are 1.) ATP and Acetyl-CoA 2.) Ac-CoA and FADH2 3.) ATP and NADH 4.) NADH and FADH2 The portion of transmembrane proteins that spans bilayer membrane in rich in 1.) non-polar amino acids 2.) polar, uncharged amino acids 3.) amino acids which are charged at pH 7 4.) hydrophilic amino acids Substrate level phosphorylation occurs during glycolysis 1.) step 6, during the formation of 1,3 bisphosphoglycerate from GAP 2.) step 1,...
YOU MUST ANSWER THE FOLLOWING QUESTIONS ON YOUR OWN PRIOR TO CLASS REVIEW! 1. Label the...
YOU MUST ANSWER THE FOLLOWING QUESTIONS ON YOUR OWN PRIOR TO CLASS REVIEW! 1. Label the path of electrons through the light reactions of photosynthesis using the illustration below. A. Include PSII and PSI and label all the complexes involved i. Which complex pushes H* across the membrane? ii. Where do these electrons end up? iii. What is the purpose of splitting H2O? iv. Where do the light reactions take place? 2H2D Ot ENR NAOD ADP photolyetemi photosyetemi wlochtone be-...
09. Which of the followine statements regarding channel proteins (shown below (shown below) is for propratic of all a. Channel proteins can assist polar molecules to cross the plasma membrane by facilitated diffusion b. The gated ion channel can allow ions to pass when stimulated to open. c. The surface of a channel protein in contact with the bilayer would likely have hydrophilic amino acids d. Water plays a role in determining which ions are allowed to pass through an...
Question 18 (6 points, 1 point for each correct answer): Match the following processes (designated I, II, or III) that represent various types of transport across a biological membrane with the statements designated A-D: 1. Water diffusion through the lipid bilayer of the biomembrane. II. Glucose transport via the glucose transporter in the plasma membrane. III. Pumping of protons across the lysosome membrane by a proton pump similar to the ATP-synthase complex. Write down your answers in the blank space...
Investigators introduce two proteins into the membrane of artificial lipid vesicles: (1) an ATP synthase isolated from the mitochondria of cow heart muscle, and (2) a light-activated proton pump purified from the prokaryote Halobacterium halobium. The proteins are oriented as shown in the diagram. When ADP and P; are added to the external medium and the vesicle is exposed to light, would this system produce ATP? H LIGHT protein pump ATP synthase Choose one: O No, because no electron-transport chain...
Question 24 (1 point) Even though amylose and cellulose are made of similar homo-polysaccharide chains, they have very different properties. Why? the alpha glycosidic linkage of glucose molecules in amylose cause it to form helices that exclude water O the beta glycosidic linkage of glucose molecules in cellulose forms inter-chain and intra-chain hydrogen blmds that produce straight stable fibers that exclude water Ocellulose is composed of galactose, while amylose is composed of glucose cellulose is more hydrophilic amylose makes a...
20. Word bank: Hydrophili Triacylglycerols Fatty acids Hydrophobic Amylopectin Phospholipids Glucose can form large polymers that are held together by Animals store glucose in long, branched polymers called glucose in long, linear polymers called called the enzyme for degrading Steroids Hydrophilic Cholesterol Cellulose Glycoproteins bonds. Plants store or as branched polymers Animals can digest these polysaccharides, but most lack which serves as dietary fiber Lipids are be stored or broken down for energy down to produce energy. Lipids are stored...
LIPID AND MEMBRANE QUESTIONS 1. If an unsaturated fatty acid has 18 carbons, a double bond at position would be in notation - 2. The functional groups which hold fatty acid molecules and glycerol molecules together in triacylglecerol molecules are called: 3. If a triacylglycerol is heated in aqueous sodium hydroxide (lye) solution glycerol and the sodium salts of fatty acids are produced. This mixture of sodium salts of fatty acids is called in common terminology 4. Name the four...
Date Submitted Deadline: November 26, 2018 1. Refer to the structure of a fatty acid below (A) What is the systematic name of this fatty acid? (B) What is the common name of this fatty acid? (C) What is the shorthand notation of this fatty acid? (D) Is this an W-3 or w-6 fatty acid? (E) What would be its melting point relative to linoleic acid? (F) What would be the general effect of this fatty acid in the fluidity...
YOU MUST ANSWER THE FOLLOWING QUESTIONS ON YOUR OWN PRIOR TO CLASS REVIEW! 1. Label the path of electrons through the light reactions of photosynthesis using the illustration below. A. Include PSII and PSI and label all the complexes involved i. Which complex pushes H* across the membrane? ii. Where do these electrons end up? iii. What is the purpose of splitting H2O? iv. Where do the light reactions take place? 2H2D Ot ENR NAOD ADP photolyetemi photosyetemi wlochtone be-...
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