Carbohydrates
... Galactose: a sugar found in milk. It is a mirror image of glucose These three molecules are isomers. They have the same chemical formula but very different structures. Because they have the same formula, they can be converted easily from one form to another. ...
... Galactose: a sugar found in milk. It is a mirror image of glucose These three molecules are isomers. They have the same chemical formula but very different structures. Because they have the same formula, they can be converted easily from one form to another. ...
Lactose digestion and maldigestion Koetse, Harmanna Antje
... can all be absorbed by the colonocytes. Subsequently the gasses are transported via the blood and exhaled. Since other biological processes in the human body do not produce hydrogen, the exhaled breath concentration of H2 represents the fermentation of carbohydrate in the colon. Unfortunately the ca ...
... can all be absorbed by the colonocytes. Subsequently the gasses are transported via the blood and exhaled. Since other biological processes in the human body do not produce hydrogen, the exhaled breath concentration of H2 represents the fermentation of carbohydrate in the colon. Unfortunately the ca ...
1 - chem.msu.su
... normal animal-cell receptor, but with the normal signal-binding site defective or missing. For example, the erbB oncogene product, a protein called ErbB, is essentially identical to the normal receptor for epidermal growth factor, except that ErbB lacks the domain that normally binds EGF (Fig. 22-37 ...
... normal animal-cell receptor, but with the normal signal-binding site defective or missing. For example, the erbB oncogene product, a protein called ErbB, is essentially identical to the normal receptor for epidermal growth factor, except that ErbB lacks the domain that normally binds EGF (Fig. 22-37 ...
Review of Glucose Metabolism File
... Review of Glucose Metabolism Match each of the following occurrences to the correct part of the glucose metabolism process. If more than one answer is correct, write all letters in the blank. A. Glycolysis B. Fermentation C. Cellular Respiration (aerobic) D. Krebs Cycle E. Electron Transport Chain _ ...
... Review of Glucose Metabolism Match each of the following occurrences to the correct part of the glucose metabolism process. If more than one answer is correct, write all letters in the blank. A. Glycolysis B. Fermentation C. Cellular Respiration (aerobic) D. Krebs Cycle E. Electron Transport Chain _ ...
Review over Glucose Metabolism
... Review over Glucose Metabolism Match each of the following occurrences to the correct part of the glucose metabolism process. If more than one answer is correct, write all letters in the blank. A. Glycolysis B. Fermentation C. Cellular Respiration (aerobic) D. Krebs Cycle E. Electron Transport Chain ...
... Review over Glucose Metabolism Match each of the following occurrences to the correct part of the glucose metabolism process. If more than one answer is correct, write all letters in the blank. A. Glycolysis B. Fermentation C. Cellular Respiration (aerobic) D. Krebs Cycle E. Electron Transport Chain ...
EFFECT OF NUTRIENTS ON THE GENE EXPRESSION: Nutri
... • In the liver, glucose, in the presence of insulin, induces expression of genes encoding glucose transporters and glycolytic and lipogenic enzymes, e.g. L-type pyruvate kinase (L-PK), acetyl-CoA carboxylase (ACC), and fatty acid synthase, and represses genes of the gluconeogenic pathway, such as t ...
... • In the liver, glucose, in the presence of insulin, induces expression of genes encoding glucose transporters and glycolytic and lipogenic enzymes, e.g. L-type pyruvate kinase (L-PK), acetyl-CoA carboxylase (ACC), and fatty acid synthase, and represses genes of the gluconeogenic pathway, such as t ...
Macromolecules Notes
... Two molecules are joined to form a larger molecule, held by covalent bonds; requires an enzyme and produces one water molecule. Each monomer contributes to water that is made, one provides the -OH, one the -H. Aka dehydration reaction ...
... Two molecules are joined to form a larger molecule, held by covalent bonds; requires an enzyme and produces one water molecule. Each monomer contributes to water that is made, one provides the -OH, one the -H. Aka dehydration reaction ...
Questions - National Biology Competition
... The conversion of nitrogen gas to nitrite by bacteria in a process called nitrification. The conversion of ammonium to nitrite by bacteria in a process called nitrification. The conversion of nitrogen gas to ammonia by bacteria in a process called nitrogen fixation. The conversion of nitrogen gas to ...
... The conversion of nitrogen gas to nitrite by bacteria in a process called nitrification. The conversion of ammonium to nitrite by bacteria in a process called nitrification. The conversion of nitrogen gas to ammonia by bacteria in a process called nitrogen fixation. The conversion of nitrogen gas to ...
EVOLUTION OF A REGULATED OPERON IN THE LABORATORY
... Using MACCONKEY-lactose indicator plates, 1 screened seven Class I, twentytwo Class 11, and twelve Class IV strains for IPTG independent lactose utilization. All of the Class IV strains were lactose positive without IPTG, while no Class I and no Class I1 strains were lactose positive without IPTG. I ...
... Using MACCONKEY-lactose indicator plates, 1 screened seven Class I, twentytwo Class 11, and twelve Class IV strains for IPTG independent lactose utilization. All of the Class IV strains were lactose positive without IPTG, while no Class I and no Class I1 strains were lactose positive without IPTG. I ...
Macromolecules Vocabulary and Concepts
... o Ring form of glucose comes in two forms: alpha and beta glucose o Starch: polymer of alpha glucose, energy storage in plants, digested by animals o Glycogen: polymer of alpha glucose, energy storage in animals o Cellulose: polymer of beta glucose, structural component of plants, not digested by an ...
... o Ring form of glucose comes in two forms: alpha and beta glucose o Starch: polymer of alpha glucose, energy storage in plants, digested by animals o Glycogen: polymer of alpha glucose, energy storage in animals o Cellulose: polymer of beta glucose, structural component of plants, not digested by an ...
jmorata/TYPES OF AGAR
... Bile salts and the dyes bromthymol blue and acid fuchsin inihibit the growth of most Gram positive organisms. Lactose, sucrose, and salicin provide fermentable carbohydrates to encourage the growth and differentiation of enterics. Sodium thiosulfate provides a source of sulfur. Ferric ammonium citra ...
... Bile salts and the dyes bromthymol blue and acid fuchsin inihibit the growth of most Gram positive organisms. Lactose, sucrose, and salicin provide fermentable carbohydrates to encourage the growth and differentiation of enterics. Sodium thiosulfate provides a source of sulfur. Ferric ammonium citra ...
KEY - Photosynthesis Workshop: Putting it All Together
... 3. Judging from # 1 & 2 and Table 1 above, how many light-dependent reactions are required to form one glucose with linear e- flow? 12 light reactions if are operating with linear e- flow. ...
... 3. Judging from # 1 & 2 and Table 1 above, how many light-dependent reactions are required to form one glucose with linear e- flow? 12 light reactions if are operating with linear e- flow. ...
Chapter 14
... 14.9 The DNA-Binding Form of the Lambda Repressor Is a Dimer • Binding to the operator requires the dimeric form so that two DNA-binding domains can contact the operator simultaneously. • Cleavage of the repressor between the two ...
... 14.9 The DNA-Binding Form of the Lambda Repressor Is a Dimer • Binding to the operator requires the dimeric form so that two DNA-binding domains can contact the operator simultaneously. • Cleavage of the repressor between the two ...
Document
... S1.In E. coli, the gene bioD encodes an enzyme involved in biotin synthesis, and galK encodes an enzyme involved in galactose utilization. An E. coli strain that contained wild-type versions of both genes was infected with P1, and then a P1 lysate was obtained. This lysate was used to transduce a st ...
... S1.In E. coli, the gene bioD encodes an enzyme involved in biotin synthesis, and galK encodes an enzyme involved in galactose utilization. An E. coli strain that contained wild-type versions of both genes was infected with P1, and then a P1 lysate was obtained. This lysate was used to transduce a st ...
Finding Promoters other important genomic sequences
... that common, promoter / regulatory [silencer/enhancer] functionality can be obtained from underlying conserved, sequences. – Genes that are co-regulation or co-expression provide good candidates for obtaining data for this approach; – Co-regulated genes (on/off), have the same regulatory elements, o ...
... that common, promoter / regulatory [silencer/enhancer] functionality can be obtained from underlying conserved, sequences. – Genes that are co-regulation or co-expression provide good candidates for obtaining data for this approach; – Co-regulated genes (on/off), have the same regulatory elements, o ...
D (+)-Glucose, anhydrous
... cultured cells. Several transporter proteins are involved in transport of glucose molecules in and out of the cells via cell membrane. Glucose cannot enter or exit the cells without these proteins. Once inside the cells, it serves as a major substrate in following cell metabolic pathways: 1) Glycoly ...
... cultured cells. Several transporter proteins are involved in transport of glucose molecules in and out of the cells via cell membrane. Glucose cannot enter or exit the cells without these proteins. Once inside the cells, it serves as a major substrate in following cell metabolic pathways: 1) Glycoly ...
Number 49, 2002 13 Balázs Csóka , Tamás Zeke
... BimG11 was described as a temperature-sensitive recessive mutation that causes the block of m itosis accompanied with the overphosphorylation of nuclear proteins and distinct morphological changes in Aspergillus nidulans (Doonan and Morris, 1989 Cell 57: 987996). In addition the mutant was defective ...
... BimG11 was described as a temperature-sensitive recessive mutation that causes the block of m itosis accompanied with the overphosphorylation of nuclear proteins and distinct morphological changes in Aspergillus nidulans (Doonan and Morris, 1989 Cell 57: 987996). In addition the mutant was defective ...
Microarray technology and analysis of gene expression data
... –Weak spots: small difference in signal may be big relative difference (high ratio). ...
... –Weak spots: small difference in signal may be big relative difference (high ratio). ...
Specialties: Microbial Diversity and Bacterial Membrane Proteins
... determined, (4) at least 17 putP substrate specificity mutants were isolated and currently subjected to sequencing analysis, (5) more than 100 second-site revertants were isolated, and (6) the DNA sequences of different proline permeases and other proline binding proteins are determined and accessib ...
... determined, (4) at least 17 putP substrate specificity mutants were isolated and currently subjected to sequencing analysis, (5) more than 100 second-site revertants were isolated, and (6) the DNA sequences of different proline permeases and other proline binding proteins are determined and accessib ...
glycolysis4bio
... that make a little bit of ATP from the partial breakdown of sugar into energy. • Organisms usually choose one of two paths after glycolysis: Fermentation or Aerobic Respiration. ...
... that make a little bit of ATP from the partial breakdown of sugar into energy. • Organisms usually choose one of two paths after glycolysis: Fermentation or Aerobic Respiration. ...
Regulation of Galactoside Transport by the PTS
... demonstrated that Ala-198 and Ser-209 were replaced in these mutants. The results suggested that cytoplasmic central loop of the lactose carrier protein was also a binding site of IIAGlc. Hoischen et al. (1996) later confirmed the results of Wilson et al. by using direct binding assay. Hoischen et a ...
... demonstrated that Ala-198 and Ser-209 were replaced in these mutants. The results suggested that cytoplasmic central loop of the lactose carrier protein was also a binding site of IIAGlc. Hoischen et al. (1996) later confirmed the results of Wilson et al. by using direct binding assay. Hoischen et a ...
Lac operon
lac operon (lactose operon) is an operon required for the transport and metabolism of lactose in Escherichia coli and many other enteric bacteria. Although glucose is the preferred carbon source for most bacteria, the lac operon allows for the effective digestion of lactose when glucose is not available. Gene regulation of the lac operon was the first genetic regulatory mechanism to be understood clearly, so it has become a foremost example of prokaryotic gene regulation. It is often discussed in introductory molecular and cellular biology classes at universities for this reason.Bacterial operons are polycistronic transcripts that are able to produce multiple proteins from one mRNA transcript. In this case, when lactose is required as a sugar source for the bacterium, the three genes of the lac operon can be expressed and their subsequent proteins translated: lacZ, lacY, and lacA. The gene product of lacZ is β-galactosidase which cleaves lactose, a disaccharide, into glucose and galactose. LacY encodes lactose permease, a protein which becomes embedded in the cytoplasmic membrane to enable transport of lactose into the cell. Finally, lacA encodes galactoside O-acetyltransferase. Layout of the lac operon.It would be wasteful to produce the enzymes when there is no lactose available or if there is a more preferable energy source available, such as glucose. The lac operon uses a two-part control mechanism to ensure that the cell expends energy producing the enzymes encoded by the lac operon only when necessary. In the absence of lactose, the lac repressor halts production of the enzymes encoded by the lac operon. In the presence of glucose, the catabolite activator protein (CAP), required for production of the enzymes, remains inactive, and EIIAGlc shuts down lactose permease to prevent transport of lactose into the cell. This dual control mechanism causes the sequential utilization of glucose and lactose in two distinct growth phases, known as diauxie.