substrates on the rate of cellular respiration in yeast was determined by using the Smith fermentation tube method. Mixtures of 15ml distilled H2O‚ 10% yeast suspension and 15ml of the following solutions (all at 10% concentration):1- starch‚ 2 – lactose‚ 3 – sucrose‚ 4 – glucose‚ 5 – fructose‚ 6 – distilled water ‚ were poured in six smith fermentation tubes. Cotton balls were plugged in the openings of the tubes and the tubes were kept upright and observed for 30 minutes. The mixture with the sucrose
Premium Cellular respiration Carbon dioxide Metabolism
Chapter 10 and 11– Homework 1. Describe the stages of transcription. Initiation- Initiator tRNA binds to small ribosomal subunit. Small subunit/tRNA complex attaches to mRNA and moves along it to an AUG “start” codon. Large ribosomal subunit joins complex. Initiation must occur in the order listed above. Elongation- mRNA passes through ribosomal subunits. tRNAs deliver amino acids to the ribosomal binding site in the order specified by the mRNA. Peptide bonds form between the amino acids and
Premium RNA Gene Gene expression
Aim: To find out which samples consists of starch/ proteins/ reducing sugar/disaccharide out of 4 given samples A‚ B‚ C and D. Research Question: Out of the four given samples which sample consists of protein/ starch/reducing sugar/ disaccharide? What color changes will help to identify the contents of each sample when treated with iodine‚ biuret agent and benedicts solution? Theory and background information: What is a protein?1 Proteins are macromolecules‚ consisting of one or more chains
Premium Glucose Disaccharide Amino acid
THE 4 QUALITIES OF GOOD WATER by Dr. Robert O. Young There are many measurements of water‚ but the most important for determining the best water to drink are‚ the pH‚ oxidative reduction potential—or energy potential/activity—molecular structure‚ and purity. Science has helped us to determine that the best measurements for our drinking water are the pH and purity‚ but little understood is the importance of the molecular structure of water. Assuming that most waters that humans are drinking
Premium Water Oxygen Hydrogen
code specific enzymes necessary for the metabolism of lactose. The genes _lacZ_‚ _lacY_ and _lacI_ would code for beta-galactosidase‚ galactosidase permease and _lac_ repressor respectively. Regulation of _lac_ operon is also tight and the operon’s negative control is made possible by _lac_ repressor (Hill‚ 1996). With the presence of _lac_ repressor‚ _lac_ operon will be deactivated and will remain on this state unless acted upon by lactose. Consequently‚ transcribing the genes inside _lac_ operon
Free Protein Immune system Western blot
carbohydrates. The second day I increased my fruit intake and meat intake‚ decreased the bread intake and I increased the dairy intake because I included cheese but I am going to have to substitute something else because I am lactose intolerant. The milk I drink is lactose free and nonfat. I will have to work very hard on the modifications because I am going thru menopause and the cravings are unbearable at times. I have considered taking diet pills to control the cravings. I am borderline diabetic
Free Nutrition Milk Maize
BSCI 222 – Principles of Genetics Required Homework #9 Chapters 16 & 17 – Gene Expression 1. Indicate the phenotypes of the following E. coli lac partial diploids in terms of the active enzymes synthesized. With lactose? Without lactose? a. I-P+O+Z+Y-/I+P-O+Z+Y+ - + b. I-P+OCZ+Y-/I+P+O+Z-Y+ + - c. I-P+OCZ+Y+/I-P+O+Z+Y - - d. I+P-OCZ+Y+/I-P+OC
Premium DNA Gene expression Gene
AGR 3303 Genetics Exam 2 February 28‚ 2007 There are 25 questions and each correct response is worth 4 points. Please darken in the circles to spell your last name‚ FI‚ and MI and to record your UF ID and test code number. The test code number is located at the bottom of each page of your exam and should be recorded in the spaces provided for questions 76-80. Failure to correctly mark your the test code will result in a grade of 0 for your exam score. Once exams have been graded‚ your grade will
Premium RNA DNA Gene expression
INTRODUCTION Macromolecules are highly important organized organic molecules that are found within living cells. These biological molecules help the body execute precise important tasks. There are four types of macromolecules: carbohydrates‚ lipids‚ proteins and nucleic acids. (Karp‚ 2010) This specific experiment showcased the identification of different macromolecules using three different testing methods. Carbohydrates‚ sugar molecules‚ are known as “fast fuel” in the body‚ and they contain
Free Glucose Carbohydrate Sugar
intestine‚ it activates the immune system to attack the intestine lining. Destroying the finger like projections called Villi which are involved in the absorption of the nutrients. Lactose Intolerance This is caused by a lack of lactose. Milk and milk products are the only source of lactose in the diet. When people who are lactose intolerant take in milk and milk products they can experience indigestion‚ stomach cramps‚ wind and diarrhoea. They must then adjust their daily intake and or change their diet
Premium Nutrition