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biochemistry

reece testbank chap 9

Subject: 
Biology
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Biology
cellular respiration
biochemistry
Chemistry
Glycolysis
Chemiosmosis
Mitochondrial matrix
Substrate-level phosphorylation
Citric acid cycle
Oxidative phosphorylation
Electron transport chain
Nicotinamide adenine dinucleotide

Campbell's Biology, 9e (Reece et al.) Chapter 9 Cellular Respiration and Fermentation This is one of the most challenging chapters for students to master. Many students become overwhelmed and confused by the complexity of the pathways, with the multitude of intermediate compounds, enzymes, and processes. The vast majority of the questions in this chapter address central concepts rather than details of these pathways. Other questions have accompanying figures that provide details for reference and ask students to interpret or use these models. Overall, the emphases are on the inputs and outputs of each pathway, the relationships among these pathways, the cellular locations, redox as a central principle in respiration, and chemiosmosis. Multiple-Choice Questions

exam 1

Subject: 
Biology
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Biology
cellular respiration
Outline of cell biology
Glycolysis
metabolism
biochemistry
Oxidative phosphorylation
Citric acid cycle
cell
Lipid
Glucose
Nicotinamide adenine dinucleotide
health

Introduction to Cell Biology Name: September 30, 2010 Student ID: Exam I - Version 1 Section 1: True and False (3 points each). 1. A virus is a living organism. A) True B) False 2. The cytoskeleton is made up of actin filaments, microtubules, and intermediate filaments. A) True B) False 3. Noncovalent bonds are too weak to influence the three dimensional structure of macromolecules. A) True B) False 4. The chemical properties of amino acid side chains include charged, uncharged polar, and nonpolar. A) True B) False 5. The mitochondria use molecular oxygen to produce H2O and ATP. A) True B) False

bio PS soln

Subject: 
Biology
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Biology
Gene expression
biochemistry
Lac operon
Isopropyl β-D-1-thiogalactopyranoside
Lac repressor
Beta-galactosidase
Activator
Allolactose
Repressor
X-gal
Operon
health

Solutions to Practice Problems for Molecular Biology, Session 5: Gene Regulation and the Lac Operon ? ? Question 1 ? ? ? a) How does lactose (allolactose) promote transcription of LacZ? 1) Lactose binds to the polymerase and increases efficiency. 2) Lactose binds to a repressor protein, and alters its conformation to prevent it from binding to the DNA and interfering with the binding of RNA polymerase. 3) Lactose binds to an activator protein, which can then help the RNA polymerase bind to the promoter and begin transcription. 4) Lactose prevents premature termination of transcription by directly binding to and bending the DNA. Solution: 2) Lactose binds to a repressor protein, and alters its conformation to prevent it from binding to the DNA

bio PS

Subject: 
Biology
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Biology
Gene expression
biochemistry
Lac operon
Isopropyl β-D-1-thiogalactopyranoside
Beta-galactosidase
Lac repressor
Allolactose
Activator
X-gal
Repressor
Operon
health

Practice Problems for Molecular Biology, Session 5: Gene Regulation and the Lac Operon ? ? Question 1 ? ? ? a) How does lactose (allolactose) promote transcription of LacZ? 1) Lactose binds to the polymerase and increases efficiency. 2) Lactose binds to a repressor protein, and alters its conformation to prevent it from binding to the DNA and interfering with the binding of RNA polymerase. 3) Lactose binds to an activator protein, which can then help the RNA polymerase bind to the promoter and begin transcription. 4) Lactose prevents premature termination of transcription by directly binding to and bending the DNA. b) What molecule is used to signal low glucose levels to the Lac operon regulatory system? 1) Cyclic AMP 2) Calcium 3) Lactose

bio diagram

Subject: 
Biology
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Gene expression
Biology
biochemistry
Lac operon
Activator
Repressor
Lac repressor
Operator
Operon
Promoter
Regulation of gene expression
Messenger RNA

glucose lactose operator (repressor binding site) PromoterZYA lacZ lacY lacAcrp lacI repressor active activator inactive PromoterIPromotercrp + - mRNA mRNA activator binding site polymerase RNA polymerase RNA operator (repressor binding site) PromoterZYA lacZ lacY lacAcrp lacI repressor active repressor lactose inactive activator inactive cAMP activator active PromoterIPromotercrp mRNA mRNA mRNA LacZ (?gal) LacY LacA activator binding site polymerase RNA polymerase RNA repressor active can metabolize lactose!cAMP + - + lactose + cAMP activator active polymerase RNA DNA DNA The lac operon: a model of gene regulation in E. coli MIT OpenCourseWare http://ocw.mit.edu 7.01SC Fundamentals of Biology Fall 2011

Campbell AP Bio Chapter 17

Subject: 
Biology
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Biology
Genetics
biochemistry
Gene expression
RNA
Protein biosynthesis
Molecular biology
Molecular genetics
Translation
Messenger RNA
RNA polymerase
Genetic code
health

LECTURE PRESENTATIONS For CAMPBELL BIOLOGY, NINTH EDITION Jane B. Reece, Lisa A. Urry, Michael L. Cain, Steven A. Wasserman, Peter V. Minorsky, Robert B. Jackson ? 2011 Pearson Education, Inc. Lectures by Erin Barley Kathleen Fitzpatrick From Gene to Protein Chapter 17 Overview: The Flow of Genetic Information ? The information content of DNA is in the form of specific sequences of nucleotides ? The DNA inherited by an organism leads to specific traits by dictating the synthesis of proteins ? Proteins are the links between genotype and phenotype ? Gene expression, the process by which DNA directs protein synthesis, includes two stages: transcription and translation ? 2011 Pearson Education, Inc. Concept 17.1: Genes specify proteins via

Nutrition and Enzymes Powerpoint

Subject: 
Biology
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Biology
Chemistry
nutrition
metabolism
Enzyme
Cell membrane
Hydrolysis
Glucose
Polysaccharide
Lipid
Carbohydrate
biochemistry
health

Nutrition In order for the human body to be healthy and resistant to disease, good nutrition is required. All living things are made of chemicals. In order to grow, develop and maintain bodily structures and functions, specific chemicals must be acquired from the food we eat. In a sense, we are what we eat. Nutrients can be divided into the following categories: Nutrients Overview Carbohydrates ? sugar based molecules that are metabolized for energy in cellular respiration and make up the structural components of plant cell walls. Lipids ? fat based molecules that store large quantities of energy. These molecules also make up the structure of cell membranes.

Chapter 9 Practise test

Subject: 
Algebra
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Biology
biochemistry
cellular respiration
Chemistry
metabolism
Exercise physiology
Metabolic pathways
Plant physiology
Glycolysis
Pyruvic acid
Fermentation
Electron transport chain

BIOLOGY: Chapter 9-Cellular Respiration Multiple Choice Identify the letter of the choice that best completes the statement or answers the question. ____ 1. Which of the following is the correct sequence of events in cellular respiration? a. glycolysis ? fermentation ? Krebs cycle b. Krebs cycle ? electron transport ? glycolysis c. glycolysis ? Krebs cycle ? electron transport d. Krebs cycle ? glycolysis ? electron transport ____ 2. Which of the following is released during cellular respiration? a. oxygen b. air c. energy d. lactic acid ____ 3. Cellular respiration uses one molecule of glucose to produce a. 2 ATP molecules. b. 34 ATP molecules. c. 36 ATP molecules. d. 38 ATP molecules.

Photosynthesis Powerpoint

Subject: 
Biology
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Biology
Photosynthesis
Chemistry
biochemistry
Photosystem
Light-dependent reactions
Thylakoid
Photophosphorylation
Chemiosmosis
Electron transport chain
Stroma
Chloroplast
Technology

Photosynthesis Energy Transformations ATP is the energy molecule used in all living things, so supplies must be constantly replenished. energy must be added to make ATP, thus ATP formation is an endergonic reaction. ADP + P + energy ---? ATP the addition of a phosphate molecule to ATP is called phosphorylation ATP ---? ADP + P + energy the removal of a phosphate molecule from ATP gives off energy and is called dephosphorylation Electron Transport System (ETS) is the means by which energy production occurs within cells. It is a series of progressively stronger electron acceptors. Each time an electron is transported, energy is either released or absorbed. This is how most of the ATP in plants and animals is formed Redox Reactions

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