(a) Outline the two stage process of genotoxic carcinogenesis. (3 marks) (b) Explain why benzo[a]pyrene (structure...
(a) Briefly outline the two stages of chemical carcinogenesis. (4 marks) (b) What is the difference between a carcinogen and a mutagen? (1 mark) (@) Outline a method used to test for mutagenicity. (3 marks) (d) Define the term 'non-genotoxic carcinogen'. (2 marks)
Question 2 (3 marks) Explain why the process in the following equation will NOT produce the cis alcohol product shown. Write an equation to show what method would produce the desired alcohol. OH 1. mCPBA 2. H30* OH
a) Outline the objectives of management accounting (3 Marks) b) Assume that a certain process has an 95% learning curve effect and the first unit took 4000hrs to produce. Required: i) Compute the number of hours required to produce the first 34 units (3 Marks) ii) Compute the number of hours required to produce 34th unit. (2 Marks) iii) Assume that the wage rate is Kshs.100 per hour, compute the Labor cost of producing the last 16 units...
20 Marks) Question 3 a) The structure of proteins is described at four levels: primary, secondary, tertiary and quaternary Briefly explain what is referred to by each of these terms. Why are these distinctions useful? [5 marks] b) Each level of protein structure is stabilised by chemical bonds and interactions: List the bonds and/or effects primarily responsible for stabilising each level of structure. [5 marks] c) The illustration below shows a molecule of haemoglobin. Describe TWO (2) aspects of haemoglobin...
Question 3: A problem with analagous mathematical structure to electrostatics (12 marks) In the static (i.e. time-independent) case, the temperature throughout a material can be described by the scalar-valued function T(x, y, z). In addition, the flow of heat can be described by the vector-valued function h(x, y, z), the magnitude of which indicates the amount of heat energy that flows per unit area per unit time and the direction of which is that of the heat flow. (a) (2...
i need help with c and d but explain why Question 1 (10 marks). Assembly A model consists of two 1D trusses with dimensions as given in Figure 1. Element 1 runs angle, connecting parallel to the x-axis, connecting node 1 and 2. Element 2 is running at an node 1 and 3. Node 1 has an applied force in the negative y-direction. Node 1 can only in y-direction, while nodes 2 and 3 are fixed in both x and...
accordingly answer and i pt): Polymers and Monomers. Read each question chemical structure, in a oymer chemical structure based on the polymer name and provide the monomer unit chemical structure, in addition. Lastly applications. An example answer is provided as guidance. , provide an example of how the polymers are utilized in (bio)engineering Polymer Chemical Structure Polymer Full Name and Abbreviation Usage Example for Monomer Unit Structure(s) _ _pt per box) pt per box) pt per box) Nucleic Acid (DNA)...
please answer all that you can 1. You have genetically engineered green fluorescent protein (GFP) containing a KDEL sequence (GFP-KDEL). When GFP-KDEL is expressed in normal human fibroblasts and examined using fluorescence microscopy, the fluorescence appears diffuse across the cytoplasm. How would you explain this observations given that KDEL is supposed to be an ER-specific sorting sequence? A. This engineered GFP would not have a hydrophobic signal sequence to get it into the RER in the first place. B. The...
Multiple-Choice Questions (worth two points each) 1. Which of the following describes the process in which one adopts patterns of behavior that lead to greater life satisfaction? A. wellness B. health C. social determination D. self-efficacy 2. The Stages of Change Model of health behavior change emphasizes that A. change happens as a process. B. people change only when faced with an illness. C. change occurs only when the environment supports it. D. changes are more effective when based on...
Separating a Mixture, Recrystallization, pre-lab assignment could you also explain why you chose that substance for the empty spaces and question marks EXPERIMENT 4 Pre-Lab Assignment Separating a Mixture, Recrystalliration Name Date 1. Complete the following flowchart which shows how to separate a mixture of sand, sodium chloride and acetanilide. Notice that after a separation process (a down arrow) the filtered solids are shown on the left and the filtrate (the liquid) is shown on the right. The terminal step...