Ask Question, Ask an Expert


Ask Chemistry Expert

Answer the following problems

problem1)a) What will be the sequence of separation of the organelles, ribosomes, nucleus and mitochondria in a tissue homogenate when subjected to centrifugation. describe your answer.

b) How are peroxisomes and lysosomes generated in a cell?

c) Briefly describe different modes through which cell membrane controls the transport of ingoing and outgoing molecules?

problem2)a) What are reducing sugars? Sucrose is made up of two reducing sugars however it does not show the property of a reducing sugar. describe.

b) A fat has low iodine number and a high saponification number. What do you inferform that? What are essential fatty acids and why are they essential?

problem3)a) Draw the structure of a dinucleotide of adenosine – 5’- phosphate and uridine- 5’-phosphate.

b) In which process of protein biosynthesis, t-RNA is involved? Illustrate the gross structural features of t-RNA. Indicate the different regions.

c) prepare a brief note on the various forms of DNA.

problem4)a) Briefly describe the four ways by which enzymes can lower the activation energy.

b) What is optimal pH? How can a change in pH render an enzyme inactive?

problem5)a) Name the vitamin whose coenzyme is unknown. What is the significance of this enzyme in our diet?

b) Why is calcitriol classified as a hormone?

c) What is the difference between macrominerals and trace elements? prepare the major functions of any four trace elements?

problem6)a) How is the standard free energy for chemical reactions different form the standard free energy for biochemical reactions?

b) Determine the value of free energy for a reaction when Keq is 1.0 and for another reaction where Keq is 10.

c) With the help of the ex describe the importance of coupling in biological reactions.

problem7a) Standard free energy change alone could not predict the direction of a biochemical reaction. Comment.

b) Enlist all enzymes involved in glycolysis and prepare type of reaction they catalyse.

problem8)a) What is meant by respiratory control? How is the rate of flow of electrons through the electron transport chain regulated?

b) Why are chlorophyll molecules coloured? What are the other types of light absorbing substances in plants and how they are important?

problem9)a) Compare function of RNA polymerase with DNA polymerase. How is transcription terminated?

b) What are the components of initiation complex during protein biosynthesis in E.coli? How does the elongation of chain take place?

problem10a) describe genetic engineering? Discuss its importance to mankind.

b) Name various types of antibodies. What are the gross structural features of an antibody molecule? Discuss any one mechanism by which antibodies interact with antigens.

Chemistry, Academics

  • Category:- Chemistry
  • Reference No.:- M92871
  • Price:- $50

Priced at Now at $50, Verified Solution

Have any Question? 

Related Questions in Chemistry

Assume that coal is pure carbon with a density of 1280 kgm3

Assume that coal is pure carbon with a density of 1280 kg/m3 and that the particle is spherical with an initial diameter of 0.015 cm. Air exists several diameters away 1) Nco= ____Noxygen 2) The more fraction of oxygen a ...

Potassium and sodium chloride are similar in charge and

Potassium and sodium chloride are similar in charge and they both have the same anion. When comparing sodium chloride (36 g / 100 mL at 0 oC) and potassium chloride, which has a higher solubility at 0 oC?

A 400g sample of an ideal gas occupies 124l at 23 degrees

A 4.00g sample of an ideal gas occupies 1.24L at 23 degrees Celcius and 1.12bar. What will be its volume at 14 degrees Celcius and 1.50bar?

Question 1this is a tandem ms of a tryptic peptide the mass

Question 1: This is a tandem MS of a tryptic peptide. The mass of the intact peptide is 1569.692 Da. a. There are two immonium ions labelled with their mass-to-charge ratio in the spectrum. Label the signals with their s ...

Aim - to understand the fundamentals of atomic structure

Aim - To understand the fundamentals of atomic structure, chemical bonding, periodic tableandits application in engineering problems - Objective - Observing and explaining the reasons of engineering chemistry related pro ...

If it is considered that drinking 800 ml of water per day

If it is considered that drinking 800 mL of water per day containing an arsenic concentration equal to the US EPA maximum contaminant level (MCL), delivers the dose to an adult that corresponds to a 1 in 10,000 excess ri ...

How many seconds will be required to produce 10 g of

How many seconds will be required to produce 1.0 g of chromium metal by the electrolysis of a Cr(NO3)3 solution using a current of 3.0 A? Could someone please help me with the work for this.

For the reaction between permanganate ion and sufite ion in

For the reaction between permanganate ion and sufite ion in basic solution, the unbalanced equation is: MnO 4 -  + SO 3 2-   MnO 2  + SO 4 2- When this equation is balanced using the smallest whole number coefficients po ...

Crbonic acid h2co3 is a diprotic acid withka1

Carbonic acid (H2CO3) is a diprotic acid withKa1 = 4.2×10-7and Ka2 = 4.8×10-11. Theion product for water is Kw = 1.0 × 10-14. What is the carbonate ion concentration[CO2-3] in a 0.037 M carbonic acid solution?

1 perchloric acid is either a broslashnsted-lowry acid or a

1. Perchloric acid is either a Brønsted-Lowry acid or a Brønsted-Lowry base. If it is an acid, what is it's conjugate base? On the other hand, if it is a base what is it's conjugate acid? 2. Phosphate ion is either a Brø ...

  • 4,153,160 Questions Asked
  • 13,132 Experts
  • 2,558,936 Questions Answered

Ask Experts for help!!

Looking for Assignment Help?

Start excelling in your Courses, Get help with Assignment

Write us your full requirement for evaluation and you will receive response within 20 minutes turnaround time.

Ask Now Help with Problems, Get a Best Answer

WalMart Identification of theory and critical discussion

Drawing on the prescribed text and/or relevant academic literature, produce a paper which discusses the nature of group

Section onea in an atwood machine suppose two objects of

SECTION ONE (a) In an Atwood Machine, suppose two objects of unequal mass are hung vertically over a frictionless

Part 1you work in hr for a company that operates a factory

Part 1: You work in HR for a company that operates a factory manufacturing fiberglass. There are several hundred empl

Details on advanced accounting paperthis paper is intended

DETAILS ON ADVANCED ACCOUNTING PAPER This paper is intended for students to apply the theoretical knowledge around ac

Create a provider database and related reports and queries

Create a provider database and related reports and queries to capture contact information for potential PC component pro