In the diagram below, the plane drawn behind the peptide bond indicates the:   

A) absence of rotation around the C—N bond because of its partial double-bond character.

B) plane of rotation around the Ca—N bond.

C) region of steric hindrance determined by the large C=O group.

D) region of the peptide bond that contributes to a Ramachandran plot.

 Which of the following best represents the backbone arrangement of two peptide bonds?

#Question id: 10935

#Unit 1. Molecules and their Interaction Relevant to Biology

The pH at which imidazole of histidine ring will be protonated………….. and imine group of proline will be deprotonated…………….

#Question id: 10936

#Unit 1. Molecules and their Interaction Relevant to Biology

Which type of chemical bonds are required to produce an absorption spectrum in UV-visible region? the molecule must contain

#Question id: 10937

#Unit 1. Molecules and their Interaction Relevant to Biology

The pH at which net charge of a molecule become zero the point known as

#Question id: 10938

#Unit 7. System Physiology – Animal

A 45-year-old woman developed fatigue in July and had blood counts that were reported to be normal. She was hospitalized because of a very severe headache in December, and was found to have a blood pressure of 175/90. Her laboratory values were as follows: hemoglobin (8.3 g/dL), RBC count (2.2 × 10^6/μl), Hct (23%), MCV (89 fL), WBCs (5100/μl), platelets (262 × 10^3/μl), and reticulocyte count 0.8%. What is the diagnosis for this patient?

#Question id: 10939

#Unit 7. System Physiology – Animal

After a person is placed in an atmosphere with low oxygen, how long does it take before there are increased numbers of reticulocytes?

#Question id: 10940

#Unit 7. System Physiology – Animal

Adhesion of white blood cells to the endothelium is