Mechanical barriers provide a first line of defence against insect pests and pathogens, these mechanical barriers developed by plants;

COLUMN A	COLUMN B
A. Thorns	i) It can be found on the stem and petioles of roses and are formed by the epidermis
B. Spines	ii) Found on a lemon tree (Citrus sp.) are modified branches, as can be seen by their position in the axil of a leaf
C. Prickles	iii) Found on shoot and leaves of tomato (Solanum lycopersicum) are derived from epidermal cells
D. Trichomes	iv) which are characteristic of cacti (Opuntia spp.) in the New World, are modified leaves

Match correctly following combination of barrier developed by plants ;

#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