User:Sunil23879/sandbox

 --Sunil23879 (talk) 13:05, 11 November 2014 (UTC) 

1. External protective tissues of plants are (a) Cortex and epidermis (b) Pericycle and cortex (c) Epidermis and cork (d) Pericycle and cork Ans. (c) 2. Bulliform cells are present (a) In upper epidermis of dicot leaves (b) In lower epidermis of monocot leaves (c) In upper epidermis of monocot leaves (d) In dicot stem Ans. (c) 3. The youngest layer of secondary phloem in woody dicot stem is located (a) Just outside the vascular cambium (b) Just on the inner side of cambium (c) Between periderm and primary cortex (d) Just outside pith Ans. (a) 4. The wall of cork cells is mostly impregnated with (a) Cutin (b) Suberin (c) Lignin (d) Hemicellulose Ans. (b) 5. Cork cells are (a) Photosynthetic (b) Elongated and participate in movement (c) Meristematic (d) Dead Ans. (d) 6.Dendrochronology is the study of (a) Height of a tree (b) Age of a tree by counting the number of annual rings in the main stem (c) Diameter of a tree (d) Age of tree by counting the number of leaves in the main stem Ans. (b) 7. The best method to determine the age of tree is (a) To measure its diameter (b) To count the number of leaves (c) To count the number of annual rings in the main stem at the base (d) To measure its height Ans. (c) 8. If the sign was nailed to the side of a tree 5’ above the ground in 1997 how high would the sign be in 2007 if the tree grew 4” taller each year? (a) 5’ high (b) 8’ high (c) 4’ 8” (d) 9’4” Ans. (a) 9. Safranin stains which element of the tissues? (a) Starch elements (b) Lignified elements (c) Bast (d) Protein elements Ans. (b) 10. Which types of tissue form the thin surface for the gas exchange in the lungs? (a) Epithelial (b) Connective (c) Nervous (d) Muscle Ans. (a) 11. Endothelium of the inner surface of blood vessels in vertebrates is (a) Simple squamous epithelium (b) Columnar epithelium (c) Cuboidal epithelium (d) Ciliated cells Ans. (a) 12. The epithelium best adapted for abody surface subject to abrasion is (a) Simple squamous (b) stratified squamous (c) stratified columnar (d) Simple cuboidal Ans. (b) 13. In man thickest skin is found in• (a) Palm (b) Thigh (c) Sole (d) Thumb Ans. (c) 14. Which type of tissue forms glands? (a) Epithelial (b) Connective (c) Nervous (d) Muscle Ans. (a) 15. Sebaceous glands are found in (a) Dermis of skin of mammals (b) Epithelium of stomach of frog (c) Epithelium of intestine of frog (d) Epidermis of skin of mammals Ans. (a) 16. Which type of tissue forms the framework of the external ear? (a) Epithelial (b) Connective (c) Muscle (d) Nervous Ans. (b) 17. Wrinkling in old age is due to (a) Collagen (b) Myosin (c) Keratin (d) Actin Ans. (a) 18. Which one of the following directly helps in keeping the body warm? (a) Sweat glands (b) Adipose tissue (c) Connective tissue (d) Hairs Ans. (b) 19. The fibrous tissue, which connects the two bones, is (a) Connective tissue (b) Ligament (c) Tendon (d) Adipose tissue Ans. (b) 20. Tendon connects (a) Cartilage with muscles (b) Bone with muscles (c) Ligament with muscles (d) Bone with bone Ans. (b) 21. Bone forming cells are (a) Osteoblasts (b) Osteoclasts (c) Chondroblasts (d) Chondroclasts Ans. (a) 22. A man was brought up at sea level while his brother spent all his life at an altitude of 10,000 feet. The latter will have (a) More active bone marrow (b) Lower blood pressure (c) Less subdermal fat (d) More active sweat glands Ans. (a) 23. A bone is distinguished from cartilage by the presence of (a) Collagen (b) Lymph vessels (c) Blood vessels (d) Haversian canals Ans. (d) 24. Which one of these is a kind of tissue? (a) Lung (b) Kidney (c) Blood (d) Pancreas Ans. (c) 25. Nissl’s granules are found in cyton of nerve cells. These have affinity for basic dyes. The granules are made up of (a) Proteins (b) DNA (c) Amino acids (d) RNA Ans. (d) 26. In camel, erythrocytes are (a) Oval and nucleated (b) Circular, biconcave and nucleated (c) Oval and non-nucleated (d) Circular, biconcave, non-nucleated Ans. (b) 27. Iron in hemoglobin exists as (a) Unionized iron atom (b) Ferric ions only (c) Ferrous ions only (d) Ferric or ferrous ions depending upon the oxygenate state of the heme moiety Ans. (c) 28. Red cell count is carried out by (a) Haemocytometer (b) Haemoglobinometer (c) Sphygmomanometer (d) Electrocardiogram Ans. (a) 29. Striated muscles are found in (a) gall bladder (b) Wall of bronchi (c) Leg muscles (d) Lungs Ans. (c) 30. Triceps and biceps are examples of (a) Antagonistic muscles (b) Involuntary muscles (c) Sphincter muscles (d) Smooth muscles Ans. (a)