About the Jackfruit

JAYAKUMARI T.R.

1. Which of the following is considered the largest tree-borne fruit? 18. What is the club-shaped, massive structure at the centre of a) Pumpkin b) Watermelon a jackfruit known botanically? c) Jackfruit d) Breadfruit a) Thickened peduncle b) Thickened pedicel Knowledge c) Fleshy petiole d) Fleshy perianth

2. Where did jackfruit originate? a) West Indies b) Indian peninsula 19. Which floral part transforms into the fleshy and juicy pulp of c) Brazil d) Malayan forests jackfruit bulb? a) Corolla b) Perianth 3. Which is the natural habitat of the Jackfruit? c) Calyx d) Pedicel a) Rainforests b) Deserts c) Grasslands d) Deciduous forests 20. What do the short, flattened, ribbon-like structures in between the bulbs represent? 4. Name the family to which the jackfruit belongs? a) Sterile flowers b) Hairy appendages a) Myrtaceae b) Moraceae c) Stipules d) Stipuloids c) Urticaceae d) Clusiaceae 21. The leathery, loose bag around the seed is actually the

Test Your Test 5. What is the genus name of the jack? transformed a) Artocarpus b) Dipterocarpus a) Outer integument b) Inner integument c) Pterocarpus d) Morus c) Ovary wall d) Calyx 6. Which of the following is the botanical name of the jack? 22. What is the major constituent of the sticky latex in jack? a) Artocarpus heterophyllus b) Artocarpus heterophylla a) Rubber b) Tannins c) Artocarpus integrifolia d) All of these c) Lipids d) Resins 7. In which country the jackfruit tree is considered an invasive 23. Which stringed musical instrument is made from the wood species? of the Jack tree? a) Brazil b) Rio de Janeiro a) Violin b) Guitar c) Myanmar d) Indonesia c) Veena d) All of these 8. Which Indian emperor encouraged planting of Jack trees? 24. Which part of jackfruit tree yields a saffron dye for dying a) Tipu Sultan b) Ashoka the dress of Buddhist monks? c) Humayun d) Shahjahan a) Fallen yellow leaves b) Mature juicy fruit pulp 9. The name Jackfruit originated from the root word ‘Jaca’ in c) Rind of mature fruits d) Heart wood Portugese which itself took origin from a sound-a-like word in 25. What is the type of pollination in Jack trees? a) Malayalam b) Sinhalese a) Anemophily b) Ornithophily c) Tamil d) French c) Chiropteriphily d) All of these 10. What type of a tree is the jack? 26. How many cotyledons do jack beans contain? a) Annual b) Biennial a) Two equally sized ones b) A single large one c) Perennial d) Ephemeral c) A large one and a small one d) Any of these 11. Regarding flowering, Jackfruit tree is 27. Which country has Jackfruit as its national fruit? a) Monocarpic b) Polycarpic a) Sri Lanka b) Myanmar c) Geocarpic d) All of these c) Bangladesh d) Afghanistan 12. Name the inflorescence type in Jack tree. 28. Which state in India has declared Jackfruit as its state official a) Spike b) Raceme fruit? c) Panicle d) Catkin a) Tamil Nadu b) Maharashtra 13. What type of a fruit is jackfruit? c) West Bengal d) Kerala a) Simple fruit b) Aggregate fruit 29. Which type of propagation is preferred in Jack trees? c) Multiple fruit d) None of these a) Seed propagation b) budding 14. By what scientific name is the jackfruit called? c) Grafting d) Any of these a) Syconium b) Sorosis 30. The seed propagated plants do not behave true to type. c) Hypanthodium d) All these This is because, Jack tree is 15. The rind of jackfruit is formed by the fusion of all the a) Genetically pure b) Genetically impure a) Calyx of flowers b) Sterile flowers c) Cross pollinated d) Both b and c c) Bracts of flowers d) Tops of fertile and sterile flowers ANSWERS 16. On the rind, the polygonal, areola-like part with shortened 1. c 2. b 3. a 4. b 5. a 6. d 7. a 8. b spines represents the 9. a 10. c 11. b 12. a 13. c 14. b 15. d 16. a a) Stigmatic heads b) Anther lobes 17. b 18. a 19. b 20. a 21. c 22. d 23. c 24. d c) Sterile flowers d) None of these 25. a 26. c 27. c 28. d 29. a 30. d 17. Inside the jackfruit, the bulbs represent a) Individual flowers b) Individual fruits Contributed by Dr Jayakumari T.R., Associate Professor in Botany, H H The c) Fleshy peduncle d) Fleshy pedicels Maharaja’s Govt. College for Women, Thiruvananthapuram, Kerala-695014. SCIENCE REPORTER, OCTOBER 2011 40 Test Your Knowledge K.VENKATARAMAN

OSTEOLOGY

1. The vertebrae of mammals are 15. Keel in birds are extension of a) Amphicoelous b) Amphiplatyan a) Ribs b) Pectoral girdle c) Heterocoelous d) Procoelous c) Sternum d) Clavicle

2. Rat has seven cervical vertebrae, if so how many are there 16. Olecranon process is the extension of in the giraffe? a) Radius b) Ulna a) 7 b) Many c) Tibia d) Fibula

c) 10 d) 20 17. Number of false ribs in man 3. What is the name of the second vertebra? a) 5 b) 5 Pairs a) Atlas b) Axis c) 7 d) 7 Pairs

c) Pygostyle d) Urostyle 18. Foramen triossium is found in 4. The opening found in the posterior end of skull is the a) Frog b) Fish a) Foramen of Monro b) Foramen magnum c) Reptile d) Bird

c) Foramen triosseum d) Foramen panizza 19. Which is the wish bone? 5. What is cheek bone? a) Furcula b) Fibula a) Zygomatic arch b) Hyoid arch c) Patella d) Ribs

c) Mandibular arch d) Branchial arch 20. Name of the first digit in the hand 6. Jaw suspension in man is a) Finger b) Pollex a) Hyostylic b) Amphistylic c) Carpal d) Tarsal

c) Autodiastylic d) Craniostylic 21. Crocodile skull belongs to this type 7. Lower jaw of mammals consists of a) Parapsida b) Anapsida a) Articular & Angular b) Splenial & Coronoid c) Diapsida d) Synapsida

c) Angular & Surangular d) Only Dentary 22. Eliminate the odd bone 8. Columella auris is associated with a) Ilium b) Ischium a) Eye b) Ear c) Pubis d) Fibula

c) Nose d) Mouth 23. Turtle’s body is encased by a bony shell called 9. Eliminate the odd bone a) Plastron b) Carapace a) Scapula b) Coracoid c) Shield d) All the above

c) Acetabulum d) Clavicle 24. Average number of bones in adult human body is 10. Bones of the fore arm a) 200 b) 206 a) Tibia & Fibula b) Radius & Ulna c) 220 d) 320

c) Clavicle & Coracoid d) Ilium & Ischium 25. The fate of Quadrate bone in the evolution of ear 11. The smallest bone in human body is the ossicles a) Phallange b) Malleus a) Malleus b) Incus c) Incus d) Stapes c) Stapes d) Pinna

12. The longest bone in the human body is a) Femur b) Humerus ANSWERS c) Vertebra d) Sternum 1. b 2. a 3. b 4. b 5. a 6. d 7. d 8. b 9. c 10. b 11. d 12. a 13. a 14. c 15. c 16. b 13. Obturator foramen is associated with 17. b 18. d 19. a 20. b 21. c 22. d 23. b 24. b a) Pelvic girdle b) Pelvic limb 25. b c) Pectoral girdle d) Pectoral limb

14. Knee cap is also called Contributed by Dr. K. Venkataraman, Retd. Reader & Head, Department of a) Trochanter b) Astragalus Zoology, Madura College, A-T-2, Porkudam Apartments, Bypass Road, c) Patella d) Calcaneum Madurai-625010

41 SCIENCE REPORTER, OCTOBER 2011