Class 11-Biology-chapter 7- Structural Organisation in Animals InstructionTotal Questions : 20Total time :20 minTotal Marks : 20 x 3 = 60 MarksEach Correct Question carries : 3 MarksEach incorrect Question Carries : -1 MarksEach Unattempted Question carry : 0 MarksBe careful On Negative Markings 1. One very special feature in the earthworm (Pheretima) is that It has a long dorsal tubular heart. The typhlosole greatly increases the effective absorption area of the digested food in the intestine The S-shaped setae embedded in the integument are the defensive weapons used against the enemies Fertilization of eggs occurs inside the body None 2. Choose the correct answer from the allternatives given.What is the anterior pair of wings called in cockroach? Sternum Elytra Tergum Cerci None 3. 7-8 finger like blind tubules open into anterior part of midgut of Cockroach. They are Hepatic caeca Malpighian tubules Intestinal caeca None of these None 4. Which of the following blood vessels in earthworm is both collecting as well as distributing? Ventral vessel Sub neural vessel Dorsal vessel Lateral oesophageal vessel None 5. Ocelli or fenestrae of Cockroach take part in Perception of light Perception of humidity Perception of temperature Sight None 6. Select the correct option:In the mouth parts of a cockroach, the labium forms _______ (i) while _____ (ii) acts as a tongue. (i)- upper lip; (ii)- hypopharynx (i)- lower lip; (ii)- maxilla (i)- lower lip; (ii)- hypopharynx (i)- upper lip; (ii)- maxilla None 7. In Pheretima, there are red coloured round bodies in 4th, 5th and 6th segments above the alimentary canal. They are believed to be involved in digestion respiration leucocyte production. reproduction None 8. Which pair of spiracles are borne dorsolaterally over the tergum instead of pleura Second abdominal First abdominal Second thoracic First thoracic None 9. In cocroach elytra are articulated to the tergites of Abdomen Mesothorax Prothorax Metathorax None 10. In voluntary muscle movement, which of the following process occurs only if ATP is present? Tropomyosin to bind to troponin Myosin becoming separated from actin Myosin to bind to actin Tropomyosin to become separated from troponin None 11. In the blood circulation of Pheretima, the blood collected by lateral oesophageal blood vessel flows into supra oesophageal blood vessels through Anterior loops and ring vessels Lateral hearts and commissural blood vessels Lateral hearts and anterior loops Lateral oesophageal hearts and ring vessels None 12. Select the correct option:Match column I with column II and select the correct option from the codes given below:Column I(Parts of alimentary canal of earthworm)Column II(Respective segments)(A) Buccal cavity(i) 1-3(B) Pharynx(ii) 3-4(C) Oesophagus(iii) 5-7(D) Gizzard(iv) 8-9(E) Stomach(v) 9-14(F) Intestine(vi) 15 to last(G) Typhlosole(vii) 26-35 A- (i); B- (ii); C- (iii); D- (iv); E- (v); F- (vi); G- (vii) A- (i); B- (iii); C- (ii); D- (v); E- (iv); F- (vii); G- (vi) A- (i); B- (iii); C- (ii); D- (iv); E- (v); F- (vii); G- (vi) A- (i); B- (ii); C- (iii); D- (v); E- (iv); F- (vi); G- (vii) None 13. Nephridiopores present over the body of earthworm belong to Pharyngeal nephridia Integumentary nephridia Peptonephridia Septal nephridia None 14. Typhlosole of Earthworm is a device for Crushing of food Extra secretion of digestive enzymes Slowing down passage of food Increasing absorptive area None 15. Which of the following statements is incorrect about the frog?(i) Eyes are bulged out and covered by a nicitating membrane that protects them while in water.(ii) On either side of the eyes a membranous tympanum (ear) receives sound signals.(iii) The hind limbs end in four digits and they are larger and muscular than fore limbs that end in five digits.(iv) Feet have webbed digits that help in swimming.(v) Frogs exhibit sexual dimorphism (ii) and (iii) (i) and (v) (iii) only (iv) only None 16. Match the following. Identify the correct match between Set-I and Set-II.Set-ISet-IIA) CaloreceptorsI) Cold receptorsB) ProprioceptorsII) Body surface receptorsC) FrigidoreceptorsIII) Heat receptorsD) ExteroceptorsIV) Receptors found in muscles A- I, B- II, C- III, D- IV A- III, B- IV, C- I, D- II A- III, B- IV, C- II, D- I A- IV, B- III, C- II, D- I None 17. Endocrine glands of insects which secrete juvenile hormone are Corpora albicans Corpora myecaena Corpora allata All the above None 18. Smooth muscles are found in all the sites mentioned below except: External muscle of the eye ball Uterus Oviduct Alimentary tract None 19. The body cells in cockroach discharge their nitrogenous waste in the haemolymph mainly in the form of Ammonia Urea Calcium carbonate Potassium urate None 20. Choose the correct answer from the allternatives given.How many pairs of spiracles are found in cockroach? 2 pairs in thorax and 8 pairs in abdomen 2 pairs in thorax and 6 pairs in abdomen 1 pair in thorax and 8 pairs in abdomen 3 pairs in thorax and 8 pairs in abdomen None Please Share This Share this content Opens in a new window Opens in a new window Opens in a new window Opens in a new window Opens in a new window Opens in a new window Opens in a new window Opens in a new window Opens in a new window Opens in a new window Leave a Reply Cancel replyCommentEnter your name or username to commentEnter your email address to commentEnter your website URL (optional) Save my name, email, and website in this browser for the next time I comment.