MCQs For NCERT Class 11 Biology Chapter 7 Structural Organisation in Animals

Please refer to the MCQ Questions for Class 11 Biology Chapter 7 Structural Organisation in Animals with Answers. The following Structural Organisation in Animals Class 11 Biology MCQ Questions have been designed based on the latest syllabus and examination pattern for Class 11. Our experts have designed MCQ Questions for Class 11 Biology with Answers for all chapters in your NCERT Class 11 Biology book.

Structural Organisation in Animals Class 11 MCQ Questions with Answers

See below Structural Organisation in Animals Class 11 Biology MCQ Questions, solve the questions and compare your answers with the solutions provided below.

Question. Mast cells secrete   
(a) haemoglobin
(b) hippurin
(c) myoglobin
(d) histamine.

Question. Formation of cartilage bones involves   
(a) deposition of bony matter by osteoblasts and resorption by chondroclasts
(b) deposition of bony matter by osteoclasts
(c) deposition of bony matter by osteoclasts only
(d) deposition of bony matter by osteoblasts only.

Question. What happens if bone of frog is kept in dilute hydrochloric acid?   
(a) Will become flexible
(b) Will turn black
(c) Will break into pieces
(d) Will shrink

Question. The roof of the cranium of frog is formed by   
(a) frontoparietal
(b) orbitosphenoid
(c) parasphenoid
(d) alisphenoid.

Question. Characteristics of smooth muscle fibres are   
(a) spindle-shaped, unbranched, nonstriated, uninucleate and involuntary
(b) spindle-shaped, unbranched, unstriped,multinucleate and involuntary
(c) cylindrical, unbranched, unstriped,multinucleate and involuntary
(d) cylindrical, unbranched, striated, multinucleate and voluntary.

Question. Haversian canals occur in   
(a) humerus
(b) pubis
(c) scapula
(d) clavicle.

Question. Histamine secreting cells are found in   
(a) connective tissues
(b) lungs
(c) muscular tissue
(d) nervous tissue.

Question. Mineral found in red pigment of vertebrate blood is   
(a) magnesium
(b) iron
(c) calcium
(d) copper.

Question. Which one of the following is correct pairing of a body part and the kind of muscle tissue that moves it? 
(a) Biceps of upper arm – Smo o t h mu s c l e fibres
(b) Abdominal wall – Smooth muscle
(c) Iris – Involuntary smooth muscle
(d) Heart wall – Involuntary unstriated muscle

Question. The epithelial tissue present on the inner surface of bronchioles and Fallopian tubes is   
(a) glandular
(b) ciliated
(c) squamous
(d) cuboidal.

Question. Pheretima and its close relatives derive nourishment from   
(a) sugarcane roots
(b) decaying fallen leaves and soil organic matter
(c) soil insects
(d) small pieces of fresh fallen leaves of maize, etc.

Question. Consider the following four statements   
(A–D) related to the common frog Rana tigrina, and select the correct option stating which ones are true (T) and which ones are false (F).   
Statements:
A. On dry land it would die due to lack of O2 if its mouth is forcibly kept closed for a few days.
B. It has four-chambered heart.
C. On dry land it turns uricotelic from ureotelic.
D. Its life-history is carried out in pond water.
A B C D
(a) T F F T
(b) T T F F
(c) F F T T
(d) F T T F 

Question. One very special feature in the earthworm (Pheretima) is that   
(a) fertilization of eggs occurs inside the body
(b) the typhlosole greatly increases the effective absorption area of the digested food in the intestine
(c) the S-shaped setae embedded in the integument are the defensive weapons used against the enemies
(d) it has a long dorsal tubular heart.

Question. Which one of the following correctly describes the location of some body parts in the earthworm Pheretima?   
(a) Four pairs of spermathecae in 4th-7th segments
(b) One pair of ovaries attached at intersegmental septum of 14th and 15th segments
(c) Two pairs of testes in 10th and 11th segments
(d) Two pairs of accessory glands in 16th-18th segments

Question. If a live earthworm is pricked with a needle on its outer surface without damaging its gut, the fluid that comes out is   
(a) coelomic fluid
(b) haemolymph
(c) slimy mucus
(d) excretory fluid.

Question. Earthworm possesses hearts   
(a) 6 pairs
(b) 4 pairs
(c) 2 pairs
(d) 1.

Question. Blood of Pheretima is   
(a) blue with haemocyanin in corpuscles
(b) blue with haemocyanin in plasma
(c) red with haemoglobin in corpuscles
(d) red with haemoglobin in plasma.

Question. Which of the following happens in the common cockroach?   
(a) Malpighian tubules are excretory organs projecting out from the colon.
(b) Oxygen is transported by haemoglobin in blood.
(c) Nitrogenous excretory product is urea.
(d) The food is ground by mandibles and gizzard.

Question. Assertion (A) : Periplaneta americana is nocturnal, omnivorous, household pest.   
Reason (R) : It is because it acts as scavenger.
(a) A is true but R is false.
(b) A is false but R is true.
(c) Both A and R are true and R is correct explanation of A.
(d) Both A and R are true but R is not correct explanation of A.

Question. Which of the following features is not present in Periplaneta americana?   
(a) Exoskeleton composed of N-acetylglucosamine
(b) Metamerically segmented body
(c) Schizocoelom as body cavity
(d) Indeterminate and radial cleavage during embryonic development  

Question. Which one of the following structures in Pheretima is correctly matched with its function?   
(a) Clitellum – Secretes cocoon
(b) Gizzard – Absorbs digested food
(c) Setae – Defence against predators
(d) Typhlosole – Storage of extra nutrients

Question. Pheretima posthuma is highly useful as   
(a) their burrows make the soil loose
(b) they make the soil porous, leave their castings and take organic debris in the soil
(c) they are used as fish meal
(d) they kill the birds due to biomagnification of chlorinated hydrocarbons.

Question. Earthworms are   
(a) useful
(b) harmful
(c) more useful than harmful
(d) more harmful.

Question. Photoreceptors of earthworm occur on   
(a) clitellum
(b) many eyes
(c) dorsal surface
(d) lateral sides.

Question. In male cockroaches, sperms are stored in which part of the reproductive system?   
(a) Seminal vesicles
(b) Mushroom glands
(c) Testes
(d) Vas deferens

Question. What external changes are visible after the last moult of a cockroach nymph?   
(a) Both forewings and hindwings develop
(b) Labium develops
(c) Mandibles become harder
(d) Anal cerci develop

Question. Select the correct option with respect to cockroaches.   
(a) Malpighian tubules convert nitrogenous wastes into urea.
(b) Males bear short anal styles not present in females.
(c) Nervous system comprises of a dorsal nerve cord and ten pairs of ganglia.
(d) The forewings are tegmina which are used in flight.

Question. Which one of the following is one of the paths followed by air or O2 during respiration in the adult male Periplaneta americana as it enters the animal body?   
(a) Spiracle in metathorax, trachea, tracheoles,oxygen diffuses into cells
(b) Mouth, bronchial tube, trachea, oxygen enters cells
(c) Spiracles in prothorax, tracheoles, trachea, oxygen diffuses into cells
(d) Hypopharynx, mouth, pharynx, trachea, tissues

Question. In frog, the surface of attachment of tongue is   
(a) pterygoid
(b) hyoid apparatus
(c) parasphenoid
(d) palatine.

Question. In frog, “fenestra ovalis” is   
(a) the communication between the pharynx and the tympanic cavity
(b) the external opening of the tympanic cavity which is covered by the tympanic membrane
(c) the air filled cavity of the middle ear
(d) the opening in the auditory capsule which separates the middle ear from the internal ear.

Question. The kidney of an adult frog is   
(a) metanephros
(b) opisthonephros
(c) pronephros
(d) mesonephros.

Question. Select the correct statement from the ones given below with respect to Periplaneta americana.   
(a) Nervous system located dorsally, consists of segmentally arranged ganglia joined by a pair of longitudinal connectives.
(b) Males bear a pair of short thread like anal styles.
(c) There are 16 very long Malpighian tubules present at the junctions of midgut and hindgut.
(d) Grinding of food is carried out only by the mouth parts.

Question. Male and female cockroaches can be distinguished externally through   
(a) anal styles in male
(b) anal cerci in female
(c) anal style and antennae in females
(d) both (b) and (c).

Question. Select the correct route for the passage of sperms in male frogs.   
(a) Testes → Vasa efferentia → Kidney → Seminal vesicle → Urinogenital duct → Cloaca
(b) Testes → Vasa efferentia → Bidder’s canal → Ureter → Cloaca
(c) Testes → Vasa efferentia → Kidney → Bidder’s canal → Urinogenital duct → Cloaca
(d) Testes → Bidder’s canal → Kidney → Vasa efferentia → Urinogenital duct → Cloaca

Question. Frog’s heart when taken out of the body continues to beat for sometime.   
Select the best option from the following statements.
(1) Frog is a poikilotherm.
(2) Frog does not have any coronary circulation.
(3) Heart is “myogenic” in nature.
(4) Heart is autoexcitable.
(a) Only (4) (b) (1) and (2)
(c) (3) and (4) (d) Only (3)

Question. Compared to those of humans, the erythrocytes in frog are   
(a) without nucleus but with haemoglobin
(b) nucleated and with haemoglobin
(c) very much smaller and fewer
(d) nucleated and without haemoglobin.

Question. Select the correct sequence of organs in the alimentary canal of cockroach starting from mouth.   
(a) Pharynx → Oesophagus → Ileum →Crop → Gizzard → Colon → Rectum
(b) Pharynx → Oesophagus → Crop → Gizzard → Ileum → Colon → Rectum
(c) Pharynx → Oesophagus → Gizzard → Crop → Ileum → Colon → Rectum
(d) Pharynx → Oesophagus → Gizzard → Ileum → Crop → Colon → Rectum

Question. If the head of cockroach is removed, it may live for few days because   
(a) the supra-oesophageal ganglia of the cockroach are situated in ventral part of abdomen
(b) the cockroach does not have nervous system
(c) the head holds a small proportion of a nervous system while the rest is situated along the ventral part of its body
(d) the head holds a 1/3rd of a nervous system while the rest is situated along the dorsal part of its body.

Question. Addition of a trace of thyroxine or iodine in water containing tadpoles will   
(a) keep them in larval stage
(b) hasten their metamorphosis
(c) slow down their metamorphosis
(d) kill the tadpoles.

Question. Which of the following features is used to identify a male cockroach from a female cockroach?   
(a) Presence of a boat-shaped sternum on the 9th abdominal segment
(b) Presence of caudal styles
(c) Forewings with darker tegmina
(d) Presence of anal cerci