MCQ Practice Test -Chapter7-Structural Organisation In Animals

Instruction

Total Questions : 20

Total time :20 min

Total Marks : 20 x 3 = 60 Marks

Each Correct Question carries : 3 Marks

Each incorrect Question Carries : -1 Marks

Each Unattempted Question carry : 0 Marks

Be careful On Negative Markings

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

(iii) only

(ii) and (iii)

(iv) only

(i) and (v)

None

The body cells in cockroach discharge their nitrogenous waste in the haemolymph mainly in the form of

Calcium carbonate

Ammonia

Potassium urate

Urea

None

One very special feature in the earthworm (Pheretima) is that

It has a long dorsal tubular heart.

The S-shaped setae embedded in the integument are the defensive weapons used against the enemies

Fertilization of eggs occurs inside the body

The typhlosole greatly increases the effective absorption area of the digested food in the intestine

None

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- (v); E- (iv); F- (vi); G- (vii)

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)

None

Typhlosole of Earthworm is a device for

Increasing absorptive area

Slowing down passage of food

Extra secretion of digestive enzymes

Crushing of food

None

Match the following. Identify the correct match between Set-I and Set-II.

Set-I	Set-II
A) Caloreceptors	I) Cold receptors
B) Proprioceptors	II) Body surface receptors
C) Frigidoreceptors	III) Heat receptors
D) Exteroceptors	IV) Receptors found in muscles

A- IV, B- III, C- II, D- I

A- I, B- II, C- III, D- IV

A- III, B- IV, C- II, D- I

A- III, B- IV, C- I, D- II

None

Nephridiopores present over the body of earthworm belong to

Integumentary nephridia

Peptonephridia

Pharyngeal nephridia

Septal nephridia

None

Which pair of spiracles are borne dorsolaterally over the tergum instead of pleura

Second abdominal

First thoracic

First abdominal

Second thoracic

None

7-8 finger like blind tubules open into anterior part of midgut of Cockroach. They are

Malpighian tubules

Hepatic caeca

None of these

Intestinal caeca

None

10.

Smooth muscles are found in all the sites mentioned below except:

External muscle of the eye ball

Alimentary tract

Oviduct

Uterus

None

11.

In cocroach elytra are articulated to the tergites of

Mesothorax

Prothorax

Abdomen

Metathorax

None

12.

Endocrine glands of insects which secrete juvenile hormone are

Corpora myecaena

Corpora allata

All the above

Corpora albicans

None

13.

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)- upper lip; (ii)- maxilla

(i)- lower lip; (ii)- maxilla

(i)- lower lip; (ii)- hypopharynx

None

14.

Choose the correct answer from the allternatives given.

What is the anterior pair of wings called in cockroach?

Elytra

Tergum

Sternum

Cerci

None

15.

Ocelli or fenestrae of Cockroach take part in

Perception of light

Sight

Perception of temperature

Perception of humidity

None

16.

In the blood circulation of Pheretima, the blood collected by lateral oesophageal blood vessel flows into supra oesophageal blood vessels through

Lateral hearts and commissural blood vessels

Lateral hearts and anterior loops

Lateral oesophageal hearts and ring vessels

Anterior loops and ring vessels

None

17.

Choose the correct answer from the allternatives given.

How many pairs of spiracles are found in cockroach?

1 pair in thorax and 8 pairs in abdomen

2 pairs in thorax and 6 pairs in abdomen

2 pairs in thorax and 8 pairs in abdomen

3 pairs in thorax and 8 pairs in abdomen

None

18.

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

reproduction

leucocyte production.

None

19.

Which of the following blood vessels in earthworm is both collecting as well as distributing?

Ventral vessel

Lateral oesophageal vessel

Dorsal vessel

Sub neural vessel

None

20.

In voluntary muscle movement, which of the following process occurs only if ATP is present?

Myosin to bind to actin

Tropomyosin to become separated from troponin

Myosin becoming separated from actin

Tropomyosin to bind to troponin

None

Chapter 5 Morphology of Flowering Plants

Chapter6-Anatomy Of Flowering Plants

Chapter7-Structural Organisation In Animals

Instruction

Curriculum

Ncert – Class 11: Biology – Unit -2 -STRUCTURAL ORGANISATION IN PLANTS AND ANIMALS

Chapter 5 Morphology of Flowering Plants

Chapter6-Anatomy Of Flowering Plants

Chapter7-Structural Organisation In Animals

MCQ Practice Test -Chapter7-Structural Organisation In Animals

Instruction