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Free download in PDF Structural Organisation in Animals Objective Type Questions and Answers for competitive exams. These short objective type questions with answers are very important for Board exams as well as competitive exams like NEET, AIIMS, JIPMER etc. These short solved questions or quizzes are provided by Gkseries./p>
(1)
Which of the 2 parts in cockroach are fundamentally similar in structure?
[A]
Anal styles and labrum
[B]
Maxillae and legs
[C]
Mandibles and antennae
[D]
Wings and cerci
Answer: Maxillae and legs
(2)
In cockroach lower lip or labium refers to
[A]
Mentum
[B]
Submentum
[C]
First maxilla
[D]
Second maxilla
(3)
Number of Malpighian tubules present in cockroach is
[A]
60-70
[B]
80-90
[C]
100-150
[D]
200-250
(4)
Three chambered heart of frog is not as proficient as four chambered human heart because
[A]
Heart muscles are not strong
[B]
It does not hold enough blood
[C]
Ventricle does not pump blood properly
[D]
Oxygenated and deoxygenated bloods mix up
Answer: Oxygenated and deoxygenated bloods mix up
(5)
Chloragogen cells of pheretima are specialized for
[A]
Nutrition
[B]
Reproduction
[C]
Excretion
[D]
Respiration
(6)
Mating in earthworm occurs during
[A]
Night in rainy season
[B]
Night in water
[C]
Night in summer season
[D]
Day in rainy season
Answer: Night in rainy season
(7)
Structure present in man but absent in frog is
[A]
Salivary glands
[B]
Pancreas
[C]
Adrenal glands
[D]
Gall bladder
(8)
The glands present in skin of frog are
[A]
Mucous and poisonous
[B]
Sweat and mammary
[C]
Sweat and sebaceous
[D]
Sweat and mucous
Answer: Mucous and poisonous
(9)
In frog, jelly around the eggs is deposited
[A]
In water after fertilization
[B]
In water during fertilization
[C]
In the oviduct
[D]
In the ovary
(10)
The heart in cockroach is longitudinal beaded and there are
[A]
2 chambers in thorax and 11 in abdomen
[B]
3 chambers in thorax and 10 in abdomen
[C]
2 chambers in thorax and 10 in abdomen
[D]
3 chambers in thorax and 9 in abdomen
Answer: 3 chambers in thorax and 10 in abdomen
(11)
The blood of cockroach is colorless because
[A]
There is no respiratory pigment
[B]
Circulatory system is open type
[C]
Circulatory system is closed type
[D]
There are no salts in blood
Answer: There is no respiratory pigment
(12)
Cockroach blood does not contain respiratory pigments, it means that
[A]
Cockroach does not respire
[B]
Cockroach respire anaerobically
[C]
Oxygen reaches tissue through tracheoles
[D]
Oxygen passes to all the tissues through diffusion
Answer: Oxygen reaches tissue through tracheoles
(13)
How many pairs of spiracles are found in cockroach
[A]
3 pairs in thorax and 10 pairs in abdomen
[B]
2pairs in thorax and 8 pairs in abdomen
[C]
2 pairs in thorax and 6 pairs in abdomen
[D]
1 pair in thorax and 7 pairs in abdomen
Answer: 2pairs in thorax and 8 pairs in abdomen
(14)
Earthworms are called ‘friends of farmers’ because
[A]
They are used as fish meal
[B]
Their burrows make the soil loose
[C]
They kill the birds due to biomagnification of chlorinated hydrocarbons
[D]
They make the soil porous, leave their castings and organic debris in the soil
Answer: They make the soil porous, leave their castings and organic debris in the soil
(15)
Movement of coelomic fluid helps in locomotion of
[A]
Hydra
[B]
Frog
[C]
Starfish
[D]
earthworm
(16)
In earthworm, septa are absent in
[A]
first 4 segments
[B]
5/6,10/11
[C]
5/6,7/8
[D]
6/7,7/8
(17)
In earthworm oxygen carrying haemoglobin occurs in
[A]
Plasma
[B]
Corpuscles
[C]
Both corpuscles and plasma
[D]
The statement is wrong
(18)
The region of earthworm, which is forest of nephridia
[A]
Clitellar region
[B]
Pharyngeal region
[C]
Typhlosolar region
[D]
Intestinal region
(19)
Which one of the following is an oxygen carrying blood pigment of earthworm?
[A]
Haemocyanin
[B]
Haemoglobin
[C]
Haemoerythrin
[D]
chlorocruorin
(20)
In frog, two phalenges occur in
[A]
pollex
[B]
hallux
[C]
third finger
[D]
third toe
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