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Structural Organisation in Animals MCQs | Structural Organisation in Animals Objective Type Questions and Answers

Questions
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

Answer: Second maxilla
3 Number of Malpighian tubules present in cockroach is
A 60-70
B 80-90
C 100-150
D 200-250

Answer: 100-150
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

Answer: Excretion
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

Answer: Salivary glands
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

Answer: In the oviduct
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

Answer: 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

Answer:first 4 segments
17 In earthworm oxygen carrying haemoglobin occurs in
A Plasma
B Corpuscles
C Both corpuscles and plasma
D The statement is wrong

Answer: Plasma
18 The region of earthworm, which is forest of nephridia
A Clitellar region
B Pharyngeal region
C Typhlosolar region
D Intestinal region

Answer: Clitellar region
19 Which one of the following is an oxygen carrying blood pigment of earthworm?
A Haemocyanin
B Haemoglobin
C Haemoerythrin
D chlorocruorin

Answer: Haemoglobin
20 In frog, two phalenges occur in
A pollex
B hallux
C third finger
D third toe

Answer: hallux

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