Top 50 most important Questions and Answers on Structural Organisation in Animals. Structural Organisation in Animals Important Questions and Answers with FREE PDF are the most important part of Medical Entrance Exams like NEET, AIIMS, JIPMER and other Board Exams.
1 The blood of cockroach is colorless because
Answer: There is no respiratory pigment
2 Cockroach blood does not contain respiratory pigments, it means that
Answer: Oxygen reaches tissue through tracheoles
3 How many pairs of spiracles are found in cockroach
Answer: 2pairs in thorax and 8 pairs in abdomen
4 Earthworms are called ‘friends of farmers’ because
Answer: They make the soil porous, leave their castings and organic debris in the soil
5 Movement of coelomic fluid helps in locomotion of
6 In earthworm, septa are absent in
7 In earthworm oxygen carrying haemoglobin occurs in
8 The region of earthworm, which is forest of nephridia
9 Which one of the following is an oxygen carrying blood pigment of earthworm?
10 In frog, two phalenges occur in
11 Which type of tissue forms the inner of a blood vessel?
12 In which of the following, the plasma membrane of the epithelial lining is Modified in to microvilli?
13 The actively dividing layer of columnar cells in the epidermis of man is called as the
14 The outermost layer of skin called stratum corneum is composed of
Answer: Completely dead and keratinised cells
15 Which type of tissue forms glands?
16 Mostly the mammary glands are modified
17 Ligaments are made up of
Answer: White fibres and some yellow elastic fibres
18 The bone of a mammal contains Haversian canals, which are connected by transverse canals known as
19 Cardiac muscle is made up of branched fibres that are
Answer: Striated and not under voluntary control
20 The efferent process of neuron is known as
22 Which is characteristic of common cockroach species?
Answer: 13-chambered heart
23 Malpighian tubules of cockroach are found at the junction of
Answer: Mesenteron and proctodaeum
24 Collateral glands of cockroach help in
Answer:Formation of ootheca
25 Blood glands of pheretima occur in segments
26 Pharyngeal nephridia of earthworm occur in segments
27 Open circulatory system is not of physiological hindrance in cockroach because
Answer: Circulatory and respiratory systems are not connected
28 Number of eggs contained in an ootheca of cockroach is
29 Pericardial space in cockroach is regularly altered by muscles
30 What type of metamorphosis occurs in cockroach?
31 Schwann cells and nodes of Ranvier are found in
32 The plasma protein, which maintains the osmotic pressure of blood is
33 A bipolar neuron has
Answer: 1 dendron and 1 axon
34 Mast cells of connective tissue contain
Answer: Heparin and histamine
35 Metamerism is characteristic feature of phylum
36 Blood is red but but there are no red blood cells in
Answer: earthworm and leeches
37 Which of the following statements is true for pheretima?
Answer: in it copulation occurs in night in burrow during rainy season
38 In earthworm, setae are absent from
Answer: clitellum, first and last segments
39 Abdomen of cockroach has segments
40 First wing in cockroach is a hard leathery structure and is called
Answer: Tegmina attached to mesothorax
41 Which of the 2 parts in cockroach are fundamentally similar in structure?
42 In cockroach lower lip or labium refers to
43 Number of Malpighian tubules present in cockroach is
44 Three chambered heart of frog is not as proficient as four chambered human heart because
Answer: Oxygenated and deoxygenated bloods mix up
45 Chloragogen cells of pheretima are specialized for
46 Mating in earthworm occurs during
Answer: Night in rainy season
47 Structure present in man but absent in frog is
48 The glands present in skin of frog are
Answer:Mucous and poisonous
49 In frog, jelly around the eggs is deposited
50 The heart in cockroach is longitudinal beaded and there are
Answer: 3 chambers in thorax and 10 in abdomen
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