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NEET • BIOLOGY • STRUCTURAL ORGANISATION IN ANIMALS
Structural organisation in animals practice · Mixed difficulty
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121
Hard
121 of 307
Understanding
+4 | -1
Cross fertilisation is favoured by
View answer and explanation
Correct option: D
None of these
Option D (None of these) is correct because the provided options (Neoteny, Metagenesis) do not directly favor cross-fertilization. Protandry and self-sterility are mechanisms that favor cross-fertilization.
122
Medium
122 of 307
Understanding
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Read the following types of connective tissues
[Areolar tissue, cartilage, bone, adipose tissue, and blood]
In the above, how many types of connective tissues are specialized tissues?
[Areolar tissue, cartilage, bone, adipose tissue, and blood]
In the above, how many types of connective tissues are specialized tissues?
View answer and explanation
Correct option: A
Three
Option A (Three) is correct because cartilage, bone, and blood are considered specialized connective tissues, while areolar and adipose tissues are considered loose connective tissues.
123
Hard
123 of 307
Remembering
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Protandry refers to the
View answer and explanation
Correct option: C
Earlier maturation of male sex organs than female sex organs
Option C (Earlier maturation of male sex organs than female sex organs) is correct because protandry is the condition where male parts mature before female parts in a hermaphroditic organism.
124
Medium
124 of 307
Analyzing
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Choose the correct option to complete the analogy
Forelimbs : Four digits without webs :: Hind limbs :_____
Forelimbs : Four digits without webs :: Hind limbs :_____
View answer and explanation
Correct option: B
Five webbed digits
Option B (Five webbed digits) is correct because hind limbs of frogs have five webbed digits for swimming.
125
Easy
125 of 307
Remembering
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Which of the following branch of science deals with the study of externally visible features?
View answer and explanation
Correct option: B
Morphology
Option B (Morphology) is correct because morphology deals with the study of externally visible features of organisms.
126
Hard
126 of 307
Remembering
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Most of the glands of the body are of
View answer and explanation
Correct option: B
merocrine type
Most glands in the body are merocrine, which secrete their products by exocytosis without damaging the cell.
127
Easy
127 of 307
Remembering
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In male frog, ureters act as
View answer and explanation
Correct option: A
Urinogenital ducts
Option A (Urinogenital ducts) is correct because in male frogs, the ureters carry both urine and sperm, thus functioning as urinogenital ducts.
128
Easy
128 of 307
Understanding
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Place these structures
A. Fascicle B. Myofilament C. Muscle fiber (Cell) D. Myofibril E. Sarcomere
A. Fascicle B. Myofilament C. Muscle fiber (Cell) D. Myofibril E. Sarcomere
View answer and explanation
Correct option: A
A, C, D, E, B
Option A (A, C, D, E, B) is correct because it represents the correct order of muscle structure from largest to smallest: Fascicle, Muscle fiber (Cell), Myofibril, Sarcomere, Myofilament.
129
Hard
129 of 307
Remembering
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The colour in the brown fat is due is
View answer and explanation
Correct option: C
A high concentration of iron containing cytochrome pigments
Option C (A high concentration of iron containing cytochrome pigments) is correct because brown fat's color comes from the high concentration of mitochondria containing iron-rich cytochrome pigments involved in thermogenesis.
130
Medium
130 of 307
Understanding
+4 | -1
Find the incorrectly matched pair.
View answer and explanation
Correct option: D
Cartilage - Areolar tissue
Option D (Cartilage - Areolar tissue) is correct because cartilage is a specialized connective tissue, while areolar tissue is a type of loose connective tissue; they are distinct tissue types, not directly related as a pair.
131
Medium
131 of 307
Understanding
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Which of the following statement is/are incorrect in refer one to earthworms?
I. They are soft and naked and hence, cannot survive in the dry earth
II. They respire through the nasal openings
III. They decaying organic matter of the soil forms their chief food
IV. Rain makes the earth soft for burrowing
I. They are soft and naked and hence, cannot survive in the dry earth
II. They respire through the nasal openings
III. They decaying organic matter of the soil forms their chief food
IV. Rain makes the earth soft for burrowing
View answer and explanation
Correct option: C
II and IV
Option C (II and IV) is correct because earthworms respire through their moist skin, not nasal openings, and rain makes the earth soft, aiding in movement, not burrowing.
132
Medium
132 of 307
Understanding
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Which of the following cells have a limited role in secretion and absorption
View answer and explanation
Correct option: C
Compound epithelium
Option C is correct because compound epithelium's primary function is protection, with a limited role in secretion and absorption compared to other epithelial types.
133
Easy
133 of 307
Remembering
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Connective tissue is
View answer and explanation
Correct option: A
Mesodermal in origin with intercellular spaces
Option A (Mesodermal in origin with intercellular spaces) is correct because connective tissue originates from the mesoderm and is characterized by having abundant extracellular matrix, creating intercellular spaces.
134
Easy
134 of 307
Remembering
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Which of the following type of connective tissue is present at the tip of human nose?
View answer and explanation
Correct option: A
Cartilage
Option A (Cartilage) is correct because the tip of the human nose is made of cartilage.
135
Easy
135 of 307
Understanding
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The type of muscles present in our body
View answer and explanation
Correct option: A
Thigh are striated and voluntary
Option A (Thigh are striated and voluntary) is correct because the thigh muscles are skeletal muscles, which are striated and under voluntary control.
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136
Hard
136 of 307
Understanding
+4 | -1
Which of the following properties of cardiac
muscles are correct?
(i) These are the muscles of the heart.
(ii) These are non-striated.
(iii) These are involuntary in their functions.
(iv) These are controlled by nervous system directly.
(v) Cardiac muscles not straited.
Select the correct option.
muscles are correct?
(i) These are the muscles of the heart.
(ii) These are non-striated.
(iii) These are involuntary in their functions.
(iv) These are controlled by nervous system directly.
(v) Cardiac muscles not straited.
Select the correct option.
View answer and explanation
Correct option: A
(i) and (iii)
Option A ((i) and (iii)) is correct because cardiac muscles are indeed the muscles of the heart and are involuntary in their functions.
137
Medium
137 of 307
Analyzing
+4 | -1
Choose the odd member w.r.t sexuality of organism.
View answer and explanation
Correct option: A
Cockroach
Option A (Cockroach) is correct because cockroaches are dioecious (unisexual), while tapeworms, leeches, and earthworms are monoecious (bisexual).
138
Medium
138 of 307
Remembering
+4 | -1
Lymphocytes are formed by
View answer and explanation
Correct option: D
None of these
Option D (None of these) is correct because lymphocytes are formed in the bone marrow and thymus, not directly by plasma cells, mast cells, or liver cells.
139
Easy
139 of 307
Remembering
+4 | -1
Which of the following gland is present in man but not in frog?
View answer and explanation
Correct option: B
Salivary gland
Option B (Salivary gland) is correct because humans have salivary glands, while frogs do not.
140
Easy
140 of 307
Remembering
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Mast cells secrete
View answer and explanation
Correct option: D
All of these
Option D (All of these) is correct because mast cells secrete serotonin, heparin, and histamine, all of which are involved in inflammatory and allergic responses.
141
Medium
141 of 307
Remembering
+4 | -1
Neuron with one axon and two or more dendrites is called
View answer and explanation
Correct option: C
Multipolar
Option C (Multipolar) is correct because a multipolar neuron is defined as having one axon and two or more dendrites, which is the most common type of neuron in the vertebrate nervous system.
142
Easy
142 of 307
Remembering
+4 | -1
Intercalated disc and cross connections are the characteristic features of
View answer and explanation
Correct option: A
Cardiac muscles
Option A (Cardiac muscles) is correct because intercalated discs and cross connections are characteristic features of cardiac muscle tissue, facilitating coordinated contractions.
143
Hard
143 of 307
Understanding
+4 | -1
Integument is usually called jack of all trades' because:
View answer and explanation
Correct option: A
performs various functions
Option A (performs various functions) is correct because the integumentary system has many roles.
144
Medium
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Understanding
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A: Lining of some hollow organs and cavities are moist.
R: This is because of the mucus secreted by the connective tissue.
R: This is because of the mucus secreted by the connective tissue.
View answer and explanation
Correct option: C
Assertion is true and reason is false
Option C (Assertion is true and reason is false) is correct because the lining of some hollow organs and cavities are moist, but this is due to mucus secreted by epithelial cells, not connective tissue.
145
Hard
145 of 307
Understanding
+4 | -1
Malpighian tubules absorb nitrogenous waste products from A and convert them into B .Choose the option that correctly fill the blanks A and B.
View answer and explanation
Correct option: B
A- Haemolymph,B-Uric acid
Option B (A- Haemolymph,B-Uric acid) is correct because Malpighian tubules absorb nitrogenous waste from the haemolymph and convert it into uric acid.
146
Medium
146 of 307
Analyzing
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Assertion: Simple epithelium covers surfaces
exposed to mechanical or chemical abrasions.
Reason: Protection of underlying tissues is the
major function of simple epithelium.
exposed to mechanical or chemical abrasions.
Reason: Protection of underlying tissues is the
major function of simple epithelium.
View answer and explanation
Correct option: D
If both Assertion and Reason are false
Option D (If both Assertion and Reason are false) is correct because simple epithelium is not for protection against abrasion, and protection is not its major function.
147
Medium
147 of 307
Remembering
+4 | -1
Which of the following sets of characters are applicable in metamorphosis of tadpole larva of frog and toads?
View answer and explanation
Correct option: A
Reabsorption of gills and reabsorption of tail
Option A (Reabsorption of gills and reabsorption of tail) is correct because during metamorphosis, tadpoles reabsorb their gills and tail.
148
Easy
148 of 307
Understanding
+4 | -1
In a copulating pair of Pheretima posthuma which of the two processes take place?
View answer and explanation
Correct option: B
Cross fertilization and reciprocal fertilization
Option B (Cross fertilization and reciprocal fertilization) is correct because earthworms exchange sperm during copulation (reciprocal) and fertilization occurs between different individuals (cross fertilization).
149
Easy
149 of 307
Remembering
+4 | -1
In Pheretima, the lateral hearts that connect the supra oesophageal blood vessel with ventral blood vessel are located in which segments?
View answer and explanation
Correct option: A
7 and 9
Option A (7 and 9) is correct because the lateral hearts in Pheretima (earthworm) are located in the 7th and 9th segments.
150
Hard
150 of 307
Remembering
+4 | -1
Cells of the epithelial tissue rest on a basement membrane, which is made up of
View answer and explanation
Correct option: B
muco polysaccharides
Option B (muco polysaccharides) is correct because the basement membrane, which supports epithelial tissue, is composed of muco polysaccharides and proteins.
Revision notes and key takeaways
Review STRUCTURAL ORGANISATION IN ANIMALS in your textbook or class notes, then use this set to check your understanding.
Showing 121-150 of 307 questions