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NEET • BIOLOGY • STRUCTURAL ORGANISATION IN ANIMALS
Structural organisation in animals practice · Medium
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Simple epithelium is a tissue in which the cells are
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Correct option: B
Cemented directly to one another to form a single layer
Option B (Cemented directly to one another to form a single layer) is correct because simple epithelium is characterized by a single layer of cells tightly connected.
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In addition to the Malpighian tubules, excretion of the waste products in cockroach occurs by
View answer and explanation
Correct option: D
All of the above
Option D (All of the above) is correct because, in addition to Malpighian tubules, fat bodies, nephrocytes, and uricose glands also contribute to excretion in cockroaches.
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Remembering
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The ciliated columnar epithelial cells in humans are known to occur in
View answer and explanation
Correct option: A
Bronchioles and fallopian tubes
Option A (Bronchioles and fallopian tubes) is correct because ciliated columnar epithelium is found in these locations to move mucus and ova, respectively.
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Understanding
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Find out the wrongly matched pair.
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Correct option: B
Columnar epithelium - Peritoneum of body cavity
Columnar epithelium is typically found lining the stomach and intestines, not the peritoneum of the body cavity, which is lined by simple squamous epithelium.
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Analyzing
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Assertion: Materials cannot be exchanged
between epithelial cells.
Reason: Blood vessels are present in epithelial
tissue.
between epithelial cells.
Reason: Blood vessels are present in epithelial
tissue.
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 materials can be exchanged between epithelial cells, and blood vessels are not present in epithelial tissue.
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Understanding
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Select the correct statements from the following.
A. Microvilli are present in the cells of simple cuboidal and columnar epithelia
B. Ciliated epithelium is present lining the inner surface of hollow organs like bronchioles.
C. Compound epithelia are found only as covering of organs like skin and protective in function.
D. Glandular epithelium consists of specialized squamous cells for secretion
A. Microvilli are present in the cells of simple cuboidal and columnar epithelia
B. Ciliated epithelium is present lining the inner surface of hollow organs like bronchioles.
C. Compound epithelia are found only as covering of organs like skin and protective in function.
D. Glandular epithelium consists of specialized squamous cells for secretion
View answer and explanation
Correct option: A
A & B
Option A is correct because microvilli are found in simple cuboidal and columnar epithelia, and ciliated epithelium lines bronchioles.
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Heart is formed by specific proportion and pattern of these tissues.
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Correct option: D
All of these
Option D (All of these) is correct because the heart is composed of epithelium, connective tissue, and muscular and neural tissue working together.
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A: Muscle fibers are said to be contractile in nature.
R: Cells of muscle tissues can shorten forcefully and again return to the relaxed state.
R: Cells of muscle tissues can shorten forcefully and again return to the relaxed state.
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Correct option: A
Both assertion and reason are true and reason is the correct explanation of assertion
Option A (Both assertion and reason are true and reason is the correct explanation of assertion) is correct because the ability of muscle fibers to contract and relax is the fundamental basis of their contractile nature.
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Analyzing
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Select the odd one w.r.t. location of non-striated muscles.
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Correct option: B
Wall of heart
Option B (Wall of heart) is the odd one out because the heart wall contains cardiac muscle, which is striated, while the others contain non-striated (smooth) muscle.
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One very special feature in the earthworm Pheretima is that
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Correct option: A
The typhlosole greatly increases the effective absorption area of the digested food in the intestine
Option A (The typhlosole greatly increases the effective absorption area of the digested food in the intestine) is correct because the typhlosole's primary function is to increase the surface area for absorption in the intestine.
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A: Adipose tissues are specialised to store fats.
R: Adipocytes are specialised cells for storage of fats present in adipose tissue.
R: Adipocytes are specialised cells for storage of fats present in adipose tissue.
View answer and explanation
Correct option: A
Both assertion and reason are true and reason is the correct explanation of assertion
Option A (Both assertion and reason are true and reason is the correct explanation of assertion) is correct because the presence of adipocytes specialized for fat storage is the reason why adipose tissue is specialized for fat storage.
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Remembering
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Germinal epithelium is composed of
View answer and explanation
Correct option: A
Cuboidal epithelium
Option A (Cuboidal epithelium) is correct because germinal epithelium, which produces gametes in the gonads, is composed of cuboidal epithelial cells.
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Remembering
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In earthworm, pharyngeal nephridia are present as three paired tufts in the segments
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Correct option: B
4th, 5th and 6th
Option B (4th, 5th and 6th) is correct because pharyngeal nephridia in earthworms are present as three paired tufts in the 4th, 5th, and 6th segments.
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Remembering
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Which of the following part of the cockroach helps in the removal of excretory products from the haemolymph?
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Correct option: B
Malpighian tubule
Option B (Malpighian tubule) is correct because Malpighian tubules are the primary organs responsible for removing excretory products from the hemolymph in cockroaches.
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Understanding
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Which of the following are composed of
involuntary and unstriated muscles?
involuntary and unstriated muscles?
View answer and explanation
Correct option: D
Gastric wall and Artery wall
Option D (Gastric wall and Artery wall) is correct because both the gastric wall and artery wall contain involuntary and unstriated (smooth) muscles.
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Remembering
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Which one of the following is not the characteristic feature of frog?
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Correct option: B
Each of the fore limbs and hindlimbs end in five digits
Option B (Each of the fore limbs and hindlimbs end in five digits) is correct because frogs have four digits on their forelimbs and five digits on their hindlimbs.
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Remembering
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Alimentary canal wall contains
View answer and explanation
Correct option: C
Smooth muscles
Option C (Smooth muscles) is correct because the walls of the alimentary canal contain smooth muscles, which are responsible for peristalsis (involuntary contractions).
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Analyzing
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Assertion: Extracellular materials help in separation of
cells
Reason: Cell junctions are formed by extra cellular
materials
cells
Reason: Cell junctions are formed by extra cellular
materials
View answer and explanation
Correct option: B
If both the assertion and reason are true but the reason is
not a correct explanation of the
assertion.
not a correct explanation of the
assertion.
Option B (If both the assertion and reason are true but the reason is not a correct explanation of the assertion) is correct because extracellular materials help in cell separation and cell junctions are formed by them, but they are not directly related.
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Analyzing
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Which of the following is incorrect about the skeletal muscle?
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Correct option: C
Voluntary nature
Option A (Not under direct control of CNS) is incorrect because skeletal muscles *are* under direct voluntary control of the central nervous system (CNS).
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Remembering
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Matrix secreting cells of cartilage are known as
View answer and explanation
Correct option: A
Chondrocytes
Option A (Chondrocytes) is correct because chondrocytes are the cells responsible for secreting and maintaining the matrix of cartilage.
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Analyzing
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How many of the following statements is/are incorrect?
A. Glandular epithelium may be unicellular or multicellular.
B. Salivary glands have multicellular glandular epithelium.
C. Products of exocrine glands bathe the gland.
D. Compound epithelium has a major role in secretion and
absorption.
A. Glandular epithelium may be unicellular or multicellular.
B. Salivary glands have multicellular glandular epithelium.
C. Products of exocrine glands bathe the gland.
D. Compound epithelium has a major role in secretion and
absorption.
View answer and explanation
Correct option: B
2
Option B (2) is correct because two of the statements (C and D) are incorrect regarding glandular and compound epithelium.
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Analyzing
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How many features given below are not related to female frog?
(a) Reproductive organs include a pair of ovaries.
(b) Absence of copulatory pad on the first digit of the fore limbs.
(c) Presence of sound producing vocal sacs.
(d) The ovaries are situated near kidneys and there is functional connection with kidneys.
(e) Mature female can lay 2500-3000 ova at a time Select the correct option.
(a) Reproductive organs include a pair of ovaries.
(b) Absence of copulatory pad on the first digit of the fore limbs.
(c) Presence of sound producing vocal sacs.
(d) The ovaries are situated near kidneys and there is functional connection with kidneys.
(e) Mature female can lay 2500-3000 ova at a time Select the correct option.
View answer and explanation
Correct option: B
Two
Option B (Two) is correct because the presence of vocal sacs and the functional connection between ovaries and kidneys are not features of female frogs.
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Remembering
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Goblet cells are
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Correct option: A
Unicellular glands
Option A (Unicellular glands) is correct because goblet cells are single-celled glands that secrete mucus.
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Understanding
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Which of the following features is not present in ?
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Correct option: B
Indeterminate and radial cleavage during embryonic development
Option B (Indeterminate and radial cleavage during embryonic development) is correct because cockroaches exhibit determinate and spiral cleavage, not indeterminate and radial cleavage.
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Remembering
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Which of the following is not a connective tissue?
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Correct option: A
Neuroglia
Option A (Neuroglia) is correct because neuroglia are supporting cells of the nervous system and are classified as neural tissue, not connective tissue.
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Understanding
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General function of gland is to
View answer and explanation
Correct option: C
produce and secrete specialised compounds to control and maintain different body functions.
Option C (produce and secrete specialised compounds to control and maintain different body functions) is correct because glands are specialized for producing and secreting substances that regulate bodily functions.
27
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Analyzing
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Choose the odd one w.r.t the male reproductive system of cockroach:-
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Correct option: B
Spermatheca
Option B (Spermatheca) is the odd one because it is a part of the female reproductive system, while the others are part of the male reproductive system.
28
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Analyzing
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Choose the odd one w.r.t. compound epithelium
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Correct option: C
They cover the dry surface of skin and never found on moist surfaces of the body
Option C (They cover the dry surface of skin and never found on moist surfaces of the body) is correct because compound epithelium is found on both dry and moist surfaces.
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Remembering
+4 | -1
Blood vascular system of earthworm is
View answer and explanation
Correct option: D
Closed type with Hb in plasma
Option D (Closed type with Hb in plasma) is correct because earthworms have a closed circulatory system where hemoglobin is dissolved in the plasma, not contained within red blood cells.
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Segregate the given set of statements regarding frog into true and false category
I) Frogs do not have a lymphatic system
II)Frogs are ammonotelic animals
III)Hindlimbs of frog ends in five digits and forelimbs ends in four digits
IV) Female frog contains sound producing vocal sacs which are absent in male frog
I) Frogs do not have a lymphatic system
II)Frogs are ammonotelic animals
III)Hindlimbs of frog ends in five digits and forelimbs ends in four digits
IV) Female frog contains sound producing vocal sacs which are absent in male frog
View answer and explanation
Correct option: D
F, F, T, F
Option D (F, F, T, F) is correct because frogs have a lymphatic system, are ureotelic, hindlimbs have five digits, and male frogs have vocal sacs.
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