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Structural Organisation in Animals Class 11 MCQs Questions with Answers
Question 1.
Glands of Zeis are associated with eyelashes. These are modified-
(a) Sweat glands
(b) Mucous glands
(c) Sebaceous glands
(d) Sudoriferous glands
Answer
Answer: (c) Sebaceous glands
Question 2.
The most abundant type of animal tissue in the complex animals is
(a) Muscle tissue
(b) Nervous tissue
(c) Connective tissue
(d) Epithelial tissue
Answer
Answer: (c) Connective tissue
Question 3.
Ciliated Epithelium occurs in frog
(a) Oviduct & Buccal cavity
(b) Stomach & urinary Bladder
(c) Blood vessels & Lymph vessels
(d) Kidney & stomach
Answer
Answer: (a) Oviduct & Buccal cavity
Question 4.
The innermost layer of epidermis in mammals is termed-
(a) Stratum granulosum
(b) Stratum lucidum
(c) Stratum spinosum
(d) Stratum germinativum
Answer
Answer: (d) Stratum germinativum
Question 5.
The first milk secreted following child birth is called-
(a) Infant milk
(b) Colostrum
(c) Casein
(d) None of these
Answer
Answer: (b) Colostrum
Question 6.
Which part of hairs have pigment granules of melanin
(a) Hair follicle
(b) Hair papilla
(c) Medulla
(d) Cortex
Answer
Answer: (d) Cortex
Question 7.
The epithelium found in the lining layer of stomach and intestine is
(a) Squamous epithelium
(b) Cuboidal epithelium
(c) Columnar epithelium
(d) Ciliated columnar epithelium
Answer
Answer: (c) Columnar epithelium
Question 8.
In mammals maximum energy is lost by the
(a) Respiration
(b) Urine
(c) Skin
(d) Stool
Answer
Answer: (c) Skin
Question 9.
Which organ of the body is known as “Jack of all trades”
(a) Kidney
(b) Brain
(c) Skin
(d) All of the above
Answer
Answer: (c) Skin
Question 10.
Covering membrane around muscle fibre is known as
(a) Neurilemma
(b) Plasmalemma
(c) Sarcolemma
(d) Myolemma
Answer
Answer: (c) Sarcolemma
Question 11.
Which one of the following contains the largest quantity of extra-cellular material
(a) Striated muscle
(b) Areolar tissue
(c) Stratified epithelium
(d) Myelinated nerve fibres
Answer
Answer: (b) Areolar tissue
Question 12.
Integument is usually called by the proverb ‘Jack of all trades’ because it-
(a) Gives shape to various structures of the body
(b) Protects of the body
(c) Restricts the size of the individual
(d) Performs various functions
Answer
Answer: (d) Performs various functions
Question 13.
Metagenesis refers to:
(a) Alteration of generation between asexual and sexual phases of an organisms
(b) Occurrence of a drastic change in form during post-embroyonic development
(c) Presence of a segmented body and parthenogenetic mode of reproduction
(d) Presence of different morphic forms
Answer
Answer: (a) Alteration of generation between asexual and sexual phases of an organisms
Question 14.
Certain neutrophils in female mammals possess a small spherical lobe attached to their nucleus by a stalk. This lobe is called
(a) Barr body
(b) Leucona
(c) Leukopenia
(d) Golgi body
Answer
Answer: (a) Barr body
Question 15.
The epithelium involved in diffusion is
(a) Squamous epithelium
(b) Columnar epithelium
(c) Cuboidal epithelium
(d) Ciliated columnar epithelium
Answer
Answer: (a) Squamous epithelium
Question 16.
In rabbit, hairs and most of the glands are developed from
(a) Epidermis
(b) Dermis
(c) Subcutaneous layer
(d) Reticular layer
Answer
Answer: (a) Epidermis
Question 17.
lnner lining of Blood vessels and heart is tesseleted Epithelium. Which is
(a) Simple squamous due to wavy appearance
(b) Simple squamous due to tile like appearance
(c) Simple cuboidal due to wavy appearance
(d) Simple columnar Epithelium
Answer
Answer: (a) Simple squamous due to wavy appearance
Question 18.
Nasal granules in a nerve cell are now identified as
(a) Mitochondria
(b) Fat granules
(c) Cell metabolites
(d) Ribosomes
Answer
Answer: (d) Ribosomes
Question 19.
The thinest epidermis is situated on
(a) Face
(b) Nipples
(c) Conjactiva
(d) Lips
Answer
Answer: (c) Conjactiva
Question 20.
In central nervous system the myelin sheath around the nerve fibre is formed by the spiral wrapping of
(a) Neurilemma
(b) Schwann cells
(c) Oligodendrocytes
(d) Neurolemmocytes
Answer
Answer: (c) Oligodendrocytes
Question 21.
A process in which whole of skin (epidermis and dermis) is preserved by means of some chemicals is known as:
(a) Albinism
(b) Toxicology
(c) Taxidermy
(d) Tanning
Answer
Answer: (c) Taxidermy
Question 22.
Apocrine secretion of gland means:
(a) When the product is released but cell remains intact
(b) When entire contents of cell is discharged with the destruction of the cell
(c) When part of apical cytoplasm is lost
(d) None of these
Answer
Answer: (c) When part of apical cytoplasm is lost
Question 23.
Collagen is
(a) Carbohydrate
(b) Globular protein
(c) Fibres of structural proteins
(d) Lipid
Answer
Answer: (c) Fibres of structural proteins
Question 24.
Lacrymal glands are responsible for secreting-
(a) Sebum
(b) Cerumin
(c) Tears
(d) Mucous
Answer
Answer: (c) Tears
Question 25.
The skin becomes dry during the cold weather because of-
(a) Vasodilation
(b) Vasoconstriction
(c) Less sweat in cold weather
(d) None of the above
Answer
Answer: (b) Vasoconstriction
Question 26.
Pseudostratified epithelium is present in
(a) Nephron & Neurone
(b) Larynx & Bronchi
(c) Trachea & Bronchi
(d) Urinary Bladder & Intestine
Answer
Answer: (c) Trachea & Bronchi
Question 27.
The body cells in cockroach discharge their nitrogenous waste in the haemolymph mainly in the form of
(a) Potassium urate
(b) Urea
(c) Calcium carbonate
(d) Ammonia
Answer
Answer: (a) Potassium urate
Question 28.
Long refractory period is present in
(a) Smooth muscles
(b) Cardiac muscles
(c) Striated muscles
(d) None of these
Answer
Answer: (b) Cardiac muscles
Question 29.
‘Goose -flesh’ is:
(a) Arrector pilli muscles contract & they cause the erection of hairs.
(b) Some long and hard hairs situated upon the upper lip in rabbit
(c) Presence of sebum to keep skin soft
(d) Uncooked meat of pork
Answer
Answer: (a) Arrector pilli muscles contract & they cause the erection of hairs.
Question 30.
The epithelium found in the lining layer of stomach and intestine is
(a) Columnar
(b) Squamous
(c) Stratified
(d) Pseudostratified
Answer
Answer: (a) Columnar
Question 31.
If a clean dry bone is kept in dil HCl for about 3 days, it
(a) Breaks into pieces
(b) Becomes soft and elastic
(c) Dissolves
(d) Remain unchanged
Answer
Answer: (b) Becomes soft and elastic
Question 32.
Which of the following match is incorrect?
(a) Holocirine – Sebaceous
(b) Merocrine – Pancreas
(c) Apocrine – Mammary glands
(d) Eccrine (Merocrine) – Mammary gland
Answer
Answer: (d) Eccrine (Merocrine) – Mammary gland
Question 33.
The part of dermis is mainly composed of
(a) Fibrous connective tissue
(b) Elastin proteins
(c) Nerve fibres and receptor
(d) Blood capillaries
Answer
Answer: (a) Fibrous connective tissue
Question 34.
Pavement epithelium is the name of:
(a) Cuboidal epithelium
(b) Squamous epithelium
(c) Columnar epithelium
(d) Ciliated epithelium
Answer
Answer: (b) Squamous epithelium
Question 35.
Non Keratinised stratified squamous epithelium is found in
(a) Skin
(b) Stomach
(c) Oesophagus
(d) Intestine
Answer
Answer: (c) Oesophagus
Question 36.
Anaemia is caused due to deficiency of
(a) Folic acid
(b) Vitamin B12
(c) Haemoglobin
(d) All of these
Answer
Answer: (d) All of these
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