A single cell with specified functions

Composed of a single layer with cube-like cells

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NEET • BIOLOGY • STRUCTURAL ORGANISATION IN ANIMALS

Structural organisation in animals practice · Easy

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Showing 91-107 of 107 questions

91 Easy

91 of 107

Understanding +4 | -1

Identify the types of cell junctions that help to stop the leakage of the substances across a tissue and facilitation of communication with neighbouring cells via rapid transfer of ions and molecules.

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Correct option: D

Tight junctions and Gap junctions, respectively

Tight junctions prevent leakage, and gap junctions facilitate communication via rapid transfer of ions and molecules.

92 Easy

92 of 107

Understanding +4 | -1

What is common to silkworm, filarial worm and tapeworm?

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Correct option: C

Bilateral symmetry

Option C (Bilateral symmetry) is correct because silkworm, filarial worm, and tapeworm all exhibit bilateral symmetry.

93 Easy

93 of 107

Remembering +4 | -1

Tissues are made up of with

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Correct option: B

cells & extracellular matrix

Option B (cells & extracellular matrix) is correct because tissues consist of cells and the extracellular matrix, which provides support and facilitates cell communication.

94 Easy

94 of 107

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Tendons helps in connecting

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Correct option: A

Muscles to bones

Option A (Muscles to bones) is correct because tendons are connective tissues that connect muscles to bones, enabling movement.

95 Easy

95 of 107

Understanding +4 | -1

Which of the following sets is not completely related to the Exocrine glands secretion?

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Correct option: D

Saliva, Testosterone and Milk

Testosterone is a hormone secreted by endocrine glands, not exocrine glands. Saliva, oil, and milk are exocrine secretions.

96 Easy

96 of 107

Remembering +4 | -1

Spiracles found in cockroach are

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Correct option: C

2 pairs in thorax and 8 pairs in abdomen

Option C (2 pairs in thorax and 8 pairs in abdomen) is correct because cockroaches have 2 pairs of spiracles in the thorax and 8 pairs in the abdomen, totaling 10 pairs.

97 Easy

97 of 107

Remembering +4 | -1

In earthworm, self-fertilization cannot occur due to

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Correct option: B

Protandry

Option B (Protandry) is correct because earthworms exhibit protandry, where the male reproductive organs mature before the female reproductive organs, preventing self-fertilization.

98 Easy

98 of 107

Analyzing +4 | -1

Choose the odd one w.r.t. structure present In reproductive system of female cockroach

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Correct option: D

Phallic gland

Option D (Phallic gland) is correct because the phallic gland is a structure present in the male reproductive system of cockroaches, not the female.

99 Easy

99 of 107

Understanding +4 | -1

Choose Correct sequence

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Correct option: B

\mathrm{Foregut} \to \mathrm{Midgut} \to \mathrm{Ileum} \to \mathrm{Colon} \to \mathrm{Rectum} \to \mathrm{Anus}

Option B (

\mathrm{Foregut} \to \mathrm{Midgut} \to \mathrm{Ileum} \to \mathrm{Colon} \to \mathrm{Rectum} \to \mathrm{Anus}

) is correct because this is the correct sequence of the alimentary canal in cockroaches.

100 Easy

100 of 107

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Muscles involved in the movement of arm are

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Correct option: A

Striated

Option A (Striated) is correct because the muscles involved in arm movement are skeletal muscles, which are striated due to the arrangement of actin and myosin filaments.

101 Easy

101 of 107

Understanding +4 | -1

Periplaneta has no respiratory pigment in its blood because

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Correct option: A

Air is conducted directly to the body tissues

Option A (Air is conducted directly to the body tissues) is correct because cockroaches have a tracheal system that delivers air directly to the tissues, eliminating the need for a respiratory pigment in the blood.

102 Easy

102 of 107

Understanding +4 | -1

Four healthy people in their twenties got involved in injuries resulting in damage and death of few cells of the following. Which of the cells are least likely to be replaced by new cells?

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Correct option: B

Neurons

Option B (Neurons) is correct because neurons are highly specialized cells with limited regenerative capacity, making them the least likely to be replaced by new cells after damage.

103 Easy

103 of 107

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Gap junctions are present in all except

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Correct option: C

Skeletal muscles

Gap junctions are present in epithelial tissue, striated involuntary muscles (cardiac), and smooth muscle, but not typically in skeletal muscles.

104 Easy

104 of 107

Remembering +4 | -1

Hypopharynx of the cockroach acts as

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Correct option: C

Tongue

Option C (Tongue) is correct because the hypopharynx in a cockroach functions as a tongue, helping to manipulate food during feeding.

105 Easy

105 of 107

Analyzing +4 | -1

Mark the odd one.

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Correct option: D

Erythrocytes

Option D (Erythrocytes) is correct because erythrocytes are not a type of leukocyte (white blood cell), while monocytes, lymphocytes, and neutrophils are.

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106 Easy

106 of 107

Remembering +4 | -1

Tissue is

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Correct option: A

A group of similar cells together with their associated cell intercellular substances which perform a specific function

Option A is correct because a tissue is defined as a group of similar cells performing a specific function, along with their intercellular substances.

107 Easy

107 of 107

Remembering +4 | -1

Goblet cells of alimentary canal are a type of

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Correct option: C

Unicellular gland

Option C (Unicellular gland) is correct because goblet cells are single-celled glands that secrete mucus.

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