NEET Biology Previous year questions September 2020

Match the following columns and select the correct option.

Column-I	Column-II
(A)Floating Ribs	(I)Located between second and seventh ribs
(B)Acromion	(II)Head of the Humerus
(C)Scapula	(III)Clavicle
(D)Glenoid cavity	(IV)Do not connect with the sternum

[class-xi ]

(A)-(II), (B)-(IV), (C)-(I), (D)-(iii)
(A)-(I), (B)-(III), (C)-(II), (D)-(IV)
(A)-(III), (B)-(II), (C)-(IV), (D)-(I)
(A)-(IV), (B)-(III), (C)-(I), (D)-(II)

Correct Option: D [ (A)-(IV), (B)-(III), (C)-(I), (D)-(II) ]

Remark:

Match the following columns and select the correct option.

Column-I	Column-II
(A)Organ of Corti	(I)Connects middle ear and pharynx
(B)Cochlea	(II)Coiled part of the labyrinth
(C)Eustachian tube	(III)Attached to the oval window
(D)Stapes	(IV)Located on the basilar membrane

[class-xi ]

(A)-(II), (B)-(III), (C)-(I), (D)-(IV)
(A)-(III), (B)-(I), (C)-(IV), (D)-(II)
(A)-(IV), (B)-(II), (C)-(I), (D)-(III)
(A)-(I), (B)-(II), (C)-(IV), (D)-(III)

Correct Option: C [ (A)-(IV), (B)-(II), (C)-(I), (D)-(III) ]

Remark:

Snow-blindness in Antarctic region is due to:

[class-xi ]

Freezing of fluids in the eye by low temperature
Inflammation of cornea due to high dose of UV-B radiation
High reflection of light from snow
Damage to retina caused by infra-red rays

Correct Option: B [ Inflammation of cornea due to high dose of UV-B radiation ]

Remark:

Match the following columns and select the correct option.

Column-I	Column-II
(A)Pituitary gland	(I)Grave's disease
(B)Thyroid gland	(II)Diabetes mellitus
(C)Adrenal gland	(III)Diabetes insipidus
(D)Pancreas	(IV)Addison's disease

[class-xi ]

(A)-(IV), (B)-(III), (C)-(I), (D)-(II)
(A)-(III), (B)-(II), (C)-(I), (D)-(IV)
(A)-(III), (B)-(I), (C)-(IV), (D)-(II)
(A)-(II), (B)-(I), (C)-(IV), (D)-(III)

Correct Option: C [ (A)-(III), (B)-(I), (C)-(IV), (D)-(II) ]

Remark:

Select the correct statement.

[class-xi ]

Glucocorticoids stimulate gluconeogenesis.
Glucagon is associated with hypoglycemia.
Insulin acts on pancreatic cells and adipocytes.
Insulin is associated with hyperglycemia.

Correct Option: A [ Glucocorticoids stimulate gluconeogenesis. ]

Remark:

Strobili or cones are found in:

[class-xii ]

Salvinia
Pteris
Marchantia
Equisetum

Correct Option: D [ Equisetum ]

Remark:

In water hyacinth and water lily, pollination takes place by:

[class-xii ]

insects or wind
water currents only
wind and water
insects and water

Correct Option: A [ insects or wind ]

Remark:

The plant parts which consist of two generations - one within the other:
A. Pollen grains inside the anther
B. Germinated pollen grain with two male gametes
C. Seed inside the fruit
D. Embryo sac inside the ovule

[class-xii ]

(A) only
(A), (B) and (C)
(C) and (D)
(A) and (D)

Correct Option: D [ (A) and (D) ]

Remark:

Match the following columns and select the correct option.

Column-I	Column-II
(A)Placenta	(I)Androgens
(B)Zona pellucida	(II)Human Chorionic Gonadotropin (hCG)
(C)Bulbo-urethral glands	(III)Layer of the ovum
(D)Leydig cells	(IV)Lubrication of the Penis

[class-xii ]

(A)-(IV), (B)-(III), (C)-(I), (D)-II)
(A)-(I), (B)-(IV), (C)-(II), (D)-(III)
(A)-(III), (B)-(II), (C)-(IV), (D)-(I)
(A)-(II), (B)-(III), (C)-(IV), (D)-(I)

Correct Option: D [ (A)-(II), (B)-(III), (C)-(IV), (D)-(I) ]

Remark:

Which of the following hormone levels will cause release of ovum (ovulation) from the graffian follicle?

[class-xii ]

High concentration of Estrogen
High concentration of Progesterone
Low concentration of LH
Low concentration of FSH

Correct Option: A [ High concentration of Estrogen ]

Remark:

NEET - September 2020 Previous Year Questions

NEET Biology Previous Year Questions - September 2020

NEET Biology Previous Year Questions (PYQs)