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12th Biology Weekly Test -4 ( Zoology - Human Reproduction )

St. Britto Hr. Sec. School - Madurai

12th Biology Weekly Test -4 ( Zoology - Human Reproduction )-Aug 2020

Time : 1.00 Hours

Part - A

Multiple Choice Question - Answer All Question

The ______ glands in human female are homologous to the prostate gland in male.

Bartholin's glands
Skene's glands
mammary glands
Cowper's gland

The ruptured Graafian follicle forms ______

corpus luteum
primary follicle
oogonia
secondary follicle

'Let Down' reflex for lactation is caused by ______

Prolactin
Oxytocin
Lactogenic hormone
Progesterone

Each testis is covered by a fibrous layer _____

tubulus rectus
corona radiata
vitelline membrane
tunica albuginea

The transfer of sperms by the male into the female genital tract is called _____

implantation
parturition
insemination
gastrulation

The scrotum acts as _____ for spermatogenesis.

chemoregulator
thermoregulator
enzyme regulator
photo regulator

The ______ glands occur posterior to the vagina.

Skene's glands
Cowper's gland
prostate gland
Bartholin's glands

The hormone ___________ brings about powerful contraction of uterine muscles during child birth.

Relaxin
Oestrogen
Progesterone
Oxytocin

______ cells nourish the sperms.

Leydig cells
Interstitial cells
Spermatogonic cells
Sertoli cells

A – Head of the sperm consists of acrosome and mitochondria.
R – Acrosome contains spiral rows of mitochondria.

A and R are true, R is the correct explanation of A
A and R are true, R is not the correct explanation of A
A is true, R is false
Both A and R are false

The _____ is a double layered embryonic membrane

chorion
amnion
allantois
yolksac

The most important hormone in intiating and maintaining lactation after birth is

Oestrogen
FSH
Prolactin
Oxytocin

A mature follicle produces _____ polar bodies during oogenesis.

four
three
two
one

A – Ovulation is the release of ovum from the Graafian follicle.
R – It occurs during the follicular phase of the menstrual cycle.

A and R are true, R is the correct explanation of A
A and R are true, R is not the correct explanation of A
A is true, R is false
Both A and R are false

The corpus luteum secretes large amount of ______

testosterone
relaxin
oestrogen
progesterone

The thin ring of tissue that particularly closes the vaginal opening ____

labia majora
hymen
labia minora
clitoris

Which one of the following menstrual irregularities is correctly matched?

Menorrhagia - excessive
Amenorrhoea - absence of menstruation
Dysmenorrhoea - irregularity of menstruation
Oligomenorrhoea - painful menstruation

The ______ is the smallest human cell.

sperm
neuron
nephron
alveoli

Sperms are released into the cavity of the seminiferous tubule by a process called _____

spermiogenesis
spermatogenesis
spermiation
gametogenesis

The foetal membrane that forms the basis of the umbilical cord is

Allantois
Amnion
Chorion
Yolk sac

The foetal ejection reflex is also called ____________ reflex.

Ferguson
Let - Down
Braxter - Hicks
Parturition

The seminal fluid has a coagulating enzyme called _____

vesiculase
hyaluronidase
amylase
lactase

Why is colostrum recommended to new born baby?

It contains higher amount of carbohydrates
It contains higher amount of fats
It contains Ig A antibodies
It contains Ig E antibodies

The male sex hormone testosterone is secreted from

Sertoli cells
Leydig cell
Epididymis
Prostate gland

A – In human male, testes are extra abdominal and lie in scrotal sacs.
R – Scrotum acts as thermoregulator and keeps temperature lower by 2oC for normal sperm production

A and R are true, R is the correct explanation of A
A and R are true, R is not the correct explanation of A
A is true, R is false
Both A and R are false

Which of the following is not belonging to the accessory glands of the male reproductive system?

Prostate gland
Corpus albicans
Cowper's gland
Bulbourethral glands

The _____ is the site for spermatogereis.

epididymis
vas deferens
seminiferous tubules
tubulus rectus

The glandular accessory organ which produces the largest proportion of semen is

Seminal vesicle
Bulbourethral gland
Prostate gland
Mucous gland

The _____ are modified sweat gland seen in both sexes

Skene's glands
Bartholin's glands
Mammary gland
Cowper's gland

______ is not linked to polymenorrhoea

Shorter cycle
Gland activity
Malnutrition
Pain

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