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Biology M.C.Q (1 Marks)

Human Reproduction · CBSE STD 12 Science (CBSE - English Medium). 29 questions.

Questions

M.C.Q (1 Marks)

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29 questions · timed · auto-graded

MCQ 11 Mark
Choose the correct sequence of processes in human reproduction
  • ✓
    Gametogenesis $\rightarrow$ Gamete fusion $\rightarrow$ Zygote $\rightarrow$ Embryonic development
  • B
    Zygote $\rightarrow$ Gametogenesis $\rightarrow$ Gamete fusion $\rightarrow$ Embroynic development
  • C
    Embryonic development $\rightarrow$ Gametogenesis $\rightarrow$ Zygote $\rightarrow$ Gamete fusion
  • D
    Gamete fusion $\rightarrow$ Embryonic development $\rightarrow$ Gametogenesis $\rightarrow$ Zygote
Answer
Correct option: A.
Gametogenesis $\rightarrow$ Gamete fusion $\rightarrow$ Zygote $\rightarrow$ Embryonic development
(A)Gametogenesis $\rightarrow$ Gamete fusion $\rightarrow$ Zygote $\rightarrow$ Embryonic development
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MCQ 31 Mark
The nucleus present in apical part of sperms:
  • A
    Spherical
  • B
    Oval
  • C
    Triangular
  • ✓
    Elliptical
Answer
Correct option: D.
Elliptical
(D)Elliptical
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MCQ 41 Mark
Fruit sugar is present in:
  • A
    Urine
  • B
    Sweat
  • C
    Oxytocin
  • ✓
    Seminal plasma
Answer
Correct option: D.
Seminal plasma
(D)Seminal plasma
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MCQ 51 Mark
The terminal globular part of penis is called:
  • A
    Foreskin
  • B
    Monspubis
  • ✓
    Glanspenis
  • D
    Epididymis
Answer
Correct option: C.
Glanspenis
(C)Glanspenis
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MCQ 61 Mark
The primary sex organ of female is:
  • A
    Uterus
  • ✓
    Ovary
  • C
    Oviduct
  • D
    Infundibulum
Answer
Correct option: B.
Ovary
(B)Ovary
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MCQ 71 Mark
Seminal plasma with sperms constitutes:
  • ✓
    Semen
  • B
    Hormone
  • C
    Enzyme
  • D
    All of these
Answer
Correct option: A.
Semen
(A)Semen
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MCQ 81 Mark
The function of placenta is/are:
  • A
    Nutrition
  • B
    Excrition
  • C
    Respiration
  • ✓
    All of these
Answer
Correct option: D.
All of these
(D)All of these
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MCQ 91 Mark
After a month of pregnancy in human, the organ developed in embryo is:
  • ✓
    Heart
  • B
    Limbs and fingers
  • C
    Hairs
  • D
    External genitalia
Answer
Correct option: A.
Heart
(A)Heart
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MCQ 101 Mark
Temporary cessation of menstruation indicates:
  • A
    Absorption
  • ✓
    Pregnancy
  • C
    Menstrual cycle
  • D
    Oestrous cycle
Answer
Correct option: B.
Pregnancy
(B)Pregnancy
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MCQ 111 Mark
Energy is derived by sperm's tail for movement from:
  • A
    Golgi complex
  • ✓
    Mitochondria
  • C
    Lysosome
  • D
    Nucleus
Answer
Correct option: B.
Mitochondria
(B)Mitochondria
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MCQ 121 Mark
Sperm head gets embedded in _________ after spermatogenesis.
  • A
    Stroma
  • B
    Polar cells
  • ✓
    Sartoli cells
  • D
    Thela interna
Answer
Correct option: C.
Sartoli cells
(C)Sartoli cells
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MCQ 131 Mark
The accessory gland of human male is:
  • A
    Seminal vesicle
  • B
    Prostate gland
  • C
    Bulbourethral glands
  • ✓
    All of these
Answer
Correct option: D.
All of these
(D)All of these
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MCQ 141 Mark
Sperms are formed from germ cells in male as a result of:
  • ✓
    Meiosis
  • B
    Mitosis
  • C
    Amitosis
  • D
    None of these
Answer
Correct option: A.
Meiosis
(A)Meiosis
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MCQ 151 Mark
Testis are situated in a pouch or sac like structure outside the abdominal cavity which is called:
  • ✓
    Scrotal sac
  • B
    Epididymis
  • C
    Seminal vesicle
  • D
    Ovary
Answer
Correct option: A.
Scrotal sac
(A)Scrotal sac
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MCQ 161 Mark
HCGC (Human chorionic gonadotropin) is secreted by:
  • A
    Sertoli cells
  • B
    Discus proligerous
  • ✓
    Placenta
  • D
    Follicle cells
Answer
Correct option: C.
Placenta
(C)Placenta
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MCQ 171 Mark
The beginning (Ist puberty is called: menstruation) of menstruation at puberty is called:
  • ✓
    Menarche
  • B
    Menopause
  • C
    Organism
  • D
    Cryptochidism
Answer
Correct option: A.
Menarche
(A)Menarche
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MCQ 181 Mark
The rupturing of graafian follicle and release of ovum is known as:
  • A
    Conjugation
  • B
    Castration
  • C
    Organism
  • ✓
    Ovulation
Answer
Correct option: D.
Ovulation
(D)Ovulation
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MCQ 191 Mark
For how many days occurs bleeding during menstrual cycle?
  • ✓
    $10-15$ days
  • B
    $3-5$ days
  • C
    $20-25$ days
  • D
    None of these
Answer
Correct option: A.
$10-15$ days
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MCQ 201 Mark
Embryo with $8-16$ blastomeres is called
  • ✓
    Morula
  • B
    Blastula
  • C
    Blastocyst
  • D
    Implantation
Answer
Correct option: A.
Morula
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MCQ 211 Mark
In which organ, formation of sperms occurs:
  • ✓
    Testis
  • B
    Epdidymis
  • C
    Vas deferens
  • D
    Prostate gland
Answer
Correct option: A.
Testis
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MCQ 231 Mark
How many ova are released during ovulation in each menstrual cycle:
  • ✓
    One
  • B
    Two
  • C
    Three
  • D
    Four
Answer
Correct option: A.
One
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MCQ 241 Mark
Blastocyst is implanted to$..........$layer of uterus.
  • A
    Perimetrium
  • B
    Myometrium
  • ✓
    Endometrium
  • D
    Submucosa
Answer
Correct option: C.
Endometrium
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MCQ 251 Mark
The gestation period in human being is:
  • A
    15 month
  • ✓
    9 month
  • C
    12 month
  • D
    18 month
Answer
Correct option: B.
9 month
(B)9 month
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MCQ 261 Mark
Temperature in scrotal sac is lowered by $.........$ than abdominal cavity.
  • ✓
    $2-2.5^\circ C$
  • B
    $5^\circ C$
  • C
    $6^\circ C$
  • D
    $13^\circ C$
Answer
Correct option: A.
$2-2.5^\circ C$
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MCQ 271 Mark
At which stage, ova stop forming in women:
  • A
    $13$ years
  • B
    $20$ years
  • C
    $40$ years
  • ✓
    $50$ years
Answer
Correct option: D.
$50$ years
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MCQ 291 Mark
Testis are the structural and functional units of:
  • A
    Uriniferous tubules
  • ✓
    Seminiferous tubules
  • C
    Epididymis
  • D
    Mullerian tubules
Answer
Correct option: B.
Seminiferous tubules
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M.C.Q (1 Marks) - Biology STD 12 Science Questions - Vidyadip