IGCSE Cambridge Secondary Grade 9 Study Materials, Online Learning, Question Papers, Classnotes, Practice Test, MCQ | Smartindia Educational Program : www.smartindia.net.in


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Question-1
What is puberty?

(A) Partitioning of replicated chromosomes into two identical groups	(B) Prenatal development of the organs of the fetus
(C) Adults undergo the process of sexual maturation	(D)Reproductive cycle in the female primate

Question-2
During menstrual flow, what body structure secretes hormones into the bloodstream to "direct" another ovarian follicle to begin rapid growth?

(A) Ovary	(B) Pituitary gland
(C) Uterus	(D)Thyroid gland

Question-3
During ejaculation, as the sperm pass out of the man's body through the penis, secretions that fuel and protect the sperm are also released from the:

(A) Seminal vesicles and prostate gland	(B) Androgens and prostate gland
(C) Prostate gland and urethra	(D)Seminal vesicles and urethra

Question-4
The primary female reproductive organs, the ovaries, produce mature ova and the female sex hormones:

(A) Estrogen and testosterone	(B) Estrogen and progesterone
(C) Progesterone and testosterone	(D) Androsterone and progesterone

Question-5
An absolutely essential growth process that begins within a few hours of fertilization and is a division of cells into identical cells is called:

(A) Embriosis	(B) Mitosis
(C) Endotosis	(D)Reproduction

Question-6
SpermS are produced in the man's body in winding tubules within the:

(A) Epididymis	(B) Urethra
(C) Testes	(D)Fallopian tubes

Question-7
The newly fertilized ovum is called a :

(A) Embryo	(B) Foetus
(C) Conceptus	(D)Zygote

Question-8
Long, threadlike structures made of protein and nucleic acid containing hereditary materials are known as :

(A) Genomes	(B) Chromosomes
(C) DNA	(D)Genes

Question-9
The placenta is the organ that:

(A) Transfers maternal nutrients to the fetus.	(B) Protects the fetus against infectious organisms
(C) Directly connects the fetal and maternal blood supplies	(D)Connects the embryo to the vaginal wall

Question-10
The principal male sex hormones are:

(A) Estrogen and progesterone	(B) Estrogen and testosterone
(C) Testosterone and androsterone	(D)Testosterone and semen

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