X and Y are two human beings. The organ A in the reproductive system of X releases a mature gamete B once a month which goes into a tube-like structure C through a funnel-like opening. The organ D in the reproductive system of Y makes and releases gametes E which pass through a duct F and are introduced by an organ of Y, into the body of X. B and E fuse together in C to form a new cell G. The cell G divides repeatedly to form a ball of cells H which gets embedded in the lining of organ I of reproductive system of X where it grows and develops into a baby.(a) Name (i) organ A, and (ii) gamete B.
(b) Write two names of tube-like structure C.
(c) Name (i) organ D, and (ii) gamete E.
(d) Write two names of duct F.
(e) Name (i) cell G (ii) ball of cells H, and (iii) organ I.
(f) Out of X and Y, which one is (i) male, and (ii) female?
(a) (i) Organ A that releases mature gamete once a month is an ovary and (ii) the mature gamete B it releases is an egg or ovum.
(b) The tube-like structure C where an egg goes is known as the fallopian tube or an oviduct.
(c) (i) Organ D is testes as it produces gamete E, that is (ii) Sperm which is introduced in the body of X.
(d) The duct F through which gamete E, sperm, passes is sperm duct or vas deferens.
(e) (i) Cell G is Zygote (ii) Zygote divides repeatedly to form a ball of cells that is known as the embryo and (iii) Organ I where embryo embedded or implants is known as uterus.
(f) As X releases mature gametes every month, it is female and Y is male.
Related Articles
- The top part A of the flask-shaped reproductive organ X in the flower of a plant secretes a surgery substance into its lower part B which goes towards the bottom part C of the flask-shaped organ. When a tiny grain D coming from the top part E of another reproductive organ Y in the flower falls on part A, it grows a long tube F through the organ X in response to the sugary substance and reaches the bottom part C of flask-shaped organ to carry out fertilisation.(a) What is (i) organ X, and (ii) organ Y, inside the flower?(b) Name parts (i) A (ii) B, and (iii) C, of flask-shaped.(c) Name (i) grain D, and (ii) part E of organ Y.(d) Name the tube F.(e) What is the phenomenon of growing a long tube in response to a sugary substance in the process of fertilisation in a flower known as?
- Match the following:(a) Zygote(i) Reproductive organ(b) Sperm(ii) A clone(c) Flower(iii) Male gamete(d) Egg(iv) First cell of a new organism(e) Dolly(v) Female gamete
- The germ cell A produced by a person X is round in shape and it fuses with another germ cell B having a long tail and produced by a person Y. The fusion of A and B produces a new cell C. The cell C divides repeatedly and grows inside the organ D of person X to form E in which the body features of the unborn baby are not much developed. E grows further to form F in which the various body features of the unborn baby (like hands, legs, head, eyes, and ears, etc.) can be identified. F grows further and ultimately forms a baby. What are A, B, C, D, E and F? Out of the two persons X and Y, which one is male and which one female?
- Fertilisation Is the Process of (A) Transfer of Male Gamete to Female Gamete. (B) Fusion of Nuclei of Male and Female Gamete. (C) Adhesion of Male and Female Reproductive Organs. (D) The Formation of Gametes by A Reproductive Organ. Justify Your Answer.
- The egg of an Ostrich is a/an(a) cell(b) tissue(c) organ(d) organ system
- The partially digested food coming from the stomach of a person enters a long and narrow organ A in his body. The organ A receives the secretions of two glands : liver and pancreas. Liver secretes a greenish yellow liquid B which is normally stored in the organ C. Pancreas secretes pancreatic juice which contains three digestive enzymes D, E and F. The intestinal juice completes the process of digestion of food. The inner wall of organ A has millions of tiny finger-like projections G which help in the rapid absorption of digested food into blood stream. The undigested part of food then passes into wider tube H which absorbs most of the water form undigested food. The last part of tube H called I stores this undigested food (or waste) foe some time. The indigested food is then passed out through opening J as faeces in the process known as K.(a) Name the organ A.(b) Name (i) liquid B, and (iii) organ C.(c) What are the digestive enzymes D, E and F?(d) Name the projections G present on the inner wall of organ A.(e) Name (i) tube H (ii) part I (iii) opening J, and (iv) process K.
- The organ A which is located inside the skull of our body is protected by a bony box B and it is surrounded by three membranes C. The space between the membranes is filled with a liquid D which protects the organ A from mechanical shocks. The organ A in combination with another organ E makes up to central nervous system.(a)What is organ A?(b)What are (i) B (ii) C, and (iii) D?(c)Name the organ E.(d)While walking barefooted, if we happen to step on a sharp piece of stone, we immediately lift our foot up. Which of the two organs, A or E, is directly involved in this action?(e) If we step out from a darkened room into bright sunshine, we close our eyes for a moment. Which of the two organs, A or E, is directly involved in this action?
- Two chemical species X and Y combine together to form a product P which contains both X and Y X + Y → P. X and Y cannot be broken down into simpler substances by simple chemical reactions. Which of the following concerning the species X, Y and P are correct?P is a compoundX and Y are compoundsX and Y are elementsP has a fixed composition(a) (i), (ii) and (iii),(b) (i), (ii) and (iv)(c) (ii), (iii) and (iv) (d) (i), (iii) and (iv)
- A woman uses a device X made of a common metal for preventing pregnancy. This device works by preventing the implantation of fertilised egg cell (or embryo) in the female organ Y.(a) What are the two names of device X? (b) Name the organ Y. (c) Can this method of contraception protect a woman from acquiring a STD?
- An organism A which cannot move from one place to another, makes a simple food B from the substances C and D available in the environment. This food is made in the presence of a green coloured substance E present in organs F in the presence of light energy in a process called G. Some of the simple food B also gets converted into a complex food H for storage purposes. The food H gives a blue-black colour with dilute iodine solution. (a) What is (i) organism A (ii) food B, and (iii) food H?(b) What are C and D?(c) Name (i) green coloured substance E, and (ii) organ F.(d) What is the process G?
- The person A has only B chromosomes in all its gametes. On the other hand, another person C has chromosome D in half of gametes and chromosome E in the other half of gametes. When chromosomes B and D combine during fertilisation, a female zygote results. On the other hand, combination of B and E chromosomes produces a male zygote.(a) What are chromosomes (i) B (ii) D, and (iii) E? (b) Out of B, D and E, which two chromosomes are of the same type? (c) Which chromosome is smaller in size? (d) What is the general name of chromosomes such as B and E? (e) Out of the two persons A and C, which one is (i) male, and (ii) female?
- When an insect sits on the flower of a plant then some particles A present in the top of little stalks in the flower attach to its body hair. When this insect now sits on the flower of another similar plant, then particles A attached to the hair of insect are put on the top of a flask-shaped organ at the centre of flower. The particle A grows a long tube B from the top of flask-shaped organ through which C moves down and reaches the bottom part of flask-shaped organ. Here C fuses with the nucleus of D contained in structure E. The fusion of C and D forms new cell F which grows and develops into a seed of the plant.(a)What are particles A? What is the process of transferring A from one flower to another flower of similar plant by the insect known as? (b)What is the name of tube B? (c)What is C which moves down through the tube B? (d)Name D and E. (e)What is F?
- The two glands A and B which occur in pairs, are present in the endocrine system of humans. The pair of glands A is found only in females whereas the pair of glands B occurs only in males. The glands A make and secrete two hormones C and D whereas glands B make and secrete only one hormone E. In addition to hormones, glands A makes gametes F whereas glands B making gametes G.(a) What are glands A?(b) What are hormones C and D?(c) What are glands B? Name the hormone E.(d) What are gametes (i) F, and (ii) G?(e) Which event in the life of males and females is associated with the secretion of hormones C, D and E?
- The liquid connective tissue A circulates in our body continuously without stopping. This tissue contains a pigment B which imparts it a colour C. The tissue A consists of four components D, E, F and G. The component D fights infection and protects us from diseases. The component E helps in the clotting of tissue A if a person gets a cut. The component F is a liquid which consists mainly of water with many substances dissolved in it and component G carries oxygen from the lungs to all the parts of the body.(a) What is (i) tissue A (ii) pigment B, and (iii) colour C ?(b) Name (i) D (ii) E (iii) F, and (iv) G.(c) Name one substance (other than oxygen) which is transported by tissue A in the human body.(d) Which two components of tissue A are the cells without nucleus ?(e) Name any two organisms (animals) which do not have liquid like A in their body.
- When a person breathes in air, the air enters into his body through an organ A having two holes B in it. The air then passes through pharynx and larynx and enters into a tube C. The tube C divides into two smaller tubes D at its lower end. The two smaller tubes are attached to two respiratory organs E. Each smaller tube divides inside the organs E to form a large number of still smaller tubes called F. The smallest tubes F have air-sacs G at their ends in which gaseous exchange takes place in the body of the person. What are A, B, C, D, E, F and G ?
Kickstart Your Career
Get certified by completing the course
Get Started