Free How Do Organisms Reproduce? 01 Practice Test - 10th Grade
Question 1
Which of the following is/are included in asexual method of reproduction?
SOLUTION
Solution : A, B, C, and D
Asexual reproduction is a mode of reproduction by which offspring arise from a single organism and inherit the genes of that parent only. It does not involve the fusion of gametes. Budding, fission, fragmentation and vegetative propagation are examples of asexual reproduction.
Question 2
Which of the following is not a part of female reproductive system in human beings?
Ovary
Uterus
Vas deferens
Fallopian tube
SOLUTION
Solution : C
Vas deferens is a part of the male reproductive system. It is a duct that carries sperms from epididymis to copulatory organ. Along the way, secretions from seminal vesicles and prostate glands are added to the sperms. Ovary, uterus, fallopian tubes are parts of the female reproductive system.
Question 3
In human beings, males attain puberty a little later than females.
True
False
SOLUTION
Solution : A
In human beings, males attain puberty a little later than females. In girls, puberty usually begins at 10-11 years and completes at 15-16 yrs. In boys, puberty begins at 11-12 years and completes around 16-17 years.
Question 4
The process of doubling and duplicating the genetic material in the human cells is known as ________ and ________ type of cell division reduces chromosome number to half in sex cells.
SOLUTION
Solution : D
The process of doubling and replicating the genetic material in the human cells is known as DNA replication and meiotic cell division reduces chromosome number to half in sex cells. DNA replication is essential for cell division to take place.
Question 5
The major advantages of sexual reproduction in higher organisms are:
SOLUTION
Solution : A, B, C, and D
Sexual reproduction ensures generation of variations which leads to characteristic changes in the organism. This happens at DNA level and is inherited to the offspring also. Most of the variations are beneficial and happen at a very slow rate. Overall, survival and better adaptability is ensured. It also gives the advantage of resistance against pathogens and parasites.
Question 6
Label the parts of the flower:
1 - Peduncle, 2 - Filament, 3 - Petal, 4 - Stigma, 5 - Style, 6 -Ovary, 7 - Anther , 8 - Sepal
1 - Receptacle, 2 - Petal, 3 - Sepal, 4 - Style, 5 - Stigma, 6 - Ovule, 7 - Pollen sac, 8 - Filament
1 - Peduncle, 2 - Sepal, 3 - Petal, 4 - Stigma, 5 - Style, 6 - Ovary, 7 - Anther, 8 - Stamen
1 - Receptacle, 2 - Sepal, 3 - Petal, 4 - Stigma, 5 - Style, 6 - Ovary, 7 - Stamen, 8 - Filament
SOLUTION
Solution : C
Question 7
Which of the following can be used by a male to prevent transmission of sexually transmitted diseases?
Copper T
Oral pills
Condoms
Diaphragm
SOLUTION
Solution : C
A condom can be worn by a man over his penis which helps in the prevention of STDs and also prevents unwanted pregnancies. Copper T, oral pills and diaphragm are examples of female contraceptives which do not prevent STDs.
Question 8
The gestation period in human is about:
SOLUTION
Solution : C
The gestation period is the period of foetal development starting from fertilisation and ending at parturition or childbirth. During this period, the single-celled zygote undergoes gradual changes that help it to become a functional multicellular organism. The gestation period in human beings is about 270-280 days (9 months).
Question 9
Which of the following is FALSE about ovum?
SOLUTION
Solution : C
Ovum or ova is the female gamete produced by the ovaries. It is a non-motile structure larger than a sperm. It is a single, haploid cell with several protective layers outside its cell membrane.
Question 10
The average duration of menstrual cycle in human female is ___ days.
SOLUTION
Solution : B
The menstrual cycle lasts for about 28 days in female human beings. The release of ovum is called ovulation and it takes place during the mid period of this cycle. The first mentrual cycle in the lifespan of a female is called menarche and the last menstrual cycle is called menopause.