Question 1 :
State whether the statement is TRUE or FALSE : Flowers are always bisexual.
Question 2 :
Which of the following is the correct sequence of events of sexual reproduction in a flower?
Question 3 :
In a flower, the parts that produce male and female gametes (germ cells) are
Question 4 :
State whether the statement is TRUE or FALSE : Flowers are the sexual reproductive organs.
Question 5 :
State whether the statement is TRUE or FALSE : Flowers are produced in all groups of plants.
Question 6 :
State whether the statement is TRUE or FALSE : Unisexual flowers possess both stamen and pistil.
Question 7 :
State whether the statement is TRUE or FALSE : After fertilisation Flowers give rise to fruits.
Question 8 :
State whether the statement is TRUE or FALSE : Unisexual flowers possess either stamen or pistil.
Question 9 :
State whether the statement is TRUE or FALSE : Unisexual flowers possessing only stamens cannot produce fruits.
Question 10 :
State whether the statement is TRUE or FALSE : Unisexual flowers exhibit cross pollination.
Question 11 :
State whether the statement is TRUE or FALSE : Sexual reproduction in flowering plants requires two types of gametes.
Question 12 :
State whether the statement is TRUE or FALSE : Sexual reproduction in flowering plant, fertilisation is a compulsory event.
Question 13 :
State whether the statement is TRUE or FALSE : Sexual reproduction in flowering plant always results in formation of zygote.
Question 14 :
State whether the statement is TRUE or FALSE : Sexual reproduction in flowering plant,Offspring formed are clones.
Question 15 :
Offspring formed as a result of sexual reproduction exhibit more variations because
Question 17 : <img style='object-fit:contain' src='https://teachmint.storage.googleapis.com/question_assets/cbse_ncert/61cc184f78c526e972caea1a.PNG' />
In the above figure, what is A?
Question 18 : <img style='object-fit:contain' src='https://teachmint.storage.googleapis.com/question_assets/cbse_ncert/61cc184f78c526e972caea1a.PNG' />
In the above figure, what is C?
Question 19 : <img style='object-fit:contain' src='https://teachmint.storage.googleapis.com/question_assets/cbse_ncert/61cc184f78c526e972caea1a.PNG' />
In the above figure, what is B?
Question 20 :
During adolescence, several changes occur in the human body. Mark one change associated with sexual maturation in boys
Question 21 :
In human males, the testes lie in the scrotum, because it helps in the
Question 22 :
In human females, an event that reflects onset of reproductive phase is
Question 23 :
Whether secretion of estrogen is the function of testes at puberty?
Question 24 :
Whether development of placenta is the function of testes at puberty?
Question 25 :
Whether formation of germ cells is the function of testes at puberty ?
Question 26 :
The correct sequence of organs in the male reproductive system for transport of sperms is
Question 27 :
Whether secretion of testosterone is the function of testes at puberty?
Question 29 :
Can you consider cell division as a type of reproduction in unicellular organism?
Question 30 :
Why does bread mould grow profusely on a moist slice of bread rather than on a dry slice of bread?
Question 31 :
Gather information about the chromosome numbers of five animals and five plants. Correlate the number with the size of organism and answer the following questions: Do larger organisms have more number of chromosomes/cells?
Question 32 : <img style='object-fit:contain' src='https://teachmint.storage.googleapis.com/question_assets/cbse_ncert/61cc185078c526e972caea1d.PNG' />
In the above figure, would a Planaria cut vertically into two halves regenerate into two individuals?
Question 33 :
Gather information about the chromosome numbers of five animals and five plants. Correlate the number with the size of organism and answer the following questions: Can organism with fewer chromosomes reproduce more easily than organisms with more number of chromosomes?
Question 34 :
Gather information about the chromosome numbers of five animals and five plants. Correlate the number with the size of organism and answer the following questions: More the number of chromosomes/cells greater is the DNA content.
Question 35 :
In tobacco plant, the male gametes have twenty four chromosomes. What is the number of chromosomes in the female gamete?
Question 36 :
In tobacco plant, the male gametes have twenty four chromosome.What is the number of chromosomes in the zygote?
Question 37 :
Why cannot fertilisation take place in flowers if pollination does not occur?
Question 39 :
State whether the statement is TRUE or FALSE : Reproduction is linked to stability of population of a species.
Question 40 :
Is the chromosome number of zygote, embryonal cells and adult of a particular organism always constant?
Question 41 :
State whether the statement is TRUE or FALSE : Colonies of yeast fail to multiply in water, but multiply in sugar solution.
Question 43 :
What changes are observed in the uterus if fertilisation does not occur?
Question 44 :
What changes are observed in the uterus subsequent to implantation of young embryo?
Question 45 : <img style='object-fit:contain' src='https://teachmint.storage.googleapis.com/question_assets/cbse_ncert/61cc185078c526e972caea1f.PNG' />
In the above figure, which part mention the function Site of fertilisation.
Question 46 : <img style='object-fit:contain' src='https://teachmint.storage.googleapis.com/question_assets/cbse_ncert/61cc185078c526e972caea1f.PNG' />
In the above figure, which part mention the function Site of implantation.
Question 47 : <img style='object-fit:contain' src='https://teachmint.storage.googleapis.com/question_assets/cbse_ncert/61cc185078c526e972caea1f.PNG' />
In the above figure, which part mention the function Production of egg
Question 49 :
What would be the ratio of chromosome number between an egg and its zygote?
Question 50 : <img style='object-fit:contain' src='https://teachmint.storage.googleapis.com/question_assets/cbse_ncert/61cc185078c526e972caea1f.PNG' />
In the above figure, which part mention the function Entry of the sperms.
