How Do Organisms Reproduce? Questions

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How Do Organisms Reproduce? Questions

List of how do organisms reproduce? Questions

Question NoQuestionsClass
1The production of offsprings by sexual or asexual process is called as
A. Division
B. Growth
c. Reproduction
D. All of the above
10
2What is the age of puberty in boys and girls?10
3Why do girls grow faster than boys at
the age of ( 12 ? )
A. Girls reach puberty earlier than boys.
B. Boys reach puberty earlier than girls.
C. Girls normally take in more proteins at the age of 12.
D. Boys normally consume less food.
10
4How the adolescents gets safe and
nurturing environment?
10
5During growth period, many adolescence get excessive growth,
resulting in to a symmetrically giant body. Why it happens so?
10
6Write the features or characteristics of
types of reproduction
10
7Choose the correct sequence of events
occur in human reproduction.
A. Gametogenesis ( rightarrow ) gestation ( rightarrow ) insemination ( rightarrow ) fertilization ( rightarrow ) implantation ( rightarrow ) parturition
B. Gametogenesis ( rightarrow ) insemination ( rightarrow ) gestation ( rightarrow ) implantation ( rightarrow ) fertilization ( rightarrow ) parturition
C. Gametogenesis ( rightarrow ) insemination ( rightarrow ) fertilization ( rightarrow rightarrow ) implantation ( rightarrow ) gestation ( rightarrow ) parturition
D. Gestation ( rightarrow ) gametogenesis ( rightarrow ) insemination ( rightarrow ) implantation ( rightarrow ) fertilization ( rightarrow ) parturition
10
8Very short answer type:
State one advantage and one disadvantage of cleistogamy.
10
9Give the significance of fertilization.10
10Give a brief account on reproduction in animals10
11After attaining the puberty girls develop
voice.
A . Low
B. High pitched
c. Deep
D. Low pitched
10
12Very short answer type.
Unlike of conventional breeding programme, it is possible to evolve a cytoplasmic hybrid from two different genera using tissue culture.
10
13List changes in the body that take place
at puberty.
10
14Which of the following statements is
incorrect?
A. Earthworms and leeches are hermaphrodite animals.
B. Young ones of animals showing external fertilisation receive little or no parental care.
C. If the egg is not fertilised, it is thrown out of the body along with the lining of the uterus as menstrual flow.
D. Sex organs in human beings are formed at puberty.
10
15Acne and pimples on the face are due to the secretion of
A. Bile from liver
B. Oil glands during puberty
C. Enzymes in the digestive tract
D. Tear from tear glands
10
16How do you say boys and girls the age of
adolescence?
10
17After fertilization, ovule grows into
A. Seed
B. Fruit
c. Placenta
D. None of the above
10
18Your school has been selected by the department of education to organise and host an interschool seminar on
‘Reproductive Health-Problems and
Practices’. However, many parents are reluctant to permit their wards to attend it. Their argument is that the topic is “too embarrassing’. Put forth four arguments with appropriate reasons and explanation to justify the topic to be very essential and timely.
10
19Growth rate in childhood is controlled by
A. Thymosin
B. Thyroxine
c. Progesterone
D. Oestrogen
10
20Voice is high pitched in
A. Aged persons
B. Adult males
c. Boys
D. Females
10
21At the time of puberty, the hormone that
triggers changes is This question has multiple correct options
A. Testosterone
B. Estrogen
c. Adrenaline
D. Thyroxine
10
22On reaching puberty, a woman’s ovaries usually release egg each month.
A. one
B. Two
c. Three
D. Many
10
23Seed having the longest viability is
A. chenopodium
B. Quercus
C. Nelumbo
D. Eucalyptus
10
24As opposed to primary sexual characteristics, changes in secondary sexual characteristics are mostly evident in changes in
A. Reproductive capacity
B. The skeleton system
c. The circulatory system
D. External appearance
10
25How does the height boys and girls change during puberty?10
26Adam’s apple is a
A. Large developed voice box in males
B. Apple which is eaten by Adam
c. special class of apple
D. None of the above
10
27List two reasons for the appearance of
variations among the progeny formed by sexual reproduction
10
28The first sign of puberty in female is
A. Breast development.
B. Menstruation.
c. High pitch of voice
D. sprouting of pubic hairs.
10
29The link between parents and offspring
is
A. Gonads
B. Gametes
c. zooids
D. Hybrids
10
30It is observed that simple organisms like algae and fungi normally reproduce asexually but before the onset of adverse conditions they shift to sexual reproduction. It is so because sexual reproduction
A. Saves time
B. Is rapid
c. Produces variations
D. All of the above
10
31Voice is high pitched in
A. Ages persons
B. Adult males
c. Boys
D. Females
10
32During adolescence, the body of a girl does not show which of the following changes?
A. Acne and pimple on face
B. Deep voice
c. Development of mammary gland
D. Growth of pubic hair
10
33Hypochondria commonly occurs in adolescents with
A. Perceptual disturbance
B. Late development
c. Physiological aberration
D. Chronic mental and physical weakness
10
34Ovules convert into in the
mature fruit.
A. Seeds
B. Fruits
c. stamens
D. All of the above
10
35Very short answer type:
List two characters of pollen grains that
favour anemophily in plants.
10
36Puberty is preceded by
A. Increased levels of androgen.
B. Increased levels of thyroxine.
C. Increased levels of insulin.
D. None of the above.
10
37Larynx is also called as
A. Voice box
B. Sound box
( c . ) Black box
D. All of the above
10
38External or accessory or secondary sexual characters first appear in
A. Childhood
B. Puberty
c. Foetus
D. Adulthood
10
39Unscramble the underlined words in the
following sentences.
The overgrowth of sclemus in ynxlar leads to the hoarse voice in
adolescent boys.
A. The overgrowth of scmusle in rylanx leads to the hoarse voice in adolescent boys
B. The overgrowth of mulescs in lanxyr leads to the hoarse voice in adolescent boys
c. The overgrowth of lesmcus in xylran leads to the hoarse voice in adolescent boys
D. The overgrowth of muscles in larynx leads to the hoarse voice in adolescent boys.
10
40Reproduction is essential for living organisms in order to
A. Keep the individual organism alive
B. Fulfiill their energy requirement
c. Maintain growth
D. continue the species generation after generation
10
41Offspring formed due to sexual reproduction have better chances of survival. Why? Is this statement always true?10
42Enlargement of ( ldots ldots . . ) causes change in voice in children.
A . Larynx
B. Pharynx
c. Throat
D. Epiglottis
10
43The features which help to distinguish the male from the female are called as
A. sex chromosomes
B. Primary sexual characters
c. Secondary sexual characters
D. All of the above
10
44What is importance of sexual
reproduction in plant?
10
45Changes in growth of children can be determined through
A. Height
B. Weight
c. Both A and B
D. Length
10
46Which light is most effective in seed
germination?
A. Green
B. Far red
c. Red
D. Blue
10
47In girls, the muscles of the body grow more prominently than in the boys.
A. True
B. False
10
48In Spirogyra, asexual reproduction takes
place by
A. Breaking up of filaments into smaller bits.
B. Division of a cell into two cells.
C. Division of a cell into many cells.
D. Formation of young cells from older cells.
10
49Which of the following flowers are pollinated by wind?
A. sunflower
B. corn and willow
c. buttercup and rose
D. orchid and wall flower
10
50At puberty stage mammary glands develop inside the breasts.
A. True
B. False
10
51Which of the following is associated with reproduction?
A. Parthenogenesis
B. Fertilization
c. stos
D. All of the above
10
52Why do young people get acne and pimples on face?10
53Height of a person depends on their
A. Genes
B. Blood
c. Habits
D. None of the above
10
54After attaining puberty boys develop voice.
A . Low
B. High pitchedd
c. Deep
D. Low pitched
10
55In the mechanism of action of a protein hormone, one of the second messengers is?
A. Cyclic AMP
B. Insulin
( c cdot T_{3} )
D. Gastrin
10
56Which of the following statement can be related to puberty?
A. Is never ending
B. Is only for girls
c. Is only for boys
D. Ends at a certain age
10
57Adam’s apple is prominent in
A. Boys of any age
B. Adolescent girls
c. Girls of any age
D. Adolescent boys
10
58Which one is correctly matched
A. Tears – Excretion of salts
B. Sweat – Thermoregulation
C. Saliva – Testing food
D. Statolith – Sexual attraction
10
59Ageing is characterised by
A. Decline in metabolic activity
B. Increased metabolic activity
C. Increased anabolism
D. Increased catabolism
10
60How are the functions of the
reproductive organs in human beings controlled?
10
61Which of the following options is
correct?
A. Transfer of pollen grains from the anther to the stigma of the same flower-Autogamy
B. Transfer of pollen grains from the anther of one flower to the stigma of another flower of same plantGeitonogamy
C. Transfer of pollen grains from the anther to the stigma of a genetically different plant of same speciesXenogamy
D. All of these
10
62Give two floral adpatations of bird pollinated plants.10
63causes pimples in both boys and girls at puberty.
A. Increased activity of sweat and sebaceous gland
B. Decreased activity of sweat and sebaceous gland
C. Inactivity of sweat and sebaceous glan
D. Viral infection
10
64Name the mode of reproduction that ensures the creation of new variants.10
65Adam’s apple is easily observed in
A. Boys
B. Girlss
c. Both boys and girls
D. None of the above
10
66Generally, girls have a …………… voice whereas the voice in boys is
A. High pitched, low pitchedd
B. Low pitched, high pitched
c. sweet pitched, rough pitched
D. None of the above
10
67Fertilisation is defined as the process
by which
A. a diploid spermatozoan unites with a haploid ovum to form a triploid zygote
B. a haploid spermatozoan unites with a haploid ovum to form a diploid zygote
C . a diploid spermatozoan unites with a diploid ovum to form a diploid zygote
D. a diploid spermatozoan unites with a haploid ovum to form a diploid zygote.
10
68Which of the following statements is
true?
A. Boys will reach puberty at an earlier age than girls.
B. At about the age of ( 12, ) girls will grow more rapidly than boys.
C. At the end of rapid growth, girls are normally heavier than boys.
D. Between the age of 4 to ( 12, ) girls will grow faster than boys
10
69Plumed seeds occur in
A. Naravelia
B. Taraxacum
c. Calotropis
D. colutea
10
70Name any two copper-releasing Intra Uterine Devices(IUDs). List two reasons
that make them effective
contraceptives.
10
71A narrow waistline, wide hip and oily
skin are the secondary signs of puberty in
A. Males
B. Females
c. Both A and B
D. Not gender-based
10
72Which one is de novo mutation?
A. ( pi times pi rightarrow pi )
B. ( t t times t t rightarrow T t )
( mathbf{c} cdot mathbf{T} mathbf{t} times mathbf{t t} rightarrow mathbf{T} )
D. ( mathrm{Tt} times mathrm{Tt} rightarrow pi ), Tt, t ( mathrm{t} )
10
73Differentiate between adolescence and
puberty
10
74How does the creation of variations in a
species promote survival?
10
75As compared to whole body, the head of new born human baby is
A. One-third
B. One-half
c. one-fifth
D. One-fourth
10
76What is the difference between direct
and indirect development?
10
77With the advancement of age, hair of males start thinning due to
A. Falling of hair
B. Low ATP formation
c. Reduced rate of protein synthesis
D. None of the above
10
78At the time of fertilization, sperm head
enters in the egg from
A. Any where
B. Animal pole
c. vegetal pole
D. Lateral side of egg
10
79Muscle growth during puberty occurs
A. only in males
B. Only in females
c. In both genders
D. Very slowly in females
10
80Which of the following plant had developed an obligate symbiotic relationship with a moth called
Tagetecula, in relation to pollination
A. Amorphophallus
B. Ficus
c. Salvia
D. Yucca
10
81Although sexual reproduction is a long, drawn, energy-intensive complex form
of reproduction, many groups of organisms in kingdom Animalia and Plantae prefer this mode of
reproduction. Give at least 3 reasons for
this.
10
82During adolescence, several changes occur in the human body. Out of the following, which change is associated with sexual maturation in boys?
A. Loss of milk teeth
B. Increase in height
c. cracking of voice
D. weight gain
10
83Accessory sexual characters first appear in
A. Childhood
B. Puberty
c. Fetus
D. Adulthood
10
84Very short answer type:
Why are pollen grains produced in enormous quantity in maize?
10
8534. How many chromosomes pair
are in a human body?
(1) 24
(2) 19
(3) 22 (4) 23
10
86Which of the following pairs are
correctly matched?
a. spirogyra Fragmentatio an –
Planaria
ponges
b. ( quad ) Regeneration Hydra, Planari
and sponges
( mathrm{c} )
Scion an ( – ) The part of the
plant that is
grafted to other
plant
Development of
d. Parthenogenesis organisms
from an
unfertilized degg
The correctly paired ones are given
( A cdot a, c ) and ( d )
B. ( a, b, c ) and ( d )
( c . b, c ) and ( d )
D. a, b and d
10
87Which of the following organisms reproduce by the fragmentation method?
A. Rhizopus and Penicillium
B. Hydra and Amoeba
c. Paramecium and Plasmodium
D. Spirogyra
10
88Define regeneration and fragmentation.10
89Reproduction is the characteristics of
living organisms, but it cannot be regarded as defining property because
A. Asexual reproduction involves only single parent
B. Lower organisms do not reproduce under stressful environmental conditions
c. All living beings do not have the capacity to reproduce
D. For lower plants growth and reproduction are mutually inseparable phenomenon
10
90What are the major change significant at the stage of adolescents?10
91Drones are specified for:-
A. Collection of food
B. Fertilization of eggs
C. Protection
D. Egg laying
10
92Age at which puberty begins in individuals generally is
A . ( 10-13 )
B. 15 – 25
( c cdot 2-4 )
D. 50 – 70
10
93What is the transition period from childhood to adulthood?10
94During puberty, the testes of boys ……. in size.
A. Enlarges
B. Shortens
c. Lengthens
D. Thickens
10
95Define the term pollination. Differentiate between self pollination
and cross pollination. What is the
significance of pollination?
10
96In which of the following plant, the fruit is a drupe, seed coat is thin, embryo is inconspicuous and endosperm is edible?
A. Groundnut
B. Wheat
c. Apple
D. coconut
10
97Why adolescence is also called
teenage?
10
98In adolescents, acne develops into
A. Males in response to androgen
B. Females in response to oestrogen
C. Both males and females in response to androgen
D. Both males and females in response to oestrogen
10
99Give the scientific term used for insect
pollinated plants and one example.
10
100The structure meant for the
nourishment of developing embryo in case of plants is
A. Pollen tube
B. Endosperm
c. Both A and B
D. None of the above
10
101Name the type of Pollination mechanism found in members of
Fabaceae.
10
102Plants are able to produce fruits with the help of insects as they are
A. Help in aestivation
B. Help in pollination
c. Help to overcome dormancy
D. None of the above
10
103During adolescence, an adult gains in height and ( ldots ldots . . . ) in weight.
A . ( 10 %, 20 % )
B. 30%, 60%
c. 25%, 50%
D. 40%, 80%
10
104Reproduction, unlike other life processes, is not essential to maintain the life of an individual organism.
A. True
B. False
10
105Define reproduction.10
106Out of the seven characters of pea
studied by Mendel,gens for three were situated on chromosome number four
(flower position,pod shape and plant height.) Suppose if they were closely situated and were linked then which of
the following rule would not have been discovered or explained Mendel?
A. Law of dominance
B. Law of seggregation
c. Law of independent assortment
D. Law of purity of gametes
10
107During adolescence, several changes occur in the human body. Find out the change which is associated with sexual maturation in boys.
A. Loss of milk teeth
B. Increase in height
c. cracking of voice
D. weight gain
10
108The stage when the reproductive organs reach sexual maturity is called as
A. Puberty
B. Menstruation
c. Gestation
D. Fertilization
10
109Period of adolescence means the
Period between
A . 12 to 18 years age
B. 15 to 45 years age
c. 15 to 24 years age
D. 45 to 80 years age
10
110After attaining puberty, the boys develop a voice.
A. Heavy
B. Light
c. Thinner
D. High pitched
10
111Leyding cells produce a group of hormones called.
A. Androgens
B. Estrogen
c. Aldosterone
D. Gonadotropins
10
112Mark the correct statement for algae.
A. Chlorophyllous, thalloid and complex body
B. Algae shows limited size and forms
C. Reproduce by fragmentation. Each fragment develops into a thallus
D. Most common spores produced are the zoospores that are non-flagellated.
10
113What change occur among boys and
girls during adolescence?
10
114State whether the following statements are true or false.

Accessory glands like seminal vesicles
contribute to the fluid substance of the
seminal fluid.
A. True
B. False

10
115Stage of life between childhood and
adulthood is known as
10
116What are the symptoms of puberty?
A. Growth spurt
B. High pitch voice
c. sprouting of pubic hairs
D. All of the above
10
117Pollination by bat is called
A. Ornithophily
B. Chiropterophily
c. Malacophily
D. Anemophily
10
118Cotyledon of maize grain is called as
A. Plumule
B. Coleorhiza
c. coleoptile
D. Scutellum
10
119Which of the following process of maintains the existence of the species
on the earth?
A. Metabolism
B. Reproduction
c. Adaptation
D. None of the above
10
120What are the risk factors for
adolescents?
10
121Offspring formed due to sexual
reproduction have better chances of survival. Why?
10
122The process of propagation of new
individual from the existing one is called as
A. Fertilization
B. Syngamy
c. Reproduction
D. Propagation
10
123The most conspicuous visible change that occurs in boys during puberty is
A. Breast development
B. Increase in height
c. Production of sperms
D. None of the above
10
124Which of the following is a ductless gland?
A. Exocrine gland
B. Endocrine gland
c. Thyroid gland
D. Pituitary gland
10
125At puberty,
A. Thigh bones elongate
B. Skull bones expand
C. Increase in number of bones of rib cage
D. Hip joint grows bigger
10
126The human body undergoes several changes during adolescence. These changes mark the onset of
A. Puberty
B. Prematurity
c. Post adolescence
D. Ageing
10
127Beer is prepared from
A. Maize
B. Barley
c. sugarcane
D. Grape
10
128Reproduction is one of the most important characteristics of living
beings. Give three reasons in support of the statement.
10
129Estradiol is known as the
A. Primary female sex hormone
B. Primary male sex hormone
c. secondary female sex hormone
D. Secondary sex hormone
10
130Decline in hearing power begins after the age of
A. 50 years
B. 35 years
c. 45 years
D. 10 years
10
131Which of the following is a sign of adolescence?
A. Increase in the volume of head hair
B. Decrease in body weight
c. sudden growth of height
D. Increase in energy
10
132What is follicular atresia?10
133The megasporangium of the angiosperms on maturation gives rise
to
A. cotyledons
B. Seed
c. Fruit
D. Endosperm
10
134At puberty women start producing
A. Sperms
B. Urine
c. Young ones
D. ova
10
135The stage during which the body becomes capable of reproduction is called
A. menstruation
B. puberty
c. menopause
D. adulthood
10
136Which statement describes human
cells formed by meiosis?
A. They are genetically identical and they become gametes.
B. They are genetically identical and they become tissues.
C. They are not genetically identical and they become gametes.
D. They are not genetically identical and they become tissues.
10
137The transfer of pollens from anther to stigma of the same flower is called as
A. Cross pollination
B. Self-fertilization
c. cross breeding
D. Hybridization
10
138Pubertal changes in boys include
A. Development of gonads
B. Voice change
C. Facial hair
D. All of the above
10

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