Questions
Which of the following statements is/are false?
a. In the asexual reproduction method, certain body cells of the parent organism undergo repeated mitotic cell divisions to form two or more new organisms of the same kind.
b. Humans, frogs, hens, etc. reproduce by the method of sexual reproduction.
c. In binary fission, the parent organism splits to form many new organisms at the same time.
- Only a
- Both a and b
- Only c
- Both b and c
- Only b
Which of the following flowers is/are bisexual?
a. Papaya
b. Hibiscus
c. Watermelon
d. Mustard
- Only a
- Both a and c
- Both b and d
- Only c
- Both c and d
The cells involved in sexual reproduction are called
- mucous cells
- gametes
- gonadotropes
- epidermal cells
- neurons
Which of the following is not a part of the female reproductive system?
- Ovary
- Epididymis
- Oviduct
- Uterus
- Vagina
The growth and development of a fertilised ovum into a baby takes place in the
- placenta
- ovaries
- cervix
- uterus
- vas deferens
The function of _______ is to make male sex cells and male sex hormones.
- scrotum
- epididymis
- testes
- vas deferens
- urethra
Which of the following birth control methods is not for females?
- Contraceptive diaphragm
- Oral contraceptive pill
- IUCD
- Vasectomy
- Tubectomy
The little stalk with swollen tops just inside the ring of petals in a flower is called
- carpel
- stamen
- receptacle
- sepal
- None of these
The sperms formed in the testes come out and go into a coiled tube called
- urethra
- seminal vesicle
- vas deferens
- epididymis
- scrotum
Which of the following is not a sexually transmitted disease?
- AIDS
- Syphilis
- Gonorrhoea
- Alzheimer's disease
- None of these
Which of the following diseases is/are caused by bacteria?
a. Syphilis
b. AIDS
c. Gonorrhoea
- Only b
- Both a and c
- Both b and c
- Both a and b
- Only c
Which of the following is a unicellular animal having short thread-like structures called cilia over its surface?
- Leishmania
- Paramecium
- Hydra
- Amoeba
- Plasmodium
Vegetative reproduction is done by using tubers in
- potato
- bryophyllum
- begonia
- rhizopus
- yeast
Match the following
| a. Regeneration | 1. It is the process of getting back a full organism from its body part. |
| b. Fragmentation | 2. It is the process in which new plants are obtained from the parts of old plants without the help of any reproductive organs. |
| c. Vegetative propagation | 3. It is the process of breaking up of the body of a simple multicellular organism into two or more pieces on maturing, each of which subsequently grows to form a complete new organism. |
- a - 1, b - 3, c - 2
- a - 1, b - 2, c - 3
- a - 3, b - 2, c - 1
- a - 3, b - 1, c - 2
- a - 2, b - 3, c - 1
Which of the following organisms reproduce by the method of binary fission?
- Amoeba
- Hydra
- Rhizopus
- Planaria
- Spirogyra
Which of the following statements is/are false?
a. In asexual reproduction, the offsprings arise from a single parent.
b. Sex cells are involved in asexual reproduction.
c. Some organisms use both asexual reproduction and sexual reproduction methods to reproduce whereas others use only one of these methods to reproduce.
- Only a
- Both a and b
- Only b
- Both b and c
- Only c
Match the following:
| a. Amoeba | 1. Grows outside the parent's body in the form of a bud |
| b. Hydra | 2. Comes out of eggs when the eggs hatch |
| c. Snake | 3. Splits into two parts to produce a new offspring |
- a - 2, b - 1, c - 3
- a - 1, b - 2, c - 3
- a - 1, b - 3, c - 2
- a - 3, b - 1, c - 2
- a - 3, b - 2, c - 1
Which of the following organisms reproduce by the method of regeneration?
- Planaria
- Rhizopus
- Amoeba
- Hydra
- Spirogyra
Which of the following carries genetic information from the parents to the offsprings?
- Nucleus
- RNA
- Ribosomes
- Mitochondria
- DNA
Reproduction by budding is observed in
a. yeast
b. plasmodium
c. hydra
d. amoeba
- Both a and c
- Both a and d
- Only b
- Both b and d
- Only d
Which of the following statements is/are false?
a. All the offsprings produced by one parent as a result of asexual reproduction are usually genetically identical.
b. The basis of asexual reproduction is mitosis that is a type of cell division that results in two daughter cells each having the same number and kind of chromosomes as the parent nucleus.
c. The transfer of pollen grains from the stigma of a carpel to the anther of a stamen is called pollination.
- Only a
- Both a and b
- Only b
- Both b and c
- Only c
The offsprings formed by asexual reproduction method have greater similarity among themselves because
a. asexual reproduction involves two parents
b. asexual reproduction involves only one parent
c. asexual reproduction does not involve gametes
d. asexual reproduction involves gametes
- Only a
- Only d
- Both b and c
- Both a and b
- Both a and d
Which of the following reproduces by vegetative propagation by using either a piece of its stem or its leaves?
- Rhizopus
- Yeast
- Bryophyllum
- Spirogyra
- Mucor
Man-made method of growing many plants from one plant is
- fission
- budding
- regeneration
- fragmentation
- cutting
Rapid spreading of bread mould on slices of bread is due to
- formation of round shaped sporangia.
- absence of spores in air.
- presence of large number of thread like branched hyphae.
- absence of moisture and nutrients.
- presence of moisture and nutrients.
Which of the following organisms show regeneration?
a. Spirogyra
b. Hydra
c. Planaria
d. Rhizopus
- Both a and d
- Only a
- Both a and b
- Both b and c
- Only d
Which of the following methods of asexual reproduction is used by unicellular organisms as well as by multicellular organisms?
- Regeneration
- Budding
- Spore formation
- Fission
- None of these
A simple multicellular animal having tentacles and living in freshwater reproduces by
- budding
- spore formation
- regeneration
- fission
- vegetative propagation
Which of the following plants can be grown by the method of cutting?
- Guava
- Hibiscus
- Bougainvillea
- Apple
- Peach
Which of the following features is common in amoeba, bacterium and yeast?
- Some of them are unicellular organisms.
- They all have tentacles.
- They all reproduce only sexually.
- Amoeba, bacterium and yeast are all multicellular organisms.
- They all reproduce asexually.
Which of the following plants cannot be grown by the method of layering?
- China rose
- Strawberry
- Lemon
- Cactus
- Guava
The green, leaf-like part in the outermost circle of a flower is called
- sepal
- receptacle
- petals
- stamen
- carpel
Which of the following is not an advantage of artificial vegetative propagation?
- Many plants can be grown from just one parent plant by artificial propagation.
- The new plants produced by this method will be exactly like the parent plants.
- The fruit trees grown by this method start to bear fruits only after a few growing seasons.
- The plants grown by vegetative propagation usually need less attention in their early years than the plants grown from seeds.
- The plants are less prone to diseases in artificial vegetative propagation method.
In which of the following methods of asexual reproduction in plants is callus produced?
- Vegetative propagation
- Fragmentation
- Micropropagation
- Regeneration
- Budding
Which of the following is the male reproductive organ of a plant?
- Petal
- Carpel
- Sepal
- Receptacle
- Stamen
Which of the following parts is made up of a filament and an anther?
- Stigma
- Style
- Ovary
- Stamen
- Sepal
The male gametes of a plant are made in the
- stigma
- anther
- style
- ovary
- sepal
Which of the following statements is/are false?
a. Flowering plants reproduce by asexual reproduction methods.
b. The sex organ of a plant is in its flowers.
c. The function of a flower is to make male and female gametes and to ensure that fertilisation will take place to make new seeds for the reproduction of the plant.
- Only a
- Both a and b
- Only b
- Both b and c
- Only c
Which of the following statements is/are false?
a. The new plant formed from a cutting is never similar to the parent plant.
b. By using cutting method, one can produce many new plants from just one plant quickly, without waiting for the flowers or seeds.
c. The cut stem of a plant having roots fixed in the soil is called stock.
- Only a
- Both a and b
- Only b
- Both b and c
- Only c
The function of ________ is to protect a flower in its initial stages.
- style
- stamen
- calyx
- stigma
- petal
Which of the following statements is/are false?
a. The method in which a zygote grows and develops into a full organism varies in different organisms.
b. The fertilisation which occurs inside a body is called internal fertilisation.
c. Asexual reproduction promotes diversity of characters in the offsprings by providing genetic variation.
- Only a
- Both a and b
- Only b
- Both b and c
- Only c
Match the following:
| a. Stigma | 1. It is the swollen part at the bottom of a carpel. |
| b. Style | 2. It is the top part of a carpel. |
| c. Ovary | 3. It is the middle part of a carpel. |
- a - 2, b - 1, c - 3
- a - 3, b - 2, c - 1
- a - 1, b - 2, c - 3
- a - 1, b - 3, c - 2
- a - 2, b - 3, c - 1
Which of the following is a change that occurs in boys and girls at puberty?
- Mensuration starts
- The voice deepens
- Hair growth under armpits and in pubic region
- Ovaries start making progesterone hormone
- Fallopian tubes enlarge
In which of the following organisms does fertilisation occur inside the female's body?
- Frogs
- Toads
- Fishes
- Birds
- None of these
________ is the oval-shaped organ inside the abdominal cavity of a women near the kidneys.
- Oviduct
- Uterus
- Ovary
- Cervix
- Vas deferens
Match the following:
| a. Sperm | 1. It is the male sex cell of an animal. |
| b. Zygote | 2. It is the female sex cell of an animal. |
| c. Ova | 3. It is the cell that is formed by the fusion of a male gamete and a female gamete. |
- a - 1, b - 3, c - 2
- a - 1, b - 2, c - 3
- a - 3, b - 2, c - 1
- a - 3, b - 1, c - 2
- a - 2, b - 3, c - 1
Which of the following is formed when ovum is fertilised in the oviduct?
- A zygote
- A foetus
- An embryo
- A placenta
- None of these
Through which of the following parts does the exchange of nutrients, oxygen and waste products between the embryo and the mother take place?
- Cervix
- Ovaries
- Placenta
- Uterus
- Epididymis
The fertilisation of ovum by a sperm takes place in
- uterus
- placenta
- ovaries
- oviduct
- cervix
Match the following:
| a. Menarche | 1. It is the permanent stoppage of mensuration in women. |
| b. Ovulation | 2. It is the first occurrence of mensuration at puberty. |
| c. Menopause | 3. It is the release of an ovum from an ovary. |
- a - 2, b - 1, c - 3
- a - 2, b - 3, c - 1
- a - 3, b - 2, c - 1
- a - 1, b - 2, c - 3
- a - 1, b - 3, c - 2
Which of the following statements is/are false?
a. Flowers that contain only one sex organ are called unisexual flowers.
b. A new seed of a plant is formed when the male gamete present in a pollen grain unites with a female gamete present in the ovule.
c. Each ovule contains many female gametes of a plant.
- Only a
- Both a and b
- Only b
- Only c
- Both b and c