1.
What is the main function of the male reproductive system in humans?
Correct Answer
C. To produce sperm
Explanation
The main function of the male reproductive system is to produce sperm.
2.
Which part of the female reproductive system is responsible for the development of eggs?
Correct Answer
A. Ovaries
Explanation
The ovaries are responsible for the development of eggs in the female reproductive system.
3.
How does reproduction occur in lower animals like amoeba?
Correct Answer
A. Asexual reproduction
Explanation
Lower animals like amoeba reproduce through a process called asexual reproduction.
4.
Which part of a flower contains the female reproductive organs?
Correct Answer
A. Stigma
Explanation
The stigma of a flower contains the female reproductive organs.
5.
What is the process of sexual reproduction in plants?
Correct Answer
D. Fertilization
Explanation
The process of sexual reproduction in plants involves fertilization.
6.
Which of the following is NOT a part of the male reproductive system?
Correct Answer
C. Ovary
Explanation
The ovary is part of the female reproductive system, not the male reproductive system.
7.
Where are the testes located in the male reproductive system?
Correct Answer
A. Inside the scrotum
Explanation
The testes are located inside the scrotum, outside the body, to maintain a lower temperature required for sperm production.
8.
Which structure stores mature sperm cells in the male reproductive system?
Correct Answer
B. Epididymis
Explanation
The epididymis is a coiled tube where mature sperm cells are stored until they are released during ejaculation.
9.
What is the function of the prostate gland in the male reproductive system?
Correct Answer
C. Production of seminal fluid
Explanation
The prostate gland produces seminal fluid, which mixes with sperm cells and other fluids to form semen.
10.
Which structure carries both urine and semen out of the male body?
Correct Answer
D. Urethra
Explanation
The urethra is a tube that carries both urine and semen out of the male body, but not simultaneously.
11.
Which of the following is a primary reproductive organ in females?
Correct Answer
A. Ovaries
Explanation
The ovaries are the primary reproductive organs in females. They produce eggs and release hormones like estrogen and progesterone.
12.
What is the main function of the fallopian tubes?
Correct Answer
C. To transport eggs from the ovaries to the uterus
Explanation
The main function of the fallopian tubes, also known as uterine tubes, is to facilitate the transport of eggs (ova) from the ovaries to the uterus. These tubes provide a pathway for the egg to meet with sperm for fertilization to occur. Additionally, the fallopian tubes play a crucial role in the early development of the fertilized egg before it travels to the uterus for implantation and further development into a pregnancy.
13.
Which hormone prepares the uterus for pregnancy?
Correct Answer
B. Progesterone
Explanation
Progesterone prepares the uterus for pregnancy by thickening the uterine lining and maintaining its supportive environment.
14.
Which of the following is the role of the cervix in the female reproductive system?
Correct Answer
D. To connect the uterus to the vagina and allow sperm entry
Explanation
The cervix connects the uterus to the vagina in the female reproductive system. It also allows the entry of sperm during sexual intercourse.
15.
What is the female reproductive part of a flower called?
Correct Answer
D. Pistil
Explanation
The female reproductive part of a flower is called the pistil. It consists of the stigma, style, and ovary, where the ovules are located.
16.
Which process involves the transfer of pollen grains from the anther to the stigma tip?
Correct Answer
B. Pollination
Explanation
The process that involves the transfer of pollen grains from the anther to the stigma tip is called pollination. It is necessary for the fertilization of the flower.
17.
What is the male reproductive part of a flower called?
Correct Answer
A. Stamen
Explanation
The male reproductive part of a flower is called the stamen. It consists of the filament and anther, where the pollen grains are produced.
18.
What is the process of fusion of the male and female gametes called?
Correct Answer
A. Fertilization
Explanation
The process of fusion of the male and female gametes is called fertilization. It occurs after successful pollination and leads to the formation of seeds.
19.
Which part of the flower develops into the fruit?
Correct Answer
D. Ovary
Explanation
The ovary is the part of the flower that develops into the fruit. After fertilization, the ovary undergoes changes and transforms into a mature fruit containing seeds.
20.
Which process involves the growth and development of a new plant from a seed?
Correct Answer
C. Germination
Explanation
The process that involves the growth and development of a new plant from a seed is called germination. It requires favorable conditions such as water, warmth, and oxygen.
21.
What is the purpose of a flower's petal?
Correct Answer
A. Attract pollinators
Explanation
The purpose of a flower's petal is to attract pollinators such as insects, birds, or bats. Bright colors and attractive patterns make the flower more noticeable.
22.
Which structure connects the stigma to the ovary in a flower?
Correct Answer
D. Style
Explanation
The structure that connects the stigma to the ovary in a flower is called the style. It provides support for the stigma and allows pollen to travel towards the ovary.
23.
What is the purpose of pollen in plant reproduction?
Correct Answer
D. To transfer male gametes
Explanation
The purpose of pollen in plant reproduction is to transfer male gametes (sperm cells) from the anther to the stigma. This is essential for fertilization to occur.
24.
Which process is responsible for the production of food in plants?
Correct Answer
D. pHotosynthesis
Explanation
The process responsible for the production of food in plants is photosynthesis. It occurs in the leaves, where plants use sunlight, carbon dioxide, and water to produce glucose and oxygen.
25.
What is a form of asexual reproduction in lower animals?
Correct Answer
A. Budding
Explanation
Budding is a form of asexual reproduction in which a new organism develops as an outgrowth or bud from the parent organism.
26.
Which of the following is an example of external fertilization in lower animals?
Correct Answer
A. AmpHibians
Explanation
Amphibians, such as frogs and toads, perform external fertilization where the eggs and sperm are released into the environment for fertilization to occur.
27.
What is a common mode of reproduction in sponges?
Correct Answer
D. Budding
Explanation
Budding is a common mode of reproduction in sponges, where new individuals arise as outgrowths from the parent sponge.
28.
What is the process of laying eggs called?
Correct Answer
A. Oviposition
Explanation
The process of laying eggs is called oviposition. It refers to the deposition or laying of eggs by female animals.
29.
Which is a method of reproduction specific to flatworms?
Correct Answer
B. HermapHroditism
Explanation
Hermaphroditism is a method of reproduction specific to flatworms, where a single individual possesses both male and female reproductive organs.
30.
What is the primary reproductive organ in male insects?
Correct Answer
B. Testis
Explanation
The primary reproductive organ in male insects is the testis. It produces sperm that is transferred to the female during mating.
31.
Which of the following is a method of asexual reproduction in starfish?
Correct Answer
A. Fragmentation
Explanation
Fragmentation is a method of asexual reproduction in starfish, where a single individual breaks into multiple fragments, each of which can develop into a new starfish.
32.
How do hydra reproduce?
Correct Answer
C. Budding
Explanation
Hydra reproduce primarily through asexual reproduction by budding, where an outgrowth forms on the parent hydra and eventually detaches to become a new individual.