Reproductive Methods in Unicellular Organisms

False (B)

Binary fission in Leishmania occurs in a definite orientation in relation to its whip-like structure.

<p>fragmentation</p> Signup and view all the answers

<p>Amoeba = Binary fission Plasmodium = Multiple fission Yeast = Budding Spirogyra = Fragmentation</p> Signup and view all the answers

<p>Leishmania (C)</p> Signup and view all the answers

<p>False (B)</p> Signup and view all the answers

<p>Observation under a microscope.</p> Signup and view all the answers

<p>Budding (D)</p> Signup and view all the answers

<p>False (B)</p> Signup and view all the answers

<p>Plants produced by vegetative propagation can bear flowers and fruits earlier than those produced from seeds.</p> Signup and view all the answers

<p>vegetative propagation</p> Signup and view all the answers

<p>Budding = A process where an outgrowth develops into a new individual from the parent. Vegetative Propagation = Reproduction through parts of a plant under suitable conditions. Fragmentation = A method where a part of an organism separates and grows into a new individual. Grafting = Joining parts of two different plants to grow a new plant.</p> Signup and view all the answers

<p>Banana (A)</p> Signup and view all the answers

<p>False (B)</p> Signup and view all the answers

<p>They detach from the parent body and become new independent individuals.</p> Signup and view all the answers

<p>The pollen needs to be transferred to the stigma (C)</p> Signup and view all the answers

<p>False (B)</p> Signup and view all the answers

<p>zygote</p> Signup and view all the answers

<p>ovary</p> Signup and view all the answers

<p>Gonorrhoea (A)</p> Signup and view all the answers

<p>False (B)</p> Signup and view all the answers

<p>Self-pollination = Pollen transfer within the same flower Cross-pollination = Pollen transfer between different flowers Germination = The process of seed developing into a seedling Fertilization = Fusion of male and female gametes</p> Signup and view all the answers

<p>To prevent pregnancy</p> Signup and view all the answers

<p>A tube (C)</p> Signup and view all the answers

<p>False (B)</p> Signup and view all the answers

<p>condom</p> Signup and view all the answers

<p>Condom = Mechanical barrier preventing sperm from reaching the egg Hormonal pills = Alters hormonal balance to prevent ovulation Copper-T = Placed in the uterus to prevent pregnancy Vasectomy = Surgical method to block sperm transfer</p> Signup and view all the answers

<p>embryo</p> Signup and view all the answers

<p>Hormonal imbalance (C)</p> Signup and view all the answers

<p>True (A)</p> Signup and view all the answers

<p>vas deferens</p> Signup and view all the answers

<p>Gender imbalance in society (C)</p> Signup and view all the answers

<p>False (B)</p> Signup and view all the answers

<p>They produce seminal fluid that nourishes and helps transport sperm.</p> Signup and view all the answers

<p>reproduction</p> Signup and view all the answers

<p>Asexual reproduction = Involves a single individual Sexual reproduction = Involves two individuals Fission = Division into two or more cells Vegetative propagation = New plants from roots, stems, or leaves</p> Signup and view all the answers

<p>Menstrual cycle begins (C)</p> Signup and view all the answers

<p>False (B)</p> Signup and view all the answers

<p>Through the placenta, which transfers nutrients from the mother to the embryo.</p> Signup and view all the answers

<p>Uterus (B)</p> Signup and view all the answers

<p>False (B)</p> Signup and view all the answers

<p>Pollination</p> Signup and view all the answers

<p>sperms</p> Signup and view all the answers

<p>Ovaries = Produce eggs Fallopian tubes = Site of fertilisation Vagina = Birth canal Penis = Delivers sperm</p> Signup and view all the answers

<p>Copper-T (A)</p> Signup and view all the answers

<p>Increase in breast size in girls and facial hair growth in boys</p> Signup and view all the answers

<p>False (B)</p> Signup and view all the answers

A type of asexual reproduction where a single-celled organism divides into two identical daughter cells.

A single-celled organism that causes kala-azar and divides using binary fission in a specific orientation.

A process of asexual reproduction in which a single-celled organism divides into many daughter cells simultaneously.

A single-celled organism that causes malaria and reproduces through multiple fission.

A type of asexual reproduction where a small bud grows on the parent organism and eventually detaches to become a new individual.

A simple form of asexual reproduction in which a multicellular organism breaks into fragments, each of which can develop into a new individual.

A green alga that reproduces by fragmentation.

A group of cells that work together to perform a specific function in a multicellular organism.

The process of a pollen grain from one flower reaching a suitable stigma and eventually fertilizing the female gamete in the ovule.

The fusion of the male gamete (from pollen grain) with the female gamete (egg cell) within the ovule.

The pollen is transferred from the stamen to the stigma of the same flower.

The pollen is transferred from the stamen of one flower to the stigma of another flower.

The tube that grows out of the pollen grain after landing on the stigma and travels through the style to reach the ovary.

The tough coat that develops around the fertilized ovule, containing the embryo.

The process of a seed developing into a seedling under favorable conditions.

The swollen part of the flower containing ovules, each with an egg cell.

A covering worn on the penis during sex to help prevent the transmission of sexually transmitted infections (STIs).

A type of contraceptive method that physically prevents sperm from reaching the egg. This can include condoms, diaphragms, or cervical caps.

Contraceptive methods that alter the hormonal balance of the body to prevent ovulation, making pregnancy less likely.

A device inserted into the uterus to prevent pregnancy. It can be made of copper or plastic.

A surgical procedure for men to prevent sperm from being released during ejaculation.

A surgical procedure for women to prevent eggs from reaching the uterus.

The deliberate termination of a pregnancy, often referred to as abortion. It can be performed surgically or medically.

The practice of selectively aborting female fetuses, often due to cultural or societal pressures.

A process where an organism can regrow lost or damaged body parts. It's not the same as reproduction, as it doesn't create new individuals.

A type of asexual reproduction in plants where new plants are formed from parts like roots, stems, or leaves. This allows for quicker reproduction and preserving desired traits.

A specific type of vegetative propagation where a stem of the plant is bent and covered with soil, encouraging roots to develop and forming a new plant.

A method of multiplying plants by joining a scion (a cutting from a desired plant) to a rootstock (existing plant) to encourage them to fuse and grow together, thus creating a new hybrid plant.

Used for vegetative propagation in plants, this method involves planting a piece of the stem that contains an eye, known as a bud, to grow a new plant.

The small, notch-like structure on the surface of a potato containing a bud, a major component for successful vegetative propagation in potatoes.

A specialized structure on plants used for vegetative propagation, containing the potential for new growth. They are also known as 'eyes'.

The process in which pollen grains from the male part of a flower are transferred to the female part of the same or another flower.

Seminal vesicles produce a fluid that nourishes and helps sperm move. The prostate gland produces a fluid that helps activate sperm.

During puberty, girls experience physical changes like breast development, widening hips, and the beginning of menstruation.

The embryo receives nourishment through the placenta, a structure that connects the embryo to the mother's uterus.

A copper-T is a type of intrauterine device (IUD) that prevents pregnancy but does not protect against sexually transmitted diseases.

A process where an organism makes a copy of its DNA and builds new cellular structures to create offspring.

The process can be asexual, involving one parent, or sexual, involving two parents.

A type of asexual reproduction where a single parent cell divides to create two or more identical daughter cells.

The process in which a sperm fertilizes an egg, leading to the formation of a zygote and the development of a new organism.

The male reproductive organs in humans, including the testes, vas deferens, seminal vesicles, prostate gland, urethra, and penis.

The female reproductive organs in humans, including the ovaries, fallopian tubes, uterus, and vagina.

The introduction of sperm into the vagina of a female, a necessary step for fertilization.

The process in which the lining of the uterus is shed monthly, resulting in menstrual bleeding. It occurs if fertilization does not take place.

Methods used to prevent pregnancy, such as condoms, oral pills, and copper-T devices.

Changes in the body that occur during puberty, including increased breast size in girls and facial hair growth in boys. These changes signal sexual maturity.