$CATEGORY: Science - Khan Academy/8.How do Organisms Reproduce?/8.How do Organisms Reproduce?--Sexual Reproduction

//Multiple Choice

What does a unisexual flower contain? {
    ~Only male parts
    ~Only female parts
    =Either a or b
    ~Both male and female parts
}

Which of the following is an example of a unisexual flower? {
    ~Rose
    =Papaya
    ~Hibiscus
    ~None of the above
}

A bisexual flower contains which of the following? {
    ~Only stamens
    ~Only carpels
    =Both stamens and carpels
    ~Neither stamens nor carpels
}

Which of the following is an example of a bisexual flower? {
    ~Papaya
    =Hibiscus
    ~Maize
    ~Coconut
}

What is the term for a flower that has both male and female reproductive parts? {
    ~Unisexual
    =Bisexual
    ~Asexual
    ~Dioecious
}

Which part of the flower is considered the male reproductive organ? {
    ~Carpel
    =Stamen
    ~Ovary
    ~Style
}

Which part of the flower is considered the female reproductive organ? {
    ~Filament
    ~Stigma
    =Carpel
    ~Anther
}

Unisexual flowers are commonly found in which of the following plants? {
    ~Hibiscus and Rose
    =Papaya and Maize
    ~Mustard and Lotus
    ~Sunflower and Lily
}

What is the term for plants that bear only male or female flowers? {
    ~Monoecious
    =Dioecious
    ~Bisexual
    ~Asexual
}

Which of the following statements is true about bisexual flowers? {
    ~They have only male reproductive parts.
    ~They have only female reproductive parts.
    =They have both male and female reproductive parts in the same flower.
    ~They lack reproductive parts.
}

//True or False

A unisexual flower has both male and female reproductive parts. {F}

Hibiscus is an example of a bisexual flower. {T}

Unisexual flowers are found in papaya and maize. {T}

The stamen is the female reproductive part of a flower. {F}

The carpel is the male reproductive part of a flower. {F}

Monoecious plants bear both male and female flowers on the same plant. {T}

Dioecious plants have male and female flowers on separate plants. {T}

Pollination is the transfer of pollen grains from the anther to the ovule. {F}

A bisexual flower can self-pollinate. {T}

All flowers are either unisexual or bisexual. {T}

//Fill in the blanks

A flower that has both stamens and carpels is called a _______ flower. {
    ~Unisexual
    =Bisexual
    ~Asexual
    ~Dioecious
}

A unisexual flower has _______ reproductive part(s). {
    ~Both male and female
    =Only one
    ~No
    ~All
}

Flowers like papaya and maize are examples of _______ flowers. {
    ~Bisexual
    =Unisexual
    ~Asexual
    ~None of the above
}

The male reproductive organ of a flower is called the _______. {
    ~Carpel
    =Stamen
    ~Ovary
    ~Style
}

The female reproductive organ of a flower is called the _______. {
    ~Stigma
    ~Ovary
    =Carpel
    ~Anther
}

In unisexual flowers, either _______ or _______ is present. {
    ~Petals, Sepals
    =Stamens, Carpels
    ~Ovary, Ovule
    ~Filament, Anther
}

Plants like coconut and maize, which bear both male and female flowers on the same plant, are called _______ plants. {
    ~Dioecious
    =Monoecious
    ~Bisexual
    ~Asexual
}

A flower that has either male or female reproductive parts is called a _______ flower. {
    ~Bisexual
    =Unisexual
    ~Asexual
    ~Neutral
}

The _______ is the part of the flower where pollen grains are produced. {
    ~Filament
    =Anther
    ~Style
    ~Ovary
}

The _______ is the sticky surface of the carpel that receives pollen grains. {
    ~Ovule
    =Stigma
    ~Style
    ~Sepal
}

//Numericals

A plant has 5 unisexual flowers, and each flower has 10 stamens. How many stamens are present in total? {
    ~25
    =50
    ~100
    ~10
}

If a bisexual flower has 2 stamens and 1 carpel, how many reproductive parts are present in total? {
    ~1
    ~2
    =3
    ~4
}

A plant produces 8 flowers, and 50% of them are unisexual. How many unisexual flowers are there? {
    ~2
    =4
    ~6
    ~8
}

If a flower has 4 stamens and each stamen produces 200 pollen grains, how many pollen grains are produced in total? {
    ~400
    =800
    ~1000
    ~2000
}

A plant has 3 unisexual male flowers and 2 unisexual female flowers. How many flowers does the plant have in total? {
    ~3
    ~2
    =5
    ~6
}

A flower has 6 carpels, and each carpel contains 5 ovules. How many ovules are present in total? {
    =30
    ~15
    ~10
    ~25
}

A monoecious plant produces 20 flowers, 12 of which are male. How many female flowers does it produce? {
    =8
    ~10
    ~12
    ~15
}

If a plant has 15 flowers, and 60% of them are bisexual, how many bisexual flowers are there? {
    ~5
    ~7
    =9
    ~12
}

A dioecious plant has 10 flowers, and 40% of them are male. How many male flowers does it have? {
    ~2
    =4
    ~6
    ~8
}

A bisexual flower has 5 stamens and 3 carpels. How many reproductive structures are there in total? {
    ~5
    ~3
    =8
    ~10
}

//Match the following

Match the following items from Column A with their correct corresponding options from Column B\:
{
=Bisexual flower -> Hibiscus
=Unisexual flower -> Papaya
=Male part of the flower -> Stamen
=Female part of the flower -> Carpel
}


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