Tag: botany

Quizzes (264) Questions (5276)

Questions Related to botany

Multiple choice botany flower taxonomic description of flower technical terms related to flowers basics of leaf and flower

Among bitter gourd, mustard, brinjal, pumpkin, china rose, lupin, cucumber, sun hemp, gram, guava, bean, chilli, plum, petunia, tomato, rose, withania, potato, onion, aloe, and tulip how many plants have hypogynous flower?

  1. Ten

  2. Fifteen

  3. Eighteen

  4. Six
Reveal answer Fill a bubble to check yourself
A Correct answer
Explanation

Hypogynous flowers have the gynoecium situated at the highest position on the thalamus. Among the listed plants, mustard, brinjal, china rose, lupin, gram, bean, chilli, petunia, tomato, and withania are hypogynous, totaling ten.

Multiple choice botany flower taxonomic description of flower technical terms related to flowers basics of leaf and flower

The cloves, which are used in food preparation are.

  1. Seeds

  2. Leaves

  3. Flower buds

  4. Stem tips
Reveal answer Fill a bubble to check yourself
C Correct answer
Explanation

Cloves are the dried flower buds of an evergreen tree native to eastern Indonesia. Cloves are a versatile spice that can be used in drinks and in both sweet and savoury dishes. 

So, the correct option is 'Flower buds'.

Multiple choice botany flower taxonomic description of flower technical terms related to flowers basics of leaf and flower

Biennials are

  1. Plants, which remain vegetative in first growing season but produce flowers in the next season.

  2. Plants producing flowers twice in their lifecycle.

  3. Plants, which flower many times.

  4. Plants finishing their lifecycle in one season only.
Reveal answer Fill a bubble to check yourself
A Correct answer
Explanation

Biennials are plants, that complete their life cycle in two growing seasons. They produce rosettes of leaves and sometimes the stems the first year, but do not flower until the second, after which they die.

Multiple choice botany flower taxonomic description of flower technical terms related to flowers basics of leaf and flower

For the basis of classification of kingdom plantae the floral characters of higher plants are taken as a basis, because

  1. Flowers can easily preserved

  2. Show great-variety in colours and structures

  3. Reproductive parts are more conservative

  4. None of the above
Reveal answer Fill a bubble to check yourself
C Correct answer
Explanation

Classification of higher plants  is based on  floral characters, because floral characters are more stable and permanent.

Multiple choice botany flower taxonomic description of flower technical terms related to flowers basics of leaf and flower

In a hypogynous flower?

  1. The thalamus is cup shaped

  2. The thalamus is conical shaped

  3. The thalamus is disc shaped

  4. The thalamus is fusiform
Reveal answer Fill a bubble to check yourself
B Correct answer
Explanation

In a hypogynous flower, the gynoecium occupies the highest position while the other floral parts are inserted below it, and the thalamus is typically conical or convex shaped.

Multiple choice botany flower taxonomic description of flower technical terms related to flowers basics of leaf and flower

Mark the correct statement.

  1. A flower having sepals, petals, stamens and pistils is complete.

  2. Stamens and pistils are not present together in all flowers.

  3. When both are present the flower is said to be perfect.

  4. All of the above.
Reveal answer Fill a bubble to check yourself
D Correct answer
Explanation

A bisexual flower is a flower that contains all the four whorls such as petals, sepals, the male reproductive structure (stamen) and female reproductive structure (pistil). Hence it is also called as a complete or perfect flower. 

Flowers which contain only three whorls such as petals, sepals, the male reproductive structure (stamen) or female reproductive structure (pistil) is said to be a unisexual or incomplete flower. 

Multiple choice botany flower taxonomic description of flower technical terms related to flowers basics of leaf and flower

Which one of the following statements is not correct?

  1. Unisexual flowers exhibit cross pollination.

  2. Unisexual flowers possess both stamen and pistil.

  3. After fertilisation, flowers give rise to fruits.

  4. The sequence of events of sexual reproduction in a flower is: pollination, fertilisation, embryo, seed.
Reveal answer Fill a bubble to check yourself
B Correct answer
Explanation

Unisexual flower is the one that possesses either stamens or carpels but not both.
Flowers give rise to fruit and seeds.
Thus, the correct answer is option (B), 'Unisexual flowers possess both stamen and pistil'.