Tag: introduction to inflorescence

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Multiple choice botany inflorescence introduction to inflorescence inflorescence and its type basics of leaf and flower

Arrangement of flowers on the floral axis of plant is called?

  1. Inflorescence

  2. Phyllotaxy

  3. Placentation

  4. Corymb
Reveal answer Fill a bubble to check yourself
A Correct answer
Explanation
A. An inflorescence is the arrangement of flowers on the floral axis of the plant. Two major types of the inflorescence are - 1. Racemose - the shoot axis continues to grow indefinitely and the flowers are borne in acropetal succession. Examples are radish, Lupin, and mustard. 2. Cymose - the main axis terminates into a flower and has a limited growth and the flowers are borne in a basipetal order. Examples are begonia, teak, and Solanum.
B. Phyllotaxy is the pattern in which the leaves are arranged on the stem or its branches. The leaves are arranged in three ways - 1. Alternate - single leaf is present at each node in the alternate fashion. Examples are China rose, mustard, and sunflower. 2. Opposite - a pair of leaves arise at each node on the opposite side, the leaves lie opposite to each other at each node. Examples are guava and calotropis. 3. Whorled - more than two leaves arise at each node and form a whorl or a circle, the leaves of one whorl alternate the leaves of the next successive whorl so that all the leaves receive maximum sunlight. Examples are Alstonia and Nerium.
C. Placentation is the arrangement of ovules on placenta within the ovary. It is of six types- marginal, axile, parietal, free central and basal.
D. A corymb is lower flowers have long pedicels than upper ones so that all the flowers are brought more or less to the same level. The main axis is short. Examples are Iberis and Capsella.

So, the correct answer is 'inflorescence'.
Multiple choice botany reproductive morphology introduction to inflorescence inflorescence and its type basics of leaf and flower

An inflorescence with single, oldest, female flower and many younger male flower has to be

  1. verticillaster

  2. hypanthodium

  3. spike

  4. cyathium.
Reveal answer Fill a bubble to check yourself
D Correct answer
Explanation

An inflorescence with single, oldest, female flower and many younger male flowers is cyathium. For example, inflorescence in Euphorbia

So, the correct answer is 'cyathium.'

Multiple choice botany reproductive morphology introduction to inflorescence inflorescence and its type basics of leaf and flower

In an inflorescence where flowers are borne laterally in an acropetal succession, the position of the youngest floral bud shall be

  1. Proximai

  2. Distal

  3. Intercalary

  4. Anywhere
Reveal answer Fill a bubble to check yourself
B Correct answer
Explanation
In race mose inflorescence younger flowers are born at the apex or distal end while older flowers are at the base, this type of succession is acropetal succession. Thus, the position of youngest floral but would be distal. 
Correct option is B.
Multiple choice botany reproductive morphology introduction to inflorescence inflorescence and its type basics of leaf and flower

Which type of fruit is found in rice

  1. Legume

  2. Caryopsis

  3. Drupe

  4. Berry
Reveal answer Fill a bubble to check yourself
B Correct answer
Explanation

The type of fruit that is found in rice is Caryopsis. Caryopsis is a type of simple dry fruit—one that is monocarpellate (formed from a single carpel) and indehiscent (not opening at maturity) and resembles an achene, except that in a caryopsis the pericarp is fused with the thin seed coat.

So, the correct answer is 'Caryopsis'