MCQ ON CALYX AND COROLLA / CALYX AND COROLLA class 11 for NEET | CALYX AND COROLLA class 11| MCQ CALYX AND COROLLA with Answer | Check the below NCERT MCQ question for class 11Biology based on the with Answers.
MCQ on CALYX AND COROLLA class 11Biology with answers were prepared based on the latest pattern.We have provided class 11 Biology MCQs question with Answers to help students understand the concept very well.
MCQ ON CALYX AND COROLLA / CALYX AND COROLLA class 11 for NEET
MCQ ON CALYX AND COROLLA is useful for NEET / CSIR / UGC / CBSE / ICSE / AIIMS / EXAM / AFMC EXAM / STATE LEVEL MEDICAL EXAM/ KVS PGT BIOLOGY / NVS PGT BIOLOGY EXAM 2023-2024 ,2025
INTRODUCTION:-
CALYX:-
Calyx is the outermost whorl of the flower and the members are called sepals.
Generally , sepals are green , leaf – like and protect the flower in the bud stage.The calyx may be gamopetalous sepals united or polysepalous sepals free.
COROLLA:-
Corolla is composed of petals.Petals are usually brightly coloured to attract insects for pollination. Like calyx corolla may be also united gamosepalous petals united or polysepalous petals free.
The shape and colour of Corolla vary greatly in plants.
Corolla may be tubular , bell-shaped , funnel – shaped or wheel – shaped.
GYNOECIUM :-
Gynosium is the female reproductive part of the flower and is made of one more carpels.
A carpel consist of three parts namely stigma style and ovary.
Ovary is the enlarged basal part , on which lies the elongated tube, the style .
The style connects the ovary to the stigma.
Stigma is the usually tip of the style and is the receptive surface for pollen grains .
Each ovary bears one or more ovules attached to a flattened, cushion like placenta.
When more than one carpel is present , there may be free as in Lotus and rose and are called Apocarpous.
They are termed as Syncarpous when carpels are fused as in mustard and tomato.
After fertilisation , the ovules develop into seeds and the ovary matures into a fruit.
Androecium is composed of stamens.Each stamens which represents the male reproductive organ consists of a stalk or a filament and an anther.
Each anther is usually bilobed and each lobe has two chambers , the pollen sacs. The pollen grains are produced in pollen-sacs.A sterile stamen is staminode .
Stamens of flower may be united with other members such as petals or among themselves .
When stamens are attached to the petals , they are epipetalous as in brinjal
Epiphyllous when attached to the perianth as in the flower of Lily.
The stamens in a flower may either remain free ( polyandrous) or may be united in varying degrees .
The stamens may be united into bunch or one bundle ( monoadelphous) as in China rose or two bundles (diadelphous) as in pea , or into more than two bundles (polydelphous) as in citrus.
There may be variations in the length of filaments within a flower as in salvia and mustard.
MCQ ON CALYX AND COROLLA class 11 for NEET/KVS PGT BIOLOGY / NVS PGT BIOLOGY EXAM 2023-2024,2025
1. The outermost whorls of the flower.
(a) stamens
(b) andriecium
(c) gynoecium
(d) calyx
Ans (d) calyx
2. The members of calyx is
(a) carpels
(b) stamen
(c) imbricate and vexillary
(d) sepals
Ans. (d) sepals
3.The part of flower are green , leaf like and protect the flower in the bud stage.
(a) stigma
(b) sepals
(c) ovary
(d) all the above
Ans. (b) sepals
4.The calyx may be gamosepalous when
(a) sepals united
(b) stigma united
(c) ovary free
(d) sepals free
Ans.(a) sepals United
5. The calyx are polysepalous when
(a) sepals are free
(b) staminode
(c) ovule are free
(d) stamen are United
Ans.(a) sepals are free
6. Corolla is composed of
(a) stigma
(b) petals
(c) epiphyllous
(d) ovary
Ans.(b) petals
7.The part of flowers are usually brightly coloured to attract insects for pollination.
(a) staminode
(b) epipetalous
(c) epiphyllous
(d) petals
Ans.(d) petals
8.Like calyx , corolla may be also united called
(a) apocarpous
(b) syncarpous
(c) epiphyllous
(d) gamopetalous
Ans.(d) gamopetalous
9. Gamopetalous means
(a) petals free
(b) petals united
(c) sepals free
(d) sepals united
Ans. (b) petals united
10. Polypetalous means
(a) petals free
(b) petals united
(c) sepals united
(d) sepals free
Ans. (a) petals free
11.The shape of Corolla may be
(a) tubular
(b) bell shaped
(c) funnel shaped
(d) all the above
Ans.(d) all the above
12. The function of Corolla
a) attract insects for pollination
b) fruit formations
c) flower formation
(d) all the above
Ans . (a) attracts insects for pollination.
13.The main function of calyx is
(a) protect the flower in the bud stage.
(b) fruits formation
(c) food materials
(d) none of these
Ans.(a) protect the flower in the bud stage.
14. Which are usually brightly coloured ?
(a) calyx
(b) corolla
(c) andriecium
(d) ovum
Ans. (b) corolla
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15. Gamosepalous and polysepalous are
(a) Calyx
(b) Corolla
(c) cotton
(d) china rose
Ans.(a) Calyx
16.Gamopetalous and Polypetalous
(a) Corolla
(b) calyx
(c) andriecium
(d) gynoecium
Ans.(a) Corolla
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