Special Types of Inflorescence

Q.

What is head or capitulum inflorescence?

Q.

Is sunflower an inflorescence?

Q.

Distinguish between the following pairs: (a) Flower and inflorescence

Q. Spadix is the inflorescence of

1. Rice
2. Banana
3. Amaranthus
4. Ficus

Q.

Describe the style in maize.

Q.

Sunflower is not a flower. Explain.

Q. Give four adaptations in flowers pollinated by insects.

Q. Spadix is the inflorescence of

1. Ficus
2. Rice
3. Banana
4. Amaranthus

Q.

What is called inflorescence?

Q.

Cyathium inflorescence is found in

1. Morus

2. Dorstenia

3. Ficus

4. Euphorbia

Q. Name the parts marked as l and n in the figure below:-

1. Sepal and petal
2. Carpel and stamen
3. Petal and pistil
4. Sepals and carpel

Q. Refer to the given figures showing the relative position of different floral parts on the thalamus and select the correct option.

1. A - Hypogynous, B - Perigynous, C - Perigynous, D - Epigynous
2. A - Hypogynous, B - Epigynous, C - Epigynous, D - Perigynous
3. A - Epigynous, B - Hypogynous, C - Perigynous, D - Perigynous
4. A - Hypogynous, B - Hypogynous, C - Perigynous, D - Epigynous

Q. The small projections present on the surface of pineapple fruit represent :

1. Persistent styles
2. Persistent stamens
3. Persistent calyx
4. Persistent bracts

Q. (a) Draw a labeled schematic diagram of the transverse section of a mature anther of an angiosperm plant.
(b) Describe the characteristic feature of an insect pollinated flower.

Q. How many female flowers occur in a Cyathium?

1. One
2. Two
3. Three
4. Four

Q. Assertion :Hypanthodium inflorescence is associated with gall wasp. Reason: It is fertilized, when this wasp comes to lay eggs in it.

1. Both Assertion and Reason are correct and Reason is the correct explanation for Assertion.
2. Both Assertion and Reason are correct but Reason is not the correct explanation for Assertion.
3. Assertion is correct but Reason is incorrect.
4. Assertion is incorrect but Reason is correct.

Q. Trimerous condition of floral whorls is characteristic of

Q. Which one is not characteristic feature of asteraceae?
(a) Cypsela fruit
(b) Syngenesious stamens
(c) Ovary bicarpellary superior
(d) Placentation marginal
(e) Head type inflorescence.

1. a, b only
2. b, c and d only
3. c and e only
4. e only
5. c and d only

Q. Enlist any 'two' floral adaptations in salvia.

Q. Identify the correct combination.

1. Neem- Absence of buds in the axils of leaflets- Pinnately compound leaf
2. Sunflower- Opposite phyllotaxy - Inferior ovary
3. Carrot- Flowers brought to same height due to varied lengths of pedicels- Involucre of bracts
4. Pista- Discoid stem - Lateral branch with many internodes

Q. Umbel inflorescence is seen in

1. lupin
2. Trifolium
3. soyabean
4. onion

Q.

Sunflower is

1. a head inflorescence

2. a mixed inflorescence

3. a flower

4. a cymose inflorescence

Q. The above-given inflorescence, belongs to which of the following family?

1. Fabaceae
2. Asteraceae
3. Liliaceae
4. None of the above

Q. Disc florets of sunflower are

1. Zygomorphic and epigynous
2. Zygomorphic and hypogynous
3. Actinomorphic and hypogynous
4. Actinomorphic and epigynous

Q. How many female flowers occur in a Cyathium?

1. One
2. Two
3. Three
4. Four

Q. Assertion :An angiospermous flower represents the modified condensed shoot which performs the function of sexual reproduction. Reason: The fertile leaves of the shoot become modified into microsporophylls and megasporophylls which bear ovules and anthers respectively.

1. Both Assertion and Reason are correct and Reason is the correct explanation for Assertion
2. Both Assertion and Reason are correct but Reason is not the correct explanation for Assertion
3. Assertion is correct but Reason is incorrect
4. Both Assertion and Reason are incorrect

Q. Which of the following flower shows acyclic arrangement of floral organs?

1. Rose
2. Mustard
3. Solanum
4. Lotus

Q. Short day plants come to flower .......... a critical photoperiod.

1. Below
2. Any photoperiod
3. Above
4. None of the above

Q. Commissural stigma (along carpellary cohesion plane) occurs in family

1. Cruciferae
2. Liliaceae
3. Solanaceae
4. Fabaceae

Q. Lemma is

1. Superior palea
2. Inner palea
3. Inferior or outer palea
4. Both A and B