Exam Questions for Class 11 Biology Chapter 5 Morphology of Flowering Plants
Objective Type Questions
Question. At the two ends of the embryonalaxis _____ are present in dicot seeds
(a) The endosperm
(b) Coleorhiza and coleoptile
(c) Radicle and plumule
Question. Which of the following is non-endospermous seed?
(a) Bean, gram,pea
(b) Coconut, cereals
Question. Which of the following monocotyledonous seeds is non endospermic?
Question. The aleuronelayer in maize grain is specially rich in
Question. Plumule is covered by
(a) Root cap
Question. In floral formula, (K) denotes
Question. Trimerous flowers, superior ovary axileplacentation is characteristic of
Question. Neel is obtained from
(a) Crocus sativus
(d) Aconitum heterophyllum
Question. Which of the following is monocot family
Question. A dot on the top of floral diagram indicates
(b) Mother axis
(c) Father axis
(d) Floral parts
Critical Thinking Type Questions
Question. Aleurone layer helps in
(a) storage of food in endosperm.
(b) protection of embryo.
(c) utilization of stored food.
(d) all of the above.
Question. Main function of leaf is
(a) exchange of gases
(b) increase the beauty of a tree
(c) manufacturing of food
(d) nerve impulse induction
Question. Which is not a stem modification ?
(a) Rhizome of ginger
(b) Corm of Colocasia
(c) Pitcher of Nepenthes
(d) Tuber of potato
Question. The character of flower which is represented by floral formula but not by floral diagram is
(c) position of gynoecium
(d) adhesion of stamen
Question. Seeds are regarded as products of sexual reproduction because they
(a) can be stored for a long time.
(b) are result of fusion of pollen tube.
(c) are result of fusion of gametes.
(d) give rise to new plants.
Question. Which of the following represents the floral characters of liliaceae?
(a) Six tepals, zygomorphic, six stamens, bilocular ovary, axile placentation.
(b) Actinomorphic, polyphyllous, unilocular ovary, axile placentation.
(c) Tricorpellary, actinomorphic, polyandrous, superior ovary, axile placentation.
(d) Bisexual, zygomorphic, gamophyllous, inferior ovary, marginal placentation.
Question. Which of the following is not the characteristic features of fabaceae?
(a) Tap root system, compound leaves and raceme inflorescence.
(b) Flowers actinomorphic, twisted aestivation and gamopetalous.
(c) Stamens 10, introrse, basifixed, dithecous.
(d) Monocarpellary, ovary superior and bent stigma.
Question. Ginger is an underground stem. It is distinguished from root because
(a) it lacks chlorophyll.
(b) it stores food.
(c) it has nodes and internodes.
(d) it has xylem and vessels.
Question.The main function(s) of root system is/are
(a) absorption of water and minerals from the soil
(b) storing reserve food material
(c) synthesis of plant growth regulators
(d) All of the above
Question. The region of the root-tip which is involved in the formation of root hairs by epidermal cells is called the
(a) region of maturation.
(b) region of meristematic activity.
(c) region of elongation.
(d) none of the above.
Question.”X” is the outermost whorl of the flower and contains “Y”. Y is green, leaf like and protect the other whorls of the flower.
Identify X and Y.
(a) X – Calyx; Y – Sepals
(b) X – Corolla; Y – Petals
(c) X – Gynoecium; Y – Fruit
(d) X – Androecium; Y – Ovary
Diagram Type Questions
Question. The given figures (A and B) show the modificaiton of roots.Which of the following statements regarding the figures is correct ?
(a) Tap roots of carrot, turnip and adventitious root of sweet potato, get swollen and store food.
(b) Pneumatophores conducts water, minerals & photosynthesis
(c) Pneumatophore is found in the plants that grow in sandy soil.
(d) Turnip & carrot shows adventitious roots and sweet potato shows tap root.
Question. Identify the inflorescence shown by the given figures A and B.
(a) A-Cymose, B-Racemose
(b) A-Racemose, B-Cymose
(c) A-Racemose, B-Racemose
(d) A-Cymose, B-Cymose
Question. Given figures (A, B and C) show the position of floral parts on thalamus. (given as I, II and III) Select the correct combination.
I. Hypogynous flower II. Perigynous flower
III. Epigynous flower
(a) A-I, B-II, C-III
(b) A-I, B-III, C-II
(c) A-III, B-II, C-I
(d) A-III, B-I, C-II
Question. Identify the kind of phyllotaxy shown in the given figures A, B, and C.
(a) A-Alternate, B – Opposite, C – Whorled
(b) A- Whorled, B – Opposite, C -Alternate
(c) A-Alternate, B – Whorled, C – Opposite
(d) A-Whorled, B -Alternate, C – Opposite
Question. The given figure shows the parts of mango and coconut.
Choose the option which shows the correct labelling of A, B, C and D marked in the figures.
Question. The given figure shows a typical structure of monocotyledonous seeds. Identify the parts A, B, C, D
and E marked in the given figures.
(a) A – Endosperm, B – Embryo, C – Scutellum, D – Coleorhiza, E – Coleoptile
(b) A- Embryo, B – Endosperm, C – Scutellum, D – Coleoptile, E – Coleorhiza
(c) A – Endosperm, B – Embryo, C – Scutellum, D – Coleoptile, E – Coleorhiza
(d) A – Embryo, B – Endosperm, C – Scutellum, D – Coleorhiza, E – Coleoptile
Question. The given figure (A, B, and C) shows different types of roots. Identify the root which is seen in wheat plant and originate from the base of the stem?
(d) Both A and B