Chapter 5

Angiosperms are characterized by the presence of (a) Roots and stem (b) Leaf and flowers (c) Fruit (d) All of these

The branch of biology deals with internal structure of plants is called (a) Morphology (b) Physiology (c) Anatomy (d) Biochemistry

In majority of dicot, the direct elongation of the radicle leads to the formation of (a) Primary root (b) Secondary root (c) Tertiary root (d) None of these

The primary root and its branches constitute (a) Fibrous root system (b) Tap root system (c) Both (a) and (b) (d) None of these

In wheat (monocot) (a) Primary root is short lived (b) Primary root replaced by fibrous roots (c) Fibrous roots arises from the base of stem (d) All are correct

Adventitious roots are found in (a) Grass (b) Monestra (c) Banyan tree (d) All of these

Adventitious roots arise from part other than (a) Hypocotyl (b) Epicotyl (c) Plumule (d) Radicle

Functions of root are (a) Absorption of water and mineral from soil (b) Anchoring of plant in soil (c) Storage of food material and synthesis of plant growth regulator (d) All of these

Root is covered at the apex by a thimble-like structure called (a) Root cap (b) Radicle (c) Coleorhiza (d) Coleoptile

The root region is arranged proximal to distal part in the following manner (a) Zone of cell elongation- Zone of cell maturation \(-\) Zone of cell division (b) Zone of cell division \(-\) Zone of cell elongation \(-\) Zone of cell maturation (c) Zone of cell maturation- Zone of cell elongation \(-\) Zone of cell division (d) Zone of cell maturation \(-\) Zone of cell division \(-\) Zone of cell elongation

Root hairs arise from (a) Zone of cell division (b) Zone of cell elongation (c) One of cell maturation (d) All of these

Find out the incorrect statement: (a) Root hair absorbs water and mineral from the soil. (b) Root increases in length due to region of elongation. (c) Meristematic region have thin walled cell with dense cytoplasm. (d) Root cannot synthesize plant growth regulators.

Which of the following is an exception for the modification of the tap root? (a) Carrot (b) Turnip (c) Sweet potato (d) All of these

Prop or pillar roots are found in (a) Carrot (b) Sweet potato (c) Banyan tree (d) Maize

Maize and sugarcane contain (a) Storage root (b) Stilt root (c) Pneumatophores (d) Prop roots

Find out the incorrect statement: (a) Sweet potato has root modification for storage of food. (b) Still root arises from lower nodes of the stem. (c) Rizophora posses pneumatophores. (d) Pneumatophores are meant for anaerobic respiration.

Which of the following is incorrect of stem? (a) It is developed from the plumule of embryo of a germinating seed. (b) It bears nodes and internodes. (c) It bears only terminal bud not axillary bud. (d) Its main function is spreading of branches and bear leaves, flowers and fruits.

Functions of stem are (a) Conduct water, mineral and photosynthates. (b) Some perform storage food, support and protection. (c) Some perform function of vegetative propagation. (d) All of these

Young stems are generally (a) Woody (b) Dark brown in color (c) Green and photosynthetic (d) All of these

Underground stem stores food in the following except (a) Zaminkand (b) Colocasia (c) Ginger (d) Sugarcane

Which stem act as an organ of perennation? (a) Potato (b) Ginger (c) Colocasia (d) All of these

Which of the following is a gourd? (a) Cucumber (b) Pumpkins (c) Watermelon (d) All of these

Which of the following is correct about gourds? (a) Stem tendril develops from apical bud. (b) Stem tendril are slender and spirally coiled. (c) Stem tendril doesn't help in climbing. (d) Stem tendril develops from radicle.

Select the incorrect matching: (a) Thorn - Citrus, Bougainvillea Open with \- Flattened stem - Opuntia (c) Underground stem - Turmeric (d) Stem tendril - Colocasia

A slender lateral branch arises from the base of the main axis and after growing aerially for sometime arch downward to touch the ground seen in case of (a) Mint (b) Jasmine (c) Pistia (d) Both (a) and (b)

A lateral branch with short internodes and each node bearing a rosette of leaves and a tuft of roots are found in aquatic plants like (a) Pistia (b) Eichhornia (c) Wolffia (d) Both (a) and (b)

Select the correct statement from the following: A. Fleshy cylindrical stem in Euphorbia carry out photosynthesis. B. Pistia and eichhornia are example of offset. C. Underground stem of grass and strawberry spread to new niche and when older part die new plants are formed. D. Thorns are woody, straight and pointed. (a) \(\mathrm{A}\) and \(\mathrm{B}\) only (b) \(\mathrm{B}\) and \(\mathrm{D}\) only (c) \(\mathrm{B}\) and \(\mathrm{C}\) only (d) All of these

The most important vegetative organ for photosynthesis is (a) Stem (b) Leaf (c) Root (d) All of these

Which of the following is correct about leaf? (a) It has originated from root apical meristem. (b) It is arranged in basipetal order. (c) It arises from axillary bud. (d) It bears a bud in its axil.

Which of the following is incorrect about leaf? (a) It is arranged in acropetal order (b) It develops from node (c) It is generally flattened in shape (d) It is arranged in basipetal order

Typical leaf consist of (a) Petiole (b) Leaf base (c) Lamina (d) All of these

The leaf is attached to the stem by the leaf base and may bear two lateral small leaf like structure called (a) Leaflet (b) Lamina (c) Stipule (d) Leaf blade

Select the correct statement from the following: A. In monocot leaf, the base expands into a sheath covering the stem partially or wholly. B. In all leguminous plants, the leaf base may become swollen, which is called the pulvinus. C. The lamina or leaf blade is the green expanded part of the leaf with veins and veinlets. D. Veins provide rigidity to leaf blade. (a) \(\mathrm{A}\) and \(\mathrm{B}\) only (b) \(\mathrm{C}\) and \(\mathrm{D}\) only (c) All except B (d) All except D

Leaf can be differentiated by (a) Shape (b) Margin and apex (c) Surface (d) All of these

Long thin petiole allows the leaf blade to flutter in wind, thereby cooling of the leaf and bringing air to leaf surfaces. (a) Hard, fresh (b) Flexible, fresh (c) Hard, fresh (d) Rigid, fresh

The arrangement of arteries and arterioles in the lamina of leaf is termed as (a) Venation (b) Phyllotaxy (c) Inflorescence (d) None of these

Which of the following is correct about venation? A. Parallel venation is generally found in monocot. B. Parallel venation is generally found in dicot. C. Reticulate venation is generally found in monocot. D. Reticulate venation is generally found in dicot. (a) A and D only (b) \(\mathrm{B}\) and \(\mathrm{C}\) only (c) \(\mathrm{B}\) and \(\mathrm{D}\) only (d) A and C only

Bud is present in axil (a) Simple leaf (b) Compound leaf (c) Leaflet (d) Both (a) and (b)

Pinnately compound leaf found in (a) Lemon (b) Bombax (c) Desmodium (d) Neem

Palmately compound leaf is found in (a) Neem (b) Rose (c) Silk cotton (d) Mimosa pudica

Find out the correct matching: A. Palmately compound leaves - Leaf let attached to common axis rachis B. Phyllotaxy \- Pattern of arrangement of leaves on stemor branch C. Pinnately compound leaves \(-\) Leaflet attached to a common point i.e. at the tip of petiole D. Venation \(\quad\) - Arrangement of veins and veinlets in the lamina of leaf (a) A and B only (b) B and C only (c) \(\mathrm{C}\) and D only (d) B and D only

Phyllotaxy is usually of three types, namely, (a) Alternate (b) Whorled (c) Opposite (d) All of these

Select the correct matching: Column I Column II \(\quad\) Column II A. Alternate X. Single leaf arises at each node 1\. China Rose, mustard, sunflower B. Whorled Y. More than 2 leaf arises at node 2\. Alstonia C. Opposite Z. Pair of leaf arises at node 3\. Calotropis and guava (a) \(\mathrm{A}-\mathrm{X}-1, \mathrm{~B}-\mathrm{Y}-2, \mathrm{C}-\mathrm{Z}-3\) (b) \(\mathrm{A}-\mathrm{Y}-3, \mathrm{~B}-\mathrm{Z}-2, \mathrm{C}-\mathrm{X}-1\) (c) \(\mathrm{A}-\mathrm{Y}-3, \mathrm{~B}-\mathrm{Z}-1, \mathrm{C}-\mathrm{Y}-2\) (d) \(\mathrm{A}-\mathrm{Z}-3, \mathrm{~B}-\mathrm{Y}-2, \mathrm{C}-\mathrm{X}-1\)

Which of the following posses alternate phyllotaxy except? (a) Mustard (b) China rose (c) Sunflower (d) Calotropis

In which plant the leaves are small open with \(\mathrm{r}\). The petiole in these plant expand, become green and synthesize food, such petiole is known as phyllode? (a) Sweat pea (b) Clematis (c) Australian acacia (d) Eichhornia

Select the incorrect matching: (a) Leaf into tendril - Pea (b) Leaf into spine - Cacti (c) Fleshy leaf - Onion and garlic (d) Whorled phyllotaxy - Calotropis

Which of the following pair represent insectivorous plant? (a) Pitcher plant, australian acacia (b) Venus fly trap, calotropis (c) Pitcher plant, venus fly trap (d) Silk cotton, neem

In pitcher plant, the pitcher is modified into (a) Root (b) Stem (c) Leaf (d) Flower

In floral meristem (a) Internode does not elongate (b) Axis get condensed (c) The apex produced different kinds of floral appendages laterally at successive nodes instead of leaves. (d) All of these

The arrangement of flowers on the floral axis is termed as (a) Phyllotaxy (b) Aestivation (c) Inflorescence (d) Placentation