a. Red and green b. Green and red c. Purple and yellow d. Purple and orange Solution: Option (b) is the answer.

Solution: Reasons for seed dormancy – • The seed coat are very hard and impermeable to gases and liquid surrounding it. • Presence of chemical inhibitors like abscisic acid, the stress hormone. •...

Solution: Sunflower is not a flower but a type of inflorescence called capitulum in which the receptacle is flattened. The ring of bract at the base of the inflorescent axis is known as an...

Solution: The mode of attachment of the ovule to the placenta is known as placentation which is of the following types: Parental 2. Marginal 3. Axile 4. Free 5. Central 6....

Solution; There are 4 types of aestivation. i. Valvate When sepals or petals in a whorl just touch one another at the margin, without overlapping, as in Calotropis, it is said to be valvate. ii....

Solution: Stolon is underground stems that spread to new niches. When old plants die, new ones are formed. It is a creeper. 2. Offset is genetically identical to the mother plant that has been...

Solution: Economic importance of the Fabaceae- Help to eradicate protein malfunctioning. 2. Prevent cell damage as it acts as an antioxidant. 3. Help in nitrogen fixation.

Solution: Whenever we observe ginger, it has some concentric pattern that represents the node and the internodes present over a stem. Ginger is considered as a stem for one more reason that over...

Solution: The tendrils of grapevines are homologous to the tendril of pumpkins as both are originated from the same part of the plant i.e. stem. In grapevines, the function of tendrils is to climb...

Solution: a. Stem tendrils - cucumber, pumpkins, grapevines, watermelons b. Leaf tendrils - peas

Solution: When the placenta is axile and the ovules are attached to it in a multilocular ovary the placentation is said to be axile. Examples – china rose, tomato, and lemon. (. i.e contains many...

Solution: The edible part of the coconut is the endosperm. The milk of tender coconut represents the oily endosperm in liquid form that consists of the free nuclear endosperm. Later it gets...

Solution: The pitcher plant can’t photosynthesize like other green plants thus, it exploits other sources for its survival and food. It utilizes the nitrogen obtained from the insects in the form of...

Solution: Similar and Dioscorea are monocots having reticulate venation. Calophyllum and Eryngium are dicots of parallel venation.

Solution:

Solution: Calyx – It is the outermost whorl of the flower and the members are called sepals which are green, leaf-like and protect the flower in the bud stage. Corolla – It is composed of petals....

Solution: Monoco leaves - Parallel venation; Dicot leaves - Reticulate venation.

Solution: The aquatic plants don’t have to face problems in obtaining water. Therefore, the main function of the roots of the aquatic plants is anchorage. Aquatic plantsTerrestrial plantsRoots are...

Solution: Banyan tree – roots develop from the lower nodes of the stem. They are prop roots that grow downwards and touch the soil. They provide support to the tree. Sugarcane – roots arise from the...

a. Turmeric_______________________ b. Snowdrop_______________________ c. Sweet potato __________________________ d. Water lily__________________________ e. Dryopteris __________________________ f. ...

Solution: The floral formula lacks the coralla representation i.e. the integral part of the floral formula of the Fabaceae family.

Solution: In an epigynous flower, the ovary is situated below the sepals, petals, and androecium

Solution: In ginger, the edible part is a rhizome which is a modified shoot that stores food materials. The edible part of the onion is fleshy scale leaves.

Solution:Dicot and Monocot are characterized by reticulate and parallel venation respectively.

Solution:In water plants like Pistia and Eichhornia, leaves and roots are found near the Nodal region between two internodes.

Solution:In swampy areas like the Sunderbans in West Bengal, plants bear special roots called pneumatophores that show negative geotropic movement.

Solution:In Australian Acacia, the petiole takes the shape of the leaf and turns green to perform the function of photosynthesis.Asparagus spears continue to grow, flat, green, leaflike...

Explanation:

Solution:In some plants such as Rhizophora growing in swampy areas, many roots come out of the ground and grow vertically upwards. Such roots, called pneumatophores, help to get oxygen for root...

Column I A. Aleurone layer B. Parthenocarpic fruit C. Ovule D. EndospermColumn II i. without fertilization ii. Nutrition iii. Double fertilization iv. Seed a. A-i, B-ii, C-iii, D-iv b. A-ii, B-i,...

a. Trifoliumb. Indigoferac. Lupind. CassiaSolution:Option (b) is the answer.Explanation: Indigofera belongs to the Fabaceae family and its common name is true indigo.

a. These plants are not angiosperms.b. Double fertilization is absent in them.c. Endosperm is not formed in them.d. Endosperm gets used up by the developing embryo during...

a. Testab. Hilumc. Micropyled. ChalazaSolution:Option (b) is the answer.Explanation: Hilum is a structure attached to the ovule outer region and interiorly to the placenta.

a. Solanaceae b. Poaceae c. Liliaceae d. Fabaceae Solution: Option (d) is the answer. Explanation: Fabaceae is a family that consists of members including pulses mainly.

a. Coconutb. Maizec. Orchidsd. CastorSolution:Option (c) is the answer.Explanation because endosperm is used up during the time of seed development.

a. Floral organs b. Flower in inflorescence c. Veins and veinlets in a lamina d. All of the above Solution: Option (c) is the answer

a. Taproots b. Fibrous roots c. Adventitious roots d. Nodular roots Solution: Option (c) is the answer.

A. Root hair zone B. Zone of meristems C. Root cap zone D. Zone of maturation E. Zone of elongation Options: a. C, B, E, A, D b. A, B, C, D, E c. D, E, A, C, B d. E, D, C, B, A Solution: Option (a)...