Tag: seeds - structure and germination

Protoderm is a type of primary meristem which has developed from apical meristem. It forms the outermost epidermis which is responsible for root cap formation.
Thus, the correct answer is option A.

Vascular tissue in dicot stem consists of many vascular bundles which are arranged in the form of broken ring known as eustele.

Reticulate venation is the arrangement in which the veins of the leaf cross each other around the midrib. It may be unicostate or multicostate depending on the number of mid-ribs and lobes of the leaf. For example, dicot plant.
Thus, the correct answer is option B.

A. Embryo lies in the centre of endosperm. It consists of a radicle, a plumule and two lateral cotyledons, all of which are present on a short embryo axis. The cotyledons are thin, semi-transparent and oval in outline. They have palmate venation. The middle costa or rib is more prominent and bears a few lateral veins.

B. Maize- Cotyledons store food material for the embryo.

C. Pea- Cotyledons store food material for the embryo.

The production of vast amount of grain is one of the most outstanding outcome of modern agriculture. Poaceae (monocot) and fabaceae (dicot) contribute to the species, that are responsible for the vast majority of grain production worldwide.

The earliest known flowering plants date back to about 130 million years ago. According to Cronquist (evolution and classification of flowering plants, 1988), the most primitive of all living angiosperms belong to the subclass Magnoliidae. This subclass contains several primitive plant families, including the water-lily family (Nymphaeaceae), buttercup family (Ranunculaceae) and magnolia family (Magnoliaceae). 

Non porous woods are found in gymnosperms. Non porous wood are the wood which do not permit transfer of water or air. 

Arachis hypogaea is the botanical name of peanut or groundnut. It is an annual herbaceous plant in the Fabaceae (legume or bean family). Although appearing as and referred to as a nut, it is actually the underground pod of a legume, rather than a true nut.

The peanut or groundnut (Arachis hypogaea) is a species in the family Fabaceae. The peanut was probably first domesticated and cultivated in the valleys of Paraguay. It is an annual herbaceous plant growing 30 to 50 cm tall. Peanut oil is often used in cooking, because it has a mild flavor and a relatively high smoke point. Due to its high monounsaturated content, it is considered healthier than saturated oils and is resistant to rancidity. There are several types of peanut oil including aromatic roasted peanut oil, refined peanut oil, extra virgin or cold pressed peanut oil and peanut extract. In the United States, refined peanut oil is exempt from allergen labeling laws.
Peanut oil is not obtained from Lathyrus odoratus (sweet pea), Pisum sativum (garden pea), Glycine max (soya) or Brassica juncea (mustard). 
Therefore, the correct answer is option C.