What is Heartwood? Heartwood is the innermost part of a tree trunk, also known as the central core or the deadwood. It is formed as a result of the transformation of sapwood, which is the younger, outer layer of wood in a tree. As a tree grows, the sapwood gradually changes into heartwood, becoming darker … Read more
What is Geotropism? Geotropism, also known as gravitropism, is a biological response exhibited by plants in which they grow in response to gravity. This phenomenon allows plants to orient themselves in relation to the Earth’s gravitational pull, ensuring that their roots grow downward into the soil and their stems grow upward towards the light. Geotropism … Read more
What is Cellulose? Cellulose is a complex carbohydrate that is found in the cell walls of plants. It is the most abundant organic compound on Earth and is a major component of plant biomass. Cellulose is a polymer made up of repeating units of glucose molecules, which are linked together by beta-1,4-glycosidic bonds. This linear … Read more
What is a stipule? A stipule is a small, leaf-like structure that is found at the base of a leaf stalk, known as the petiole, in many plants. Stipules are typically paired and can vary in size, shape, and texture depending on the plant species. They are considered to be modified leaves and can be … Read more
What is a conifer? A conifer is a type of plant that belongs to the division Pinophyta, also known as Coniferophyta. These plants are characterized by their cone-bearing reproductive structures and needle-like or scale-like leaves. Conifers are typically evergreen, meaning they retain their foliage throughout the year. They are found in various habitats around the … Read more
What is Apical Dominance? Apical dominance is a phenomenon in plants where the growth of the main, central stem (apical meristem) is favored over the growth of lateral branches or buds. This results in the plant having a dominant main stem with fewer lateral branches. The apical meristem is located at the tip of the … Read more
What is Epicuticular Wax? Epicuticular wax is a hydrophobic layer of wax that covers the outer surface of plant leaves, stems, and fruits. It is a complex mixture of organic compounds, primarily long-chain fatty acids, alcohols, aldehydes, and esters. Epicuticular wax is secreted by epidermal cells and forms a thin, protective coating that helps plants … Read more
What is incompatibility in plants? Incompatibility in plants refers to the inability of certain plant varieties to successfully reproduce when crossed with each other. This phenomenon occurs due to genetic differences between the plants, which prevent the pollen from one plant from fertilizing the ovules of another plant. Incompatibility is a natural mechanism that helps … Read more
What is Tapetum? Tapetum is a layer of cells found in the anther of flowering plants. It is a specialized tissue that plays a crucial role in plant reproduction. The tapetum is located within the sporangium, which is the structure that produces spores. This layer of cells is essential for the development and maturation of … Read more
What is a Ray Floret? A ray floret is a type of flower structure found in composite flowers, also known as asteraceae or sunflower family. Ray florets are the outermost flowers in the inflorescence of composite flowers and are often referred to as petals. They are typically flat, strap-shaped, and have a different appearance compared … Read more