The centrally situated group of cells of the cyto-histological zones, derived from central mother cells, which eventually form pith is known as
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Biology GK · all questionsPlant Kindom
Plant Kindom
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What is the botanical name of opiuin?
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'Cloves' are
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The dissolution of the middle lamellae or the entire cells, or the accumulation of liquid in the intercellular spaces of the abscission layer occur only in the tissue surrounding the
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The central cells in the stem that are enclosed by the ring meristem are designated as
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According to Sach's classification of tissue system, which of the following includes the vascular cylinder and is made up of two complex tissues, called the xylem and phloem?
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In which of the following plants, in the primary state the root is pentarch or hexarch, the cortex is wide with wide intercellular spaces anda well defmed endodermis delimits the cortex from the stelar region?
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Potato is a
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The interval between the two successive leaf primordia is called
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The term 'Taxonomy' was coined by
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The perforation plate is the region where
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According to the Histogen theory, which of the following gives rise to all the tissues lying between the epidermis and the vascular cylinder?
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Most of the proteins in bacteria are
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According to Engler and Prantl's classification of plants
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After the meristematic activity of permanent cells, in case the inner cells remain meristematic and function as phellogen, the outer cells transform into the first cork layer known as
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Consider the following statements regarding collenchyma and choose the correct answer:
1. The cells of collenchyma contain protoplasm and are living
2. Presence of cellulose and pectic substances in the cell wall accounts for the high water absorbing capacity to the cells
3. Collenchyma is the tissue of secondary body
4. Collenchyma originates from elongated cells that resemble procambium
1. The cells of collenchyma contain protoplasm and are living
2. Presence of cellulose and pectic substances in the cell wall accounts for the high water absorbing capacity to the cells
3. Collenchyma is the tissue of secondary body
4. Collenchyma originates from elongated cells that resemble procambium
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The largest invertebrate is
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Heroin is obtained from
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Some of the fungal hyphae, in fungi, at a certain stage of maturity extend into the air and bear reproductive bodies and the rest continue with the normal activities. Such fungi are called
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Cloves are obtained from which of the following parts of the plant?
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