Phloem is a permanent vascular tissue system associated with the conduction of food materials in plants. It is a complex tissue composed of more than one type of cells namely sieve elements, companion cells, phloem fibres and phloem parenchyma. Among these cells, the sieve elements are the most specialized cells […]
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Difference between Mesophyll and Bundle Sheath Cells and Chloroplasts in C4 Plants
Kranz Anatomy What is Kranz Anatomy? The C4 cycle or Hatch and Slack pathway of dark reaction of photosynthesis are characterized by two structurally and functionally different chloroplasts in their leaves. The leaves of C4 plants such as maize possess the classical Kranz anatomy. In Kranz anatomy, each vascular bundle […]
Continue ReadingDifference between C3 and C4 Cycles of Photosynthesis in Plants
Calvin Cycles vs Hatch and Slack Cycle Difference between C3 and C4 Cycles: Photosynthesis is one of the vital events in the earth in which the green plants fix the energy from the sunlight and synthesis nutrients with carbon dioxide and water. Almost all living things on earth, either directly […]
Continue ReadingTypes of Stelar Systems and its Evolution in Pteridophytes and Higher Plants
Stelar Evolution in Pteridophytes What is stele? What are the components of stele? Ø Stele is the central cylinder or core of vascular tissue in higher plants. Ø The stele consists of xylem, phloem, pericycle and medullary rays and pith if present. Ø The term ‘stele’ was for the first […]
Continue ReadingReceptacular vs Appendicular Theory of Inferior Ovary Development in Flowers
Based on the position of ovary there are three types of flowers- (1) Hypogynous, (2) Perigynous, and (3) Epigynous. (1). Hypogynous Flower: The most primitive type with convex shaped Thalamus (torus). The ovary is superior and all other floral parts (calyx, corolla and androecium) arise from the base of the […]
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