Tag «zygote»

Distinguishing characters of Pteridophytes

Pteridophytes: 1. The life cycle shows distinct heteromorphic alternation of generation. 2. Plant body of Sporophyte is dominant phase. 3. Sporophyte is differentiated into true root, stem and leaves. 4. Vascular tissue i.e xylem and phloem are present. Xylem lacks vessels but tracheids are present. In phloem sieve tubes and companion cells are absent. 5. …

Mechanism of Photosynthesis

Mechanism of Photosynthesis Plant Physiology Plant physiology deals with the studies of life processes that are similar in many organisms. Thousands of chemical reactions are underway in every living cell transferring water, mineral salts and gases from the environment into organized plant tissue. Plants are also endowed with the property of photosynthesizing, a unique feature …