These carry genetic information (DNA). Humans typically have 46 chromosomes (23 pairs). 2. Tissue Systems and Differentiation
Green (contain chlorophyll); essential for photosynthesis. ssc biology chapter 2 hand note exclusive
Flat, scale-like cells (e.g., lining of Bowman's capsule, blood vessels) optimized for filtration and diffusion. These carry genetic information (DNA)
Transports water/minerals upward (Tracheids, Vessels, Xylem Parenchyma, Xylem Fiber). essential for photosynthesis. Flat
Chromoplasts: Colored (red/yellow), attract insects for pollination. Leucoplasts: Colorless, store food.
Phloem: Transports prepared food from leaves to all other parts of the plant. Consists of sieve tubes, companion cells, phloem parenchyma, and phloem fibers. 5. Animal Tissues