ICSE Class 6 Biology — Flashcards for Quick Revision

A: The main parts of a leaf are: 1. **Petiole** – the stalk that attaches the leaf to the stem. 2. **Lamina (Leaf Blade)** – the flat, green part where photosynthesis occurs. 3. **Midrib** – the central

A: A sessile leaf is a leaf that is directly attached to the stem without a petiole (leaf stalk). Example: Grass, wheat.

A: The midrib and veins: - Transport water and minerals to the leaf. - Carry prepared food (glucose) from the leaf to other parts of the plant. - Provide structural support to the leaf, acting like a ske

A: A flower is the reproductive part of a plant. It helps the plant produce seeds and fruits. Flowers come in different shapes, sizes, and colors, and they contain both male and female parts needed for r

A: The four whorls of a flower are: Calyx (sepals), Corolla (petals), Androecium (stamens), and Gynoecium (carpel or pistil).

A: The calyx is the outermost whorl made of sepals. It protects the flower in the bud stage. Sepals are usually green and leaf-like.

A: A cell is the basic structural and functional unit of all living organisms. It is the smallest unit that can perform all life processes. For example, our body is made up of billions of cells working t

A: Robert Hooke discovered the cell in 1665. He used a simple microscope to observe a thin slice of cork and saw box-like structures that reminded him of monks' rooms, which he called 'cells'.

A: Cells are called building blocks because all living things are made of cells. Just like bricks build a house, cells build the body of every organism — from tiny bacteria to large trees and animals.