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Biology Plant Kindom Difficulty: Medium

In which of the following types of root apices in dicots, there are two layers of initials at the tip, one forming the central cylinder and the other forming the cortex and root cap? Consider the following statements regarding the importance of diffusion and choose the correct answer: 1. The exchange of gases takes place by the principle of dependent diffusion 2. The process of diffusion is involved in transpiration of water vapours 3. The ions are absorbed by the simple diffusion during passive salt uptake 4. Diffusion is an effective means of transport of substances over a very short distance and helps in the translocation of food materials Number of mitochondria in bacterial cell is Cellular organelles related with H2O2 are___________? Consider the following statements and choose the correct answer: 1. C 4 plants have "Kranz" type of leaf anatomy 2. The vascular bundles in C 3 leaves are surrounded by a layer of bundle sheath cells that contain large number of chloroplast 3. The chloroplast in C 4 leaves are dimorphic 4. In C 4 plants the cells of bundle sheath perform C 4 cycle