Question
Explain simple and complex tissue.
b. Complex tissue:
1. They are made up of many types of cells.
2. They are found only in the vascular regions of the plant.
3. They mainly perform the function of conduction of food and water.
4. Complex tissues in plants are Xylem and Phloem.
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| Column I | Column II |
| 1. Protoxylem | (a) Xylem with larger vessels |
| 2. Endarch Xylem | (b) Protoxylem arranged towards pith |
| 3. Metaxylem | (c) Metaxylem arranged towards pith |
| 4. Exarch xylem | (d) First formed xylem vessels |
| Column I | Column II |
| 1. Prophase | (a) Chromatids moving to opposite poles. |
| 2. Metaphase | (b) Nuclear membrane starts disappearing. |
| 3. Anaphase | (c) Chromosomes at equatorial plane of the cell. |
| 4. Telophase | (d) Nuclear membrane reappears |

| i. | Descending limb of Henle’s loop | a. | Reabsorption of salts only |
| ii. | Proximal convoluted tubule | b. | Reabsorption of water only |
| iii. | Ascending limb of Henle’s loop | c. | Conditional reabsorption of sodium ions and water |
| iv. | Distal convoluted tubule | d. | Reabsorption of ions, water and organic nutrients |
| Column-I | Column-II |
| 1. Basal | (p) Mustard |
| 2. Axile | (q) China rose |
| 3. Parietal | (r) Dianthus |
| 4. Free central | (s) Sunflower |
| Column I | Column II |
| 1. Psilopsida | (a) Selaginella |
| 2. Lycopsida | (b) Equisetum |
| 3. Sphenopsida | (c) Adiantum |
| (d) Psilotum |
| Column I (Tvpe of calyx) | Column II (Nature of sepals) | Column III (Example) |
| 1. Caducous | (a) Sepals remain even after fruit formation | 1. Brinjal, Pea |
| 2. Deciduous | (b) Sepals fall off as soon as the flower bud opens | 2. Lotus, Mustard |
| 3. Persistent | (c) Sepals survive till (withering of petals) fruit formation | 3. Argemone (Poppy) |
| Phylum | Characters |
| 1. Annelida | (a) Tube feet |
| 2. Mollusca | (b) Ostia |
| 3. Ctenophora | (c) Radula |
| 4. Porifera | (d) Parapodia |
| 5. Echinodermata | (e) Comb plates |
| Column I | Column II |
| (a) Golgi apparatus | (i) Synthesis of protein |
| (b) Lysosomes | (ii) Trap waste and excretory products |
| (c) Vacuoles | (iii) Formation of glycoproteins and glycolipids |
| (d) Ribosomes | (iv) Digesting biomolecules |