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Selina Concise ICSE Solutions for Class 7 Biology Chapter 1 Plant And Chapter 2 Animal Tissues Synopsis • The unit of level of organisation is independent in its mode of existence and activity. • All multi cellular organisms start their life as a single cell. •  Plant tissues are basically of two type 1.  meristematic 2.  permanent or non-dividing • The permanent – plant tissues are further of three types  1. protective 2. supportive: parenchyma, collenchyma, sclerenchyma 3. conductive: xylem, phloem • Parenchymal cells have thin-walled cells and usually with a vacuole. • Potatoes mainly are composed of parenchymal cells. • Collenchyma are parenchymatous cells which are elongated and are thick at the comers. This helps to support the parts of the plant. • Sclerenchyma tissue is formed of long, narrow and thick cells. This provides strength to the plant parts. • Xylem is formed of thick-walled, tubular and often d...

Selina Concise ICSE Solutions for Class 8 Biology Chapter 2 Reproduction in Plants REVIEW QUESTIONS Multiple Choice Questions: 1. Put a tick mark (✓) against the correct alternative in the following statements (a)  Pollen is produced in the: Filament Style Pistil Anther (b)  Reproductive whorls of a flower are: Stamens and carpels Sepals and petals Sepals and stamens Petals and carpels (c)  Grafting is a method of: Artificial vegetative propagation Sexual reproduction Artificial pollination Cross-pollination (d)  Which one of the following is a false fruit ? Tomato Apple Potato Pea Short Answer Questions: Question 1. Write two ways in which pollination may occur in plants. Answer: The two ways in which pollination may occur in plants are: (a) Self-pollination. (b) Cross-pollination. Question 2. Name the three agents of pollination. Answer: The three agents of pollination are: (a) Insect (b) Wind (c) Water Question 3. Give two features of flowers which favour pollinat...

Selina Concise ICSE Solutions for Class 8 Biology Chapter 1 Transportation in Plants REVIEW QUESTIONS Multiple Choice Questions: 1. Put a tick mark (✓) against the correct alternative in the following statements: (a)  Diffusion occurs when molecules move: from lower concentration to higher concentration. from higher concentration to lower concentration through a membrane. from higher concentration to lower concentration. when energy is used. Answer: (3)  from higher concentration to lower concentration. (b)  Ascent of sap in plants takes place through: Cortex Epidermis Xylem Phloem Answer: (3)  Xylem (c)  If the xylem vessels of a plant are plugged: The leaves will turn yellow No food will be made The plant will wilt (shrivel) The plant will continue to grow Answer: (3)  The plant will wilt (shrivel) (d)  Force responsible for the ascent of sap is: Capillary force Root pressure Transpirational pull All the three Answer: (4)  All the three (e) ...