1) The cells of cork are dead and have a chemical in their walls that makes them impervious to gas and water. The chemical is a) Lignin b) Cutin c) Suberin d) Wax 2) Who discovered the cell? a) Robert Hooke b) Purkinje c) Robert Brown d) Leeuwenhoek 3) The flexibility in plants is due to a tissue called a) Collenchyma b) Sclerenchyma c) Parenchyma d) Chlorenchyma 4) Find the odd one out. a) Paddy b) Black gram c) Maize d) Linseed 5) Tissue present in tubules of kidney and salivary gland a) Squamous epithelium tissue b) Cuboidal epithelium tissue c) Columnar epithelium tissue d) Ciliated epithelium tissue 6) Which of the following is a micronutrient ? a) Nitrogen b) Sulphur c) Phosphorus d) Zinc 7) The site of detoxification in liver cells is a) SER b) Lysosome c) RER d) Ribosome 8) Catlas and Rohu are examples of a) Marine water fish b) Both (a) and (b) c) Fresh water fish d) None of these 9) Scientific name of which bee is Apis dorsata a) Italian bee b) Indian bee c) Little bee d) Rock bee 10) Which tissue connect bone to bone? a) Tendons b) Cartilage c) Ligaments d) None of these 11) Assertion : The endoplasmic reticulum which lacks ribosomes is called smooth endoplasmic reticulum Reason : SER is mainly involved in protein synthesis. a) (a) Both assertion (A) and reason (R) are true and reason (R) is the correct explanation of assertion (A). b) (b) Both assertion (A) and reason (R) are true but reason (R) is not the correct explanation of assertion (A). c) (c) Assertion (A) is true but reason (R) is false. d) (d) Assertion (A) is false but reason (R) is true. 12) Assertion : Parenchyma cells help in storage of food. Reason : Parenchyma cells are the main seats of photosynthesis. a) (a) Both assertion (A) and reason (R) are true and reason (R) is the correct explanation of assertion (A). b) (b) Both assertion and reason are true but reason is not the correct explanation of assertion. c) (c) Assertion is true but reason is false. d) (d) Both Assertion and Reason are false. 13) Assertion: A pulse crop grown in a time interval between two cereal crops Reason: To compensate for the loss of nitrogen a) (a) Both assertion and reason are true and reason is the correct explanation of assertion. b) (b) Both assertion and reason are true but reason is not the correct explanation of assertion. c) (c) Assertion is true but reason is false. d) (d) Both Assertion and Reason are false. 14) Sieve tubes and companion cells are present in a) Xylem b) Phloem c) Cork d) Cambium 15) Xylem and phloem are examples of a) Epidermal tissue b) Simple tissue c) Protective tissue d) Complex tissue 16) The opening and closing of stomata is due to a) Sunlight b) Osmosis c) Endocytosis d) Plasmolysis

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