Question

RISHIKESH PUBLIC SCHOOL, RISHIKESH FIRST TERM EXAMINATIONS, 2021-22 Class : VII Subject : Biology Time : 2 Hours Full Marks : 80 Attempt all questions from Section –I and any four questions from Section – II. Section – I (40 marks) Attempt all questions from this section. I Fill in the blanks: (10 × 1 = 10) 1. The adipose tissue is responsible for the storage of ………………… 2 . ……………. helps us to understand life from basic feature. 3. ……………… acts as a cement and makes sclerenchyma hard. 4. Five kingdom classification was proposed by ……………… . 5. …………… tissue is responsible for the elongation of the stem. 6. Amoeba reproduces by the process of …………… fission. 7. ……………. muscles help in the movement of food in food pipe. 8. ……………….. is the lowest category of classification. 9. …………….. blood cells protect the body against pathogens. 10. The increase in the diameter of the root occurs by the division of …………. tissue. II Write true or false. (10 × 1 = 10) 1. Meristematic tissues are also called growth tissues. 2. Animal tissues are less diverse than plant tissues. 3. Adipose tissue protects us from external shocks. 4. The axons bundle together to form a muscle. 5. External ear is made up of flexible cartilage. 6. Phloem is made up of mainly dead cells. 7. Cardiac muscles work continuously. 8. The cell wall of all plants is made of cellulose. 9. The organisms belonging to the Kingdom Monera are prokaryotes. 10. Epithelial cells lack intercellular spaces. III Choose the correct option. (5 × 1 = 5) 1. Only Kingdom comprising all autotrophs is: (a) Fungi (b) Monera (c) Protista (d) Plantae 2. In potato, starch is stored in the: (a) phloem (b) parenchyma (c) sclerenchyma (d) chlorenchyma 3. The cells responsible for blood clotting are: (a) erythrocytes (b) leucocytes (c) chondrocytes (d) thrombocytes 4. The thin-walled living cells found in the soft parts of a plant are: (a) parenchyma (b) collenchyma (c) xylem (d) phloem 5. Which of the following is not a connective tissue? (a) Bone (b) Blood (c) Cartilage (d) Epithellium IV Match the following. (5 × 1 = 5) Column A Column B 1. Spindle-shaped (a) Erythrocytes 2. Dendrites (b) Platelets 3. Haemoglobin (c) Skeletal muscles 4. Blood clotting (d) Smooth muscles 5. Striated muscles (e) Neuron V Identify the following tissues. (5 × 1 = 5) 1. Fluid connective tissue containing RBCs 2. Plant tissue that has lost its ability to divide 3. Muscular tissue that works at our will 4. Skeletal connective tissue composed of chondrocytes 5. Permanent plant tissue with intercellular spaces VI Given below are names of certain organisms. Unscramble their names. 1. REFN 2. RAICUGAS 3. ESOR 4. CLLIUSAB 5. MBAEAO SECTION – II (40 Marks) Answer any four questions from this section. Each question caries 10 marks. VII Answer the following questions in brief. (5 × 2 = 10) 1. Why is classification of organisms important? 2. Why are meristematic tissues considered as growth tissues? 3. Why are simple permanent tissues also known as supporting tissues? 4. Why is lymph straw coloured? 5. Why is adipose tissue considered the largest repository of energy? VIII Differentiate between the following. (2 × 5 = 10) 1. Monera and Protista 2. Ligament and Tendon IX Reason-Based: (5 × 2 = 10) What would happen if 1. our blood contains less number of erythrocytes? 2. the soil does not contain any bacteria or fungi? 3. the set curd is kept in warm conditions for a much longer duration? 4. cardiac muscles take rest for a while? 5. stale bread is left uncovered in moist and warm conditions? X Answer the following questions in detail. (2 × 5 = 10) 1. Describe the different types of connective tissues found in animals. 2. Discuss various advantages of classifying organisms. XI Draw and label any one of the following diagrams. (10) 1. Structure of a neuron 2. Different types of blood cells​

Answer 1

Answer:

Photosynthesis is a process used by plants and other organisms to convert light energy into chemical energy that, through cellular respiration, can later be released to fuel the organism's metabolic activities.

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Explanation:

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