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ICSE Class IX Mid-term 2021 : Biology

6 pages, 104 questions, 1 questions with responses, 1 total responses,

Vinit Wilton
St. John's School (SJS), Katsila, Chandauli

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Half Yearly Examination -2020 Class - IX BIOLOGY Time : 2hrs. MM-80 Note- You will not be allowed to write during the first fifteen minutes. This time is to be spent in reading the question paper. The time given at the head of the paper is the time allowed for writing the answers. It has two section A and B. Attempt any four questions from Section - B. Section - A [40 marks] Attempt all the questions from this section. 1. a) Name the following : 5 i) The kind of microscope that consists of a single biconvex lens. ii) The longest cells in humans. iii) Outermost layer in plant cells. iv) Pollination of flowers by insects. v) A flower containing both male and female parts. b) Choose the correct answer from each of the four options given below : 5 i) All life starts as a) an egg c) a gene b) a single cell d) a chromosome ii) Plant cell has a cell wall made of a) Protein c) Cellulose b) Fructose d) Fatty acids iii) Which bacteria is rod shaped ? a) Coccus c) Bacillus b) Spirillum d) Vibrio iv) Exine and intine are the parts of a) Embryo sac c) Stigma b) Pollen grain d) Seed v) The part of the flower what gives rise to the fruit is a) Sepals c) Ovary b) Petals d) Stamens c) Correct the statements given below by changing the underlined word : 5 i) Respiration takes place in the Chloroplast of the cell. ii) Xylem cells are cubical and thick coiled. iii) Areolar tissue store fat. iv) Nectaries are situated usually at the top of the pistil. v) Seed is the ripened Ovary. d) Given below are sets of five terms each. Rewrite the term in correct order in a logical sequence beginning with the word that is underlined. i) 5 Calyx, Androecium, Thalamus, Corolla, Gynoecium. ii) Embryo, Firstmale gamete, Zygote, Egg cell, Micropyle. iii) Seed, Seedling, Pollination, Germination, Fertlization. iv) Heterostyle, Unisexuality, Herkogamy, Dichogamy, Self sterility. v) Organ system, Cell, Organ, Tissue, Organism e) Choose the odd one out from the following terms given and name the CATEGORY to which the other belong : i) 5 Hibiscus, Sunflower, Vallisneria, Pea. ii) Golgibodies, Leucoplast, Nucleolus, Cambium. iii) Gram Seed, Pea Seed, Rice, Been Seed. iv) Leucoplasts, Chromoplast, Mitochondria, Chloroplast. v) Parenchyma, Cambium, Collenchyma, Sclerenchyma. f) Match the items given in Column A with the most appropriate ones in column B and rewrite the correct matching pairs. Column A Column B i) Binds bones together Supporting tissue ii) Parenchyma Colourless plastids iii) Xylem and Phloem Ligaments iv) Sepals Protein Synthesis v) Vascular bundles Leucoplast Calyx 5 g) Study the diagram given below and answer the questions that follow : 5 i) Identify the figure. ii) What does it consists of ? iii) Write the function of this figure. iv) Label its parts. v) What are Tracheids made up of ? h) Explain the following terms : 5 i) Plastids iv) Inflorescence ii) Complete flower v) Pollination iii) Tissue Section - B [40 Marks] Attempt any four question from this section. 2. (a) Study the diagram and answer the questions that follow : 5 i) Identity the diagram. ii) Label the parts. iii) Write the function of part 3. iv) Define the term integuments. v) What is double fertilisation ? (b) Mention the exact location of the following : i) Sieve tubes iv) Embryo sac ii) Stomata v) Hilum 5 iii) Nectaries 3. (a) The diagram given below shows a few parts of a cell. Answer the questions that follows : i) Is it a plant or animal cell ? Give a reason to support your answer. 5 ii) State the difference between the parts labelled A and B on the basis of permeability. iii) State the function of Golgibodies. iv) Write the function of Nucleus. v) What is the difference between plant cell and Animal cell (cell wall) ? b) Mention one difference between each of the following pairs with reference to what is mentioned in the brackets. 5 i) Respiration and Photosynthesis (gas given out). ii) Prokaryotic cell and Eukaryotic cell (Nucleus). iii) Plant cell and Animal cell (Cytoplasm). iv) Xylem and Phloem (Conduction). v) Self and Cross Pollination (agents). 4. (a) The diagram shows the structure of the nucleus of a cell : 5 i) Label all the parts. ii) Write the function of part 4. iii) Write the full form of DNA. iv) Name the cell organelle known as powerhouse of the cell. v) What is the function of Ribosomes. b) Fill in the blanks with suitable words : 5 1. The pollen of the same flower may fall on its stigma by itself. (__________) 2. The pollen of another flower of the same plant may fall on the stigma. (__________) 3. The pollen of a flower of another plant of the same species may fall on the stigma. (__________) 4. (__________) is a water-pollinated flower. 5. Rice, wheat and maize are rich in(__________) food. 5. (a) Observe the diagram carefully and answer the following questions. 5 i) Identify the given diagram. ii) What type of germination is seen ? iii) What becomes the first green leaves ? iv) Label all the parts. v) Define viviparous germination. (b) Give biological explanations for the following statements : i) Every organisms needs food. ii) Why are the cells generally of a small size. 5 iii) There are many small particles in the cytoplasm. iv) Nectaries are common in most brightly coloured flowers. v) 6. Seed sown very deep in soil fail to germinate. (a) Observe the given figure and answer the questions : i) Identify the given diagram. ii) What is aleurone layer ? iii) What does embryo consists of ? iv) Write one function of Micropyle. v) What do you mean by epicotyl. (b) Give the biological terms for each of the following : i) The plastids which give red and orange colour to fruits and flower. ii) The involuntary muscles found in heart. iii) The layer of endosperm of maize, rich in protein. iv) A group of similar cells performing a specific function. v) Cells least specialized in the plants. 5 5 7. (a) The diagram given below represents a process occurring in a flower. Answer the questions that follow : i) Name the process and explain it. ii) Mention the agent involved in the above process. iii) What is 'Double Fertilisation' ? iv) Define the term 'Inflorescence'. v) Draw a neat, labelled diagram of a carpel. (b) Answer the following questions briefly : i) Write two chief character of meristematic tissue. ii) Write two advantages of self pollination. iii) What is the function of nerve tissue ? iv) Write one main function of adipose tissue. v) What are Bracts ? **** 5 5

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