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IIT CEED Solved Question Paper 2026 : Design

6 pages, 69 questions, 1 questions with responses, 1 total responses,

Zendaya Bm
Rajasthan Vidya Mandir (RVM), Kolkata
CLASS10 SCIENCE AND MATHS

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Vidya Vikas Kendra Science paper -3 Biology paper fClass 10 Marks 80 Answers to this paper must be written on the paper provided separately. You will not be allowed to write during the first 15 minutes This time is to be spent in reading the question paper. The time given at the head of this paper is the time allowed for writing the answers. Section A is compulsory . Attempt any four questions form Section B. The intended marks for questions or parts of questions are given in brackets [] Section-A [40marks] [Attempt all questions from this Section ] Question 1 Choose the correct answer to the questions from the given options [Do not copy the question, write the correct answer only] i ] Ravi went to a doctor for a blood examination. The results showed the presence of excess of Erythrocytes in his blood. He is suffering from ; Polycythemia b. proteinemia c. polydipsia d. erythropenia Ii] when a ripe banana is kept amongst unripe ones, all the bananas will ripen soon. The plant hormone that is responsible for this is : Auxins, b, Gibberellins c.Ethylene d. Cytokinins Iii] Assertion : Sugar or glucose is the ultimate product of photosynthesis Reason: Sugar is produced by the polymerization of starch. A is true , R is false A is false , R is true A and R are both true A and R are both false. Iv] While attempting the math paper of the ICSE exam, Rao feels severe emotional stress. The hormone that is responsible for this condition is : Thyroxine, b. somatotropin c. glucagon d. adrenaline v] the diagram below shows a Lymphocyte. The function of lymphocyte is .. a.Producing hormones b. transporting oxygen, c. phagocytosis, d. production of antibodies. vi] Assertion: the thyroid gland is considered as the accelerator of the body Reason: it controls the BMR of the body. a. A and R are both false b. A and R are both true c. A is true, R is false d. A is false, R is true. vii] Seema came out of a grain godown where is was very dark , into bright sunshine. She could not see properly for a few moments due to dazzling effect. Later she was able to see very well. This phenomenon is called: a. Power of accommodation b. Binocular vision c. Trichromatic vision d. Light adaptation viii] Sudden, spontaneous, response to stimuli without the process of thought is called: a. Conditioned reflex b. Voluntary reflex c. Simple reflex d. Complicated reflex ix] the organism that was used as an example in industrial melanism: a. Pisum sativum b. Mimosa pudica c. Mangifera indica d. Biston betularia x] the hormone that maintains pregnancy is: a. testosterone b. progesterone c. renin d. oestrogen. xi] the permanent stoppage of the menstrual cycle in females is known as: a. Menopause b. Menarche c. Amenorrhea d. Polyurea xii] the human sperm may contain: a. 22A +Y or 22A + X b. 22A+X only c. 22A +XX d. 22A + XY xiv] the rate of transpiration is fastest when the day is : a. Hot , humid and windy b. Cool, humid and windy c. Hot, humid and still d. Hot, dry and windy. xv] movement of molecules against the concentration gradient with the expenditure of energy is known as a. Diffusion b. Imbibition c. Osmosis d. Active transport Question 2: I] Name the following: a. the process by which plants lose water vapour from the aerial parts during the day b. the organ that produces prothrombin c. the lens used to correct Astigmatism d. the structures that carry the genes from one generation to another e. the part of the brain that controls involuntary activities. Question 3. Given below is the diagram of the human heart. Read the information below the diagram and fill in the blanks: The human heart is four chambered the upper chambers are called the A. ..and the lower chambers are called the . B .. the C. receives deoxygenated blood from all the parts of the body. The deoxygenated blood is sent to the lungs for oxygenation through the D. arteries . when the heart receives the oxygenated blood from the lungs, it is pumped out to all the parts of the body through the E. . iii] choose the odd term out from each of the following set of terms. Mention the category to which the other three belong: a. Sulphur dioxide , oxygen, carbon monoxide, nitrogen dioxide b. Thyroxine, adrenaline, amylase, oxytocin c. Root hair, epidermis, cortex, stomata d. Urea, uric acid, ammonia, amino acid e. Sclera, utriculus, choroid, retina. iv] Ayrah went to a Audio metrist to get her ears checked. She saw a poster in the clinic related to ear structure and function. Help her answer the questions. a. Which part of the ear helps in gathering sound waves b. Which part of the ear amplifies sound vibrations c. Which part of the ear converts sound vibrations into nerve impulses d. Which part balances air pressure on the inner surface of the ear drum e. Which part helps in maintaining dynamic balance of the body. v] study the diagram below and match the structure with its functions: a. provides energy to the sperm b. Helps the sperm to move and locomote c. Carries the paternal chromosomes d. Helps the sperm to penetrate into the ovum e. Contains the mitochondria Section B [ Attempt any four questions from this section] Question 3 i] Explain the term Gestation ii] Give one main difference between transpiration and guttation [form in which water is lost]. iii] Virat was playing a cricket match against Pakistan. He was focusing intently on the bowler so that he play proper strokes to each ball. a] which part of the brain helps Virat to focus on his game? b] name the part of the brain that co-ordinates his muscles while using his bat? iv] What it meant by a semi-permeable membrane? Give one example. v] Draw a neat diagram of a chloroplast , label all the parts. Question 4. i] Name any two major nitrogenous waste products produced by animals. ii] give any two common symptoms shown by patients suffering from Diabetes insipidus and Diabetes mellitus. iii] Give the common name and scientific name of the moth that is used as an example to show natural selection. iv] Blood cells neither swell up nor shrivel up in plasma give a suitable explanation with respect to tonicity. v] Phytohormones also called plant hormones play many important roles in plant growth and movements. a] name the type of movement exhibited by plant parts due to the effect of external factors like 1. light 2. water. b. define tropic movements c. what is meant by apical dominance? Question 5 i] What are bio-degradable wastes? ii] Give any two objectives of SWACHH BHARAT ABHIYAN iii] Arrange the following food chain in a proper sequence: a. Snake, toads, grass, grasshopper, eagle b. Big fish, mosquito larvae, big fish, guppies. iv] Give the difference between carinal nerves and spinal nerves [ nature of nerves] v] Shravya conducted a certain experiment to prove that a factor is essential for photosynthesis. At the end of the experiment, she used dilute iodine solution to test the leaf for the presence of starch. a. What would be the colour of the leaf which was half in and half out of the bottle? b. Which factor s requirement is being tested for the occurrence of photosynthesis is being tested in this experiment? c. Write the balanced equation for the process of photosynthesis. Question 6. i] State the Mendel s law of segregation ii] What happens to the rate of transpiration when a plant is exposed to : a. Too much carbon dioxide b. Windy conditions ? iii] Expand: a. FSH b. ADH Iv] which part of the ear transforms sound vibrations into nerve impulses? Where is this part located in the ear? v] Tejas loved gardening. He collected some pea seeds and planted them in his garden. He noticed that all the plants that grew from these seeds produced only purple flowers. When these plants produced seeds, he collected them and then planted them again to produce a second generation [F2]. To his amazement, he saw that some 75% of the second-generation plants produced Purple flowers while some 25% of the plants produced white flowers! a] what was the genotype of the plants that developed from the seeds that Tejas had collected originally? b] which of the flower colours is dominant? Purple or white? c] give the genotypic ratio of the second generation [F2] question 7 i] Define Mortality ii] Give the difference between mitosis and meiosis with respect to the number of daughter cells formed . iii] Krishna conducted an experiment to demonstrate a certain physiological process. He covered a well-watered potted plant with a polythene bag and placed the setup in sunlight. He observed that there were droplets collected on the inner surface of the polythene bag after a few hours. a. name the process that resulted in the formation of water droplets inside the bag. b. Define the process mentioned above. iv] Name the parts of the testes that produce: a. Testosterone b. Spermatozoa v]Draw a neat labelled diagram showing the internal structure of a mature root hair. Question 8. i] Why is the atmosphere of big cities highly polluted? ii] Give any two ape-like features of Australopithecus. iii] Fraternal twins may or may not be of the same gender. Give a reason. iv] Why are the chances of pregnancy very high on the 14 th day of the menstrual cycle? Name and define the process that occurs during this day. v] study the diagram given below and then answer the following questions: a] Name the cells labelled in A b] Identify the phenomenon occurring in B c] Mention one structural difference between 1 and 2.

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