Question Paper class 10 CBSE SA-1 for 2015

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Obtaining and Utilization Food Class 7 Science Solved question (Basic Science Questions answers)

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A. Answer these questions 1. Name the three life process help living being to procure energy from food? Answer: Three life processes that help living organisms to procure energy from food are: (i) Digestion (Nutrition) (ii) Respiration (iii) Transportation 2. What are Autotrophs? Name an organism other than other than green plant that is an autotroph. Answer: Autotrophs are organisms that can prepare their own food. Chlamydomonas is a type of green algae which is an example of an autotroph, other than green plants. Cyanobacteria are also an example of autotroph. 3. Name three type of heterotrophic nutrition Answer: Three types of heterotrophic nutrition are: (i) Saprophytic nutrition (ii) Parasitic nutrition (iii) Holozoic nutrition 4. What are enzymes? Answer: Enzymes are chemical substances that act as biological catalysts and are important for carrying out biochemical processes, such as digestion, in our body ...
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Class9 Biology chapter Cell the Fundamental unit of life :Assignment solved

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1. What is plasma membrane? What are their functions? Ans: Plasma membrane also called as cell membrane, is the outer covering of a cell that separates the cell contents (protoplasm) from the surrounding medium. It is made up of proteins and lipids. It gives form (shape and size) to the cell It maintains the individuality of the cell (i.e. seperates cells) It keeps the cell contents in place 2. What are cell organelles ? Ans: The certain specific living parts of a cell with a definite function are celled Cell organelles. All cell are found to have same organelles and together these constitute to the basic unit of life. 3. What is cellulose and its functions? Ans: Cellulose is the main component of a plant cell wall. It is responsible for giving structural shape to the cell and also to protect the protoplasm. 4.  What is a Prokaryotic cell? Give an Example. Ans: The cells that do not hav...
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Diversity in Living Organisms class 9 solved Questions for CBSE exam

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Trend Setter Questions with Solutions : Diversity in Living Organisms  more than 150 solved Questions  One Mark Questions: 1) What is biological classification ? Ans: Grouping of organisms based on similarities & dissimilarities is called biological classification. 2) What is Taxonomy ? Ans: The systematic study of identification classification and naming of oraganisms is called taxonomy. 3) Who made 1st attempt for scientific basis of classification ? Ans : Aristotle. 4) On what morphological criteria Aristotle classified the plants ? Ans : Based on the morphological nature of the stem. 5) Based on the nature of the steam name the types of plants classified by Aristotle. Ans: Herbs, Shrubs & Trees. 6) Name the 2 kingdoms of classification ? Ans: (1) Plantae & Metaphyta (2) Animatia Metazoa 7) What are prokaryotas ? Ans: The organisms which do not have well organized nucleus in their cell are called prokaryotes. OR Organisms co...
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Physics : Class X Chapter: ELECTRICITY Assignment 2012-13

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Sadhana Devi Vidyapith, Samastipur ASSIGNMENT -1, (2012-13) By JSUNIL   Sub. – Physics, Class - X   Chapter -ELECTRICITY One mark questions 1. Define the term “electric current”. 2. Define the term ‘resistivity’ of a material. 3. How is a Voltmeter connected in the circuit to measure the potential difference between two points? 4. You have two metallic wires of resistances 6 ohm and 3 ohm. How will you connect these wires to get the effective resistance of 2 ohm? 5. If the distance between two electric charges is doubled, how much will the force exerting between them change to? Two marks questions 6. State Ohm’s law. “The resistance of a conductor is 1Ω.” What is meant by this statement? 7. Why are coils of electric toaster made of an alloy rather than a pure metal? 8. Why is the series arrangement not used for domestic circuits? 9. A wire of resistivity ‘r’ is stretched to double its length. How does it affect the (a) resistance (b) resistivity? 10. Write tw...
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Light Shadow and Reflections for CBSE Class 6th

CBSE TEST PAPER SCIENCE- LIGHT , SHADOWS AND REFLECTIONS Light Shadow and Reflections for CBSE Class 6th VI – SCIENCE WORKSHEET  Light, Shadows And Reflections I) Fill in the blanks: 1. __________________ helps us to see objects.(Non luminous) 2. Objects that give out or emit light of their own are called _________(Luminous) 3. ____________objects allow light to pass through them completely. (Transparent) 4. ____________objects do not allow the light to pass through it at all. (Opaque) 5. ____________objects allow the light to pass through them partially.(Translucent) 6. Light travels in a _____________.(Straight path) 7. _____are formed when an opaque object comes in the path of light.(Shadow) 8. __________ and ___________ objects are essential for the formation of shadows on a screen.(Light,Screen) 9. A shadow cast by the heavenly bodies is called an ________( Eclipse) 10. Images formed by a pin –hole camera are ______________(inverted) 11. We ca...
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