Question Paper class 10 CBSE SA-1 for 2015

Comments

Post a Comment

Popular Post

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

Image
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 ...
Read more

Class9 Biology chapter Cell the Fundamental unit of life :Assignment solved

Image
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...
Read more

IX Physics Class - IX Chapter - MOTION Assignment 2012-13

Sadhana Devi Vidyapith , Samastipur  ASSIGNMENT -1, (2012-13) By JSunil Sub. – Physics, Class - IX Chapter - MOTION 1 Mark questions Q. 1. Define the term displacement. Is it a vector quantity or a scalar quantity? Q. 2. Define the term distance. Is it a vector quantity or a scalar quantity? Q. 3. The displacement of a body can never be greater than the distance covered by a body. Is the statement true or false? Q. 4. Can a body have zero velocity and still acceleration? Give example. Q. 5. What is the nature of distance time graph for uniform motion of an object? Q. 6. What is the acceleration of a freely falling body? Q. 7. What is the acceleration of a body moving with uniform velocity? Q. 8. What does the slope of a distance-time graph gives? Q. 9. What does the area of a velocity-time graph gives? Q. 10. Give two examples of vector quantities. 2 Mar...
Read more

8th Class Cell structure and function solved questions(Biology)

Image
Q  Name the cells having branches structure. Ans Nerve Cell. Q Why cells could not be observed before seventeenth century? Ans Cells could not be observed before seventeenth century because till that time microscope was not invented. Q Why plant cell have cell wall? Ans Plant cells need protection against variations in temperature, high wind speed, atmospheric moisture, etc. They are exposed to these variations because they cannot move. That's why they have cell wall. Q Which organism has the smallest cell? Ans  Mycoplasmas, a bacteria has the smallest cell of the size of 0.1 micron i.e. ten thousandth part of a mill metre. ' Q  Which is the largest cell visible by unaided eye? Ans Ostrich egg has the largest visible cell by unaided eye. Q Name the four elements, which fonn major part of protoplasm. Ans These are carbon, hydrogen, oxygen and nitrogen. Q Give two examples of prokaryotes. Ans Bacteria and blue green algae. Q  Name the la...
Read more

VI (6th) Fun with Magnets MCQ’s

Image
CBSE - Class 6 - Science Chapter :Fun with  Magnets Multiple choice Questions (1) When a magnet is suspended freely it always aligns itself in --------  direction? a) North        b) N-S          c) N-W         d) N-E (2) ---------- is the only natural magnet. a) Magnetite         b) Ebonite      c) Cobalt      d) Nickel (3) Which of the following cannot be used to make a magnet? a) Cobalt              b) Iron                      c) Ebonite     d) Steel (4) Which of the following is not a non-magnetic substance? a) Glass    ...
Read more