Life Processes Part - 1 Nutrition / Photosynthesis

       BIOLOGY 

                                     CLASS - 10th

                                     CHAPTER - 1

                   Life Processes

                             PART - 1

By Exam Deeplearning

# Nutrition

  • Nutrition is the process of intake of nutrients and its utilization by living organisms.

  • Nutrients : Substance which provides energy.

  • Macronutrients : Required in large amounts.

  • Micronutrients : Required in less amounts.

  • Source of nutrients : Food

  • Components of food

  1. Carbohydrates

  2. Proteins

  3. Fats / Lipids

  4. Vitamins

  5. Minerals

  6. Water

  7. Roughage

  • Mode of Nutrition

  1. Autotrophic

  • Organisms synthesize their own food from taking raw materials from the environment are called Autotrophs.  Example : All green plants, Algae and Cyanobacteria etc.

      2. Heterotrophic

  • Organisms dependent on Autotrophs either directly or indirectly for its nutrition are called Heterotrophic.

  • Example : Animals, Humans, Insects etc.

  • Photosynthesis

  • The process through which all green plants, Algae, Cyanobacteria organisms prepare its food in presence of sunlight and chlorophyll utilising inorganic material like Co2 , H2O.

  • Equation of photosynthesis

  • Steps of photosynthesis

  1. Absorption of sunlight by chlorophyll.

  2. Conversion of light energy into chemical energy.

  3. Photolysis of water into (H2O) Hydrogen and Oxygen.

  4. Reduction of carbon dioxide into carbohydrates.




Comments

Post a Comment

Popular posts from this blog

Important G.K Question & Answer

  Q.   Mohiniyattam classical dance belongs to which state? Kerala Tamil Nadu Andhra Pradesh Maharashtra Solution : The correct answer is Kerala Key Points Mohiniyattam, (Malayalam: “dance of the enchantress”) also spelled mohiniattam or mohiniyattam, semi classical dance form from the state of Kerala, southwestern India. Additional information                                       Indian classical dance           Classical dance                     State Lavani Maharashtra Kuchipudi Andhra Pradesh Bharatanatyam Tamil Nadu Mohiniyattam, Kathakali Kerala Kathak           North india Q.  Sreedharan Pillai has been appointed as the Governor of which state in July 2021? Tamil Nadu Andhra Pradesh Maharashtra Goa Solution : The correct answer is Goa. Key Points P. S. Sreedharan Pillai (born 1 December 1954) is an Indian politician, attorney, and author, who is currently serving as the 19th Governor of Goa  state. He had also served as the Governor of Mizoram. Additional information Cur
Read more

What is real number

Image
 What is real number Real numbers are nothing but  numbers that include both rational and irrational numbers, in other word the combination of rational and irrational numbers . Rational numbers such as integers (-2, 0, 1), fractions(1/2, 2.5) and irrational numbers such as √3, π(22/7), etc., are all real numbers. In mathematics, real numbers are a set of numbers that include both rational and irrational numbers. Real numbers can be represented on a number line and are used to describe quantities that can be measured or expressed as decimal numbers.   Real numbers include whole numbers (such as 0, 1, 2, 3, etc.), integers (such as -3, -2, -1, 0, 1, 2, 3, etc.), rational numbers (such as fractions or decimals that can be expressed as a ratio of two integers, like 1/2 or 0.75), and irrational numbers (such as π or the square root of 2, which cannot be expressed as a fraction and have non-terminating or non-repeating decimal expansions). The set of real numbers is denoted by the symbol ℝ.
Read more

Most important questions of biology

                                  💦  SOME IMPORTANT  💢    QUESTIONS OF BIOLOGY Q 1.) How many chambers are present in human heart 💖💖 ? ( a )  3   ( b )  4 ( c )  2 ( d )  5 Q 2.) The xylem in plants is           responsible for …. ( a ) Transportation of food ( b ) Transportation of water ( c ) Transportation of oxygen ( d ) Transportation of amino acids Q 3.) Which is the largest endocrine           glands. ( a ) Adrenal Gland ( b ) Pituitary Gland ( c ) Thyroid Gland ( d ) Thymus Gland Q 4.) Through which of the following        structures cockroaches breathe ? ( a ) Lungs ( b ) Gills ( c ) Skin ( d ) Trachea Q 5.) Multiple fission occurs in ….. ( a ) Euglena  ( b ) Paramoecium ( c ) Yeast ( d ) Plasmodium Q 6.) Hydra reproduces by the process of ….. ( a ) Budding ( b ) Multiple fission ( c ) Binary fission  ( d ) Layering Q 7. ) Which of the following is a part  Of male reproductive system ? ( a ) Vas deferens ( b ) Fallopian tube  ( c ) Ovum  ( d ) Placenta
Read more