life processes class 10 questions and answers
Answers
unlike the unicellular organisms, the multi-cellular organisms have complex body structures and these cells are not in direct contact with surrounding environment so, simple diffusion cannot meet the oxygen requirement of all these cells.
2. What criteria do we use to decide whether something is alive?
Answer any visible movement such as walking, breathing, or growing is generally used to decide whether something is alive or not.
3. What are outside raw materials used for by an organism?
answer :various outside raw materials used by an organism are as follows:→ Food as source of supplying energy and materials.→ Oxygen for breakdown of food to obtain energy.→ Water for proper digestion of food and other functions inside the body. The raw materials required by an organism will vary depending on the complexity of the organism and its environment.
4. What processes would you consider essential for maintaining life processes such as nutrition, respiration, transportation, excretion, etc. are essential for maintaining life.
Q1 Name the first three compound of glucose breakdown during respiration ? where does it takes place ?
Ans1) pyruvate acid (3 carbon compound) cytoplasm
Q2 define nutrition and nutrients with examples?
Ans) nutrients is a define to get the energy and nutriton is the process which eat nutrients to get energy like carbohydrates, fats, protiens etc
Q3 Define the structure of alveoli ?
Ans) alveoli is a sacs like structure called alveoli . The inner surface of the alveoli has a very large to get exchange of respiratory gases. and they are surrounded with a thin capilliaries that oxygen is taken into the body and carbondioxide is eliminated.
QUESTIONS FOR PRACTICE IN HOME
Q1 What are life process?
Q2) Diffreniate between heterotrophic and autotrophic nuritions ? explain with examples? (3 marks)
Q3) What is the role of valves in the heart?
Q4) Describe the functions and structure of nephrons and alveoli ?
Explanation: