Nutrition in Plants
Ques1:- What is the stomata?
Ans:- There are tiny pores present on the surface of the leaves. These pores are surrounded by guard cells. Such pores are called stomata.
Ques2:- Write the function of stomata.
Ans:- The function of stomata
(i) Transportation of gases occurs through the stomata.
(ii) Vaporisation also takes place through it.
Ques3:- Why are algae green in colour?
Ans:- Due to chlorophyll
Ques4:- What is parasite?
Ans:- The organism that derives nutrients from another organism without benefiting, it is called parasite.
Ques5:- What are algae?
Ans:- Slimy, green patches in ponds or in other stagnant water bodies are observed. These are generally formed by the growth of organisms called algae.
Ques6:- What is host?
Ans:- Some organisms allow another to live and get nutrient to itself. These organisms are called host.
Ques7:- Write the type of heterotrophic mode of nutrition.
Ans:-
(i) Parasitic mode of nutrition.
(ii) Saprotrophic mode of nutrition.
Ques8:- Name a plant which takes nutrients as parasitic mode of nutrition.
Ans:- Cuscuta.
Ques9:- Name a insectivorous plant.
Ans:- Pitcher plant.
Ques10:- Name some organisms that intake Saprotrophic mode of nutrition.
Ans:- Bacteria, Fungi and algae etc.
Ques11:- What is symbiotic relationship?
Ans:- Some organisms live together and share shelter and nutrients. This is called symbiotic relationship.
Ques12:- Name the bacteria which convert nitrogen in its soluble form.
Ans:- Rhizobium.
Ques13:- Name a organism which make a symbiotic relationship.
Ans:- Lichens.
Ques14:- Name the bacteria which are found in the roots of gram, peas and other legumes plants.
Ans:- Rhizobium.
Ques15:- What are cells?
Ans:- The bodies of living organisms are made of tiny units called cells.
Ques16:- What is cell membrane?
Ans:- The cell is enclosed by a thin outer boundary, called the cell membrane.
Ques17:- What is nucleus?
Ans:- Most cells have a distinct, centrally located spherical structure called the nucleus.
Ques18:- What is cytoplasm?
Ans:- The nucleus is surrounded by a jelly-like substance called cytoplasm.
Ques19:- What is chlorophyll?
Ans:- It is a green pigment found in plants which helps is photosynthesis.
