Exercise

1.  Question 1:
Which of the following is not a parasite?
 Dog
 Leeches
 Lice
 Mosquito
 Question 2:
Greenplants use which of the following to prepare food?
 Carbon dioxide
 Sunlight
 Water
 All of these
 Question 3:
Which of the following are partial parasites?
 Green plants
 Non-green plants
 Either a or b
 Neither a nor b
 Solution :
The plants that have green leaves and can synthesis their food but are
dependent on other plants for shelter and water are calledpartial parasitic
plants.For example – Dodder or cuscuta.
 Question 4:
The life processes that provides energy is/are
 Nutrition
 Respiration

2.  Both nutrition and respiration
 transpiration
 Question 5:
Iodine used to detect presence of starch. It gives starch
 Red colour
 Green colour
 Blue-black colour
 Colourless appearance
 Correct Option is :
3
 Solution :
Iodine used to detect presence of starch. If starch is present in food it will
turn blue-black colour when iodine is added.
 Question 6:
Rhizobium is an example of
 Symbiosis
 Parasites
 Insectivorous
 None of these
 Solution :
Rhizobium is an example of Symbiosis.
 Question 7:
Pitcher-plant is
 autotrophic
 saprophytic

3.  insectivorous
 none of these
 Question 8:
Saprophytes takes nutrition from
 dead and decaying matter
 plants
 synthesis their own food
 feeds on animals
 Question 9:
Greenplants are:
 Herbivores
 Autotrophs
 Hetrotrophs
 Omnivores
 Question 10:
Lichens are the association between
 algae and roots
 algae and fungi
 fungi and bacteria
 bacteria and algae
Short Q&A
Q1:Differentiate between nutrients and nutrition.
Q2:Differentiate between autotrophs and heterotrophs.
Q3: Explain the food factory of plants.
Q4: How do plants obtain raw materials from the surrounding?

4. Q5: Draw a labelled diagram of cell showing nucleus and cytoplasm.
Q6: How water and minerals are transported to leaves from roots?
Q7: Define chlorophyll.
Q8: Explain the role of chlorophyll in the process of photosynthesis.
Q9: Define photosynthesis along with the equation for the same.
Q10: Draw a labelled diagram showing the process of photosynthesis.
Q11: Draw diagram of a leaf showing chlorophyll, and stomata in it.
Q12: What is the function of stomata in leaf of a plant?
Q13: Draw a diagram of stomata showing guard cells in it.
Q14: How would you test the presence of starch in leaves?
Q15: How humans and animals are directly or indirectly dependent on plants?
Q16: Why do we need food?
Q17: Whether food is made in all parts of a plant or only in certain parts? Explain.
Q18: What is cell?
Q19: What is the cell membrane?
Q20: What are the main requirements of photosynthesis?
Q21: Why colours of algae are green?
Q22: What are the main components presents in carbohydrates?
Q23: From where do the plants obtain nitrogen?
Q24: What do you mean by parasitic nutrition?
Q25: Define insectivorous plants along with examples.
Q26: What is saprotrophic mode of nutrition?
Q27: Explain the mode of nutrition in fungi?
Q28: What do you understand by symbiotic relationship present in some organism?
Q29: How nutrients are replenished in soil?
Q30: What do you mean by Symbiosis?
Q31: What is the role of leguminous plants in replenishing soil fertility?
Q32: Distinguish between a parasite and a saprotrophs.
Q33: Explain how Pitcher plants get their nutrition?
Q 34 Some plants, like the cuscuta, snatch food from other plants by
climbing onto them. The plants on which they climb are called HOST

5. Q35 The lower epidermis has openings called the stomata
36) The stomata take in carbon dioxide from the ___