Q48 of 367 Page 25

Define
(i) saprophyte, and

(ii) parasite. Name two saprophytes and two parasite

(i) Saprophytes obtain their food from dead and decaying organisms. Fungi and many bacteria are examples of saprophytes.

(ii) Parasites live on or in other organisms and obtain their food from them. Leech, mosquito, plasmodium are examples of parasites.

Why do plants need nitrogen? How do plants' obtain nitrogen?

Define

(i) saprophytic nutrition

(ii) parasitic nutrition, and

(iii) holozoic nutrition. Give one example of each type.

How does carbon dioxide from the air enter the leaves of a plant to be used in photosynthesis?

How does water from the soil reach the leaves of a plant to be used in photosynthesis?

Define(i) saprophyte, and(ii) parasite. Name two saprophytes and two parasite