Question

Name the following:
(i) A parasitic plant with yellow, slender and tubular stem.
(ii) A plant that has both autotrophic and heterotrophic mode of nutrition.
(iii) The pores through which leaves exchange gases.
NCERT Solutions for Class 7th Science Chapter 1 Nutrition in Plants Page 9 Exercise Question 7

Answer 1

(i) Cuscuta
(ii) Pitcher plant
(iii) Stomata

Nutrition in plants

Answer 2

ANSWER:

(i)  Cuscuta (Ectoparasite) is known to be plant parasite which have its stem to be yellow in color, slender as well as tubular. Being a parasite during its evolution period of time where the parasite loses its chlorophyll.

(ii)  Each and every insectivores plant have Autotrophic as well as heterotopic mode of nutrition where the feed on other plants or insects. For example, pitcher plant, sundew lies on the categories of insectivorous plant.

(iii)  Stomata are the pores which is found in the leaves. The stomata function for exchanging the CO2 gas and O2 gas where the number of pores are presented in the leaves so called stomata.