Which one of the following performs photosynthesis in cactus?
Spines
Stem
Roots
Leaves
When you are eating sugarcane, you are actually eating the
fruit of the sugarcane
root of the sugarcane
stem of the sugarcane
grains of the sugarcane
The stem of a plant prepares food for it. The colour of the stem will be
green
brown
red
yellow
Which one of the following structure of a plant exchanges gases?
Buds
Fruits
Flowers
Cactus is a desert plant. To minimise loss of water it does not have leaves. The stem is green and waxy and prepares food for the plant. This shows that:
habitat changes according to plants
plants modify according to habitats
cactus is insectivorous in nature
wax is obtained from cactus
Harish wants to test the presence of starch in a leaf. Given below are the instructions to conduct the experiment. Which one of the following step is NOT necessary?
boil the leaf first in water and then in alcohol
wash the bleached leaf
heat the leaf on a hot flame
add a few drops of iodine solution to the bleached leaf
Which one of the following are called food factories of the plant?
In carrot ,food is stored in
leaves
stem
roots
flowers
The tiny pores present on the leaves of plants are called
stomata
cells
chlorophyll
grains
Which one of the following is a seed containing stored food?
Potato
Mango
Maize
Grapes