Page 1 - Chapter 07
P. 1
7Bioenergetics
Experiment To demonstrate the process of
photosynthesis using aquatic plant like
7.1
Hydrilla
Background
Information Date ________________
Photosynthesis is the process in which green plants, algae and some bacteria
prepare their food (carbohydrates) in the presence of sunlight and chlorophyll
from carbon dioxide and water and oxygen is released.
Oxygen gas
Test tube
Water Gas bubbles
Beaker
Branches
of Hydrilla
Support
Materials Figure 7.1.1: Experiment setup to demonstrate photosynthesis in an aquatic plant
Required
Beaker, funnel, test tube, sodium bicarbonate, Hydrilla or any other aquatic plant
shoots, match box
Procedure ΠFill up 3/4 portion of 500 ml beaker with ! CAUTIONS
water.
Dissolve little sodium bicarbonate in the • Air should not enter
the test tube while
water, which provides CO2 to the plant. you invert it on the
funnel
Ž Put some Hydrilla shoots in beaker and
cover it with inverted funnel.
74
Experiment To demonstrate the process of
photosynthesis using aquatic plant like
7.1
Hydrilla
Background
Information Date ________________
Photosynthesis is the process in which green plants, algae and some bacteria
prepare their food (carbohydrates) in the presence of sunlight and chlorophyll
from carbon dioxide and water and oxygen is released.
Oxygen gas
Test tube
Water Gas bubbles
Beaker
Branches
of Hydrilla
Support
Materials Figure 7.1.1: Experiment setup to demonstrate photosynthesis in an aquatic plant
Required
Beaker, funnel, test tube, sodium bicarbonate, Hydrilla or any other aquatic plant
shoots, match box
Procedure ΠFill up 3/4 portion of 500 ml beaker with ! CAUTIONS
water.
Dissolve little sodium bicarbonate in the • Air should not enter
the test tube while
water, which provides CO2 to the plant. you invert it on the
funnel
Ž Put some Hydrilla shoots in beaker and
cover it with inverted funnel.
74
