02: A student carried out an investigation to find the effect of carbon dioxide concentration on the rate of photosynthesis of an aquatic plant.
The apparatus that the student used is shown in Fig. 2.1. The student was advised to use a
light meter positioned at the same distance from the lamp as the pond plant. The student
counted the number of bubbles produces by the cut end of the stem.
de sodium
hydrogencarbonate
solution
thermometer
movable lamp
stop watch
water-bat
pond plant
ru
Fig. 2.1
(a) Explain why the student included the following in the apparatus.
) The beaker of water and the thermometer
(1)
The light meter and the ruler.

1. glaciers are melting

2. more water going into ocean (water's such as fresh waters, etc)

your answer is going to be physical weathering

1. amino acid refers to the fundamental building block of proteins, comprising of an amino group and a carboxyl group.

2. catalyst refers to any substance, which increases the rate of chemical reaction without being used up in the reaction.

3. a complex molecule containing he genetic code is dna or deoxyribonucleic acid.

4. an enzyme refers to a molecule of protein, which is unique in accelerating up a particular chemical reaction in the biological systems.

5. nucleic acid refers to an sequence of sugars, phosphates, and nitrogenous bases, for example, dna and rna.

6. a protein refers to a large, composite organic molecule comprising of a huge number of amino acids associated together with the of peptide bonds.

7. rna refers to a nucleic acid that takes part in the production of proteins.

8. substrate refers to a compound, which takes part in a chemical reaction, and is chemically modified by the reaction.