Misconception of biologystudentregardingphotosynthesis…
MazatulAzrin B. Rahman
NurulHidayah Bt. Mansor
Noriza Bt. Ishak
Photosynthesis in plants
Concept in biology
Photosynthesis is the process where it will convertslight energy into the chemical energy of sugars and other organic compounds
Site where it happen is on the chlorophyll pigment.
require carbon dioxide (CO2) and water (H2O) and store chemical energy in the form of sugar
Oxygen (O2) is a byproduct of photosynthesis and is released into the atmosphere
Equation : 6 CO2 + 6 H2O -> 6(CH2O) + 6 O2 sugar
Techniques used in determining the misconception of students Group discussion Drawings with Misconceptions (POE): These types of drawings showed some degree of understandings on photosynthesis and respiration concepts but also demonstrated some misconception but however, these drawings were misconceptions not understandings held by scientists or stated in science texts.
Comprehensive representation Drawings:
Drawings in this category were the most competent and realistic drawings of the photosynthesis and respiration in plants.
Drawings showing sound understanding, contained seven or more elements of the validated response for that particular statement
Highlight on certain components only.
Do not include chlorophyll pigment
Thought that photosynthesis is the process where gaseous exchange is occur
Take place mainly in the leaves
The leaves’ main job is to give off oxygen
The leaves’ main job is to give off carbon dioxide.
they focus on the fact that the photosynthesis occurs only in the leaves and they don’t say anything about the chlorophyll. It is possible to see this misconception in the drawings
The other misconception is they thought the Photosynthesis occur with the rise of the rains to the sky and after evaporation, their return to the ground