Question

Using a microscope, Quinlin notices a small green organelle inside a cell. Which of the following is most likely to occur first in this organelle?
A.The light-independent reactions absorb carbon dioxide to make larger organic molecules.
B.Glucose is made.
C.ATP and hydrogen are used to make larger molecules using CO2.
D.The light-dependent reactions absorb sunlight and transfer the energy to electrons.

Answer 1

Answer:

D.The light-dependent reactions absorb sunlight and transfer the energy to electrons.

Explanation:

Firstly, the organelle that was described as small green organelle inside a cell as noticed by Quinlin is the CHLOROPLAST. Chloroplast is an organelle present in the cells of green plants, in fact, it makes plants green. Chloroplast is the organelle where the unique process of PHOTOSYNTHESIS occurs in plant cells.

However, the photosynthetic process is divided into stages namely: light-dependent and light-independent stages. The light dependent stage, which involves the production of ATP (energy carrier) and NADPH (electron carrier), must PRECEDE the light independent stage or Calvin cycle. Chloroplast contains a pigment called CHLOROPHYLL, which absorbs light energy from the SUN in order to power the light dependent stage of photosynthesis.

Hence, the light-dependent reactions, which absorb sunlight and transfer the energy to electrons must occur first in the organelle.