Question

name channeys rosadu class 3a date 12/16/25
photosynthesis involves chemical reactions in which carbon dioxide and water are converted into sugar. energy for cell activities is stored in sugar. oxygen gas is a by - product of this reaction. in addition to light, photosynthesis needs chlorophyll and enzymes (organic catalysts) which aid the reaction. enzymes are necessary for all cell reactions. the word equation for photosynthesis is:
carbon dioxide + water $xrightarrow\text{chlorophyll}{\text{enzymes and light}}$ sugar + oxygen + water
this equation tells you that the plant combines carbon dioxide and water in the presence of enzymes, light, and chlorophyll to produce sugar (food), oxygen, and water. the sugar is used by the organism as a source of energy and the oxygen is used for its respiration. excess oxygen is released into the air and is used by animals for respiration. water is released into the environment.
—— review questions ——

1. what is the function of the chloroplast?

1. the green pigment in chloroplasts is called chlorophyll.
2. why arent algae classified as plants? algae lack true roots, stems, leaves, and protected embryos.
3. photosynthesis is the process by which plants combine carbon dioxide and water to produce sugar
4. the energy source for photosynthesis is light
5. write the word equation for photosynthesis.

carbon dioxide + water

1. why do scientists use chromatography?

m. centrioles. these structures are found mainly in animal cells. they look like cylinders and are located in pairs near the nucleus. centrioles are involved in cell division.
—— review questions ——

1. the centrioles are in shape and are located near the

in cells. they are involved in the process of

Explanation:

Question 1: What is the function of the chloroplast?

Chloroplasts contain chlorophyll and enzymes needed for photosynthesis. They are the site where photosynthesis occurs, converting carbon dioxide and water into sugar (with light energy) and releasing oxygen.

From the text, it is stated that photosynthesis needs chlorophyll, and chlorophyll is the green pigment in chloroplasts.

The text - based answer (as per the handwritten response which is correct in context) is that algae lack true roots, stems, leaves, and protected embryos, which are characteristics of plants.

Answer:

The chloroplast is the site of photosynthesis, where it uses chlorophyll, enzymes, light energy to convert carbon dioxide and water into sugar (storing energy) and releases oxygen as a by - product.

Question 2: The green pigment in chloroplasts is called ______.