Which organelle is labeled i?
nucleus
mitochondrion
ribosome
chloroplast

The organelle labelled 'I' in the figure is Chloroplast.

Chloroplast is a membrane bound specialized organelle, which is present in the plants and algal cells. It contains a system of interconnected membranes, which are called as thylakoid membranes ( site of light reaction)

Chloroplast is the site of synthesis for food in green plants ( photosynthesis). It consists of a green pigment, which is called as chlorophyll. This pigment absorbs energy from sun through a series of chemical reactions. This eventually results in the formation of an organic compound that is carbohydrate ( glucose).

The label I is displaying chloroplast.

Further Explanation:

Plant cells are known to be eukaryotic cells that are found in the green plants. They have a distinctive feature that involves primary cell walls comprising of hemicelluloses, cellulose, and pectin. It has plastids along with the ability to perform photosynthesis as well as aids in storing starch.

The chloroplast is a special organelle found in plant cells and these organelles comprise of chlorophyll which is responsible for producing green color in plants. It is also known to be responsible for enabling the process of photosynthesis to takes place so that the plants are able to transform the light energy into the chemical one.

These are found within the mesophyll cells of the plant leaves and are usually 30 to 35 per mesophyll cell. It contains an inner as well as outer membrane along with a void intermediate region between them. Within the chloroplasts there are the stacks of thylakoids which are referred to as grana. Stroma have the dense fluid found inside it. Thylakoids comprise of chlorophyll which is needed for the plant to undergo the process of photosynthesis.

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Answer Details:

Grade: High School

Subject: Biology

Chapter: Plant Cell

Keywords:

Plant cell, chloroplast, inner membrane, outer membrane, stroma, grana, thylakoid, photosynthesis, mesophyll cells, outer membrane, thylakoid.

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