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Question
Which of the following is not a constituent of chloroplast?
Which of the following is not a constituent of chloroplast?
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Solution
The correct option is D Cristae
Chloroplasts in plants are large organelles that are bound by a double membrane (inner and outer membrane) called the chloroplast envelope. The inner membrane encloses a fluid called the stroma. In the stroma, there are disc-shaped structures called thylakoids. These thylakoids are stacked upon one another to form the granum. Thylakoids are the site of the light-dependent reactions. The chloroplast is a semi-autonomous organelle, as it has its own DNA and ribosomes. Thus they are capable of making their own proteins. As shown in the diagram stroma lamellae, ribosomes, and stroma are all important parts of a chloroplast.
Cristae is the folds present in mitochondria. Mitochondria are also known as the powerhouse of a cell and are the site for cellular respiration.
Chloroplasts in plants are large organelles that are bound by a double membrane (inner and outer membrane) called the chloroplast envelope. The inner membrane encloses a fluid called the stroma. In the stroma, there are disc-shaped structures called thylakoids. These thylakoids are stacked upon one another to form the granum. Thylakoids are the site of the light-dependent reactions. The chloroplast is a semi-autonomous organelle, as it has its own DNA and ribosomes. Thus they are capable of making their own proteins. As shown in the diagram stroma lamellae, ribosomes, and stroma are all important parts of a chloroplast.
Cristae is the folds present in mitochondria. Mitochondria are also known as the powerhouse of a cell and are the site for cellular respiration.
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