Question

which of the following statement is incorrect about the plastids
a. Leucoplasts are primary organelles in which materials such as starch, oil and protein granules are stored
b. plastids also have their own DNA which indicates that they are originated from independent free living organisms.
c. plastid such as chloroplast are single membrane bounded organelles and are the site for photosynthesis
d. in chloroplast, numerous membrane layers embedded in the material called the stroma​

Answer 1

Answer:

Plastids are the main sites of photosynthesis in eukaryotic cells. Primary plastids are found in most algae and plants, and secondary, more-complex plastids are typically found in plankton, such as diatoms and dinoflagellates.

The ribosomes of mitochondria and chloroplasts are always smaller than 80S cytoplasmic ribosomes and are comparable to prokaryotic ribosomes in both size and sensitivity to antibiotics.

Leucoplasts are colorless plastids (without pigments), that function as storage organelles. Leucoplasts comprise amyloplasts, elaioplasts (or leucoplasts), and proteinoplasts. They store starch, lipids, and proteins, respectively.

So the correct option is 'Two'.

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Answer 2

Answer:

There are certain colorless plastids called as leucoplasts.

These are found in the non-photosynthetic parts of the plants like the roots and tubers.

These are the organelles that are involved in the storage of the food. The elaioplasts are involved in the storage of oil.

The aleuroplasts are also called as proteinoplasts. They store proteins. The amyloplasts store starch.

Thus, the correct answer is option A.