Question

Amyloplasts are connected with storage of
A. Starch
B. Fat
C. Glycogen
D. Protein

Answer 1

Hint: Amyloplasts are the type of plastid that has double enveloped membrane in the plant cells which are responsible for various biological pathways. Amyloplasts are a type of leucoplast which are the subcategory for non-pigment containing plastids that are colorless.

Step by step answer:Amyloplsts are the storage tissues that are present in the roots of the plants. They are used for storage and synthesize starch for the plant through the starch polymerization. The synthesis of starch relies on the transportation of carbon from the cytosol, this mechanism is currently in debate. Storage and synthesis of starch take place in chloroplasts which is a type of pigmented plastid which is involved in the photosynthesis process. Chloroplast and amyloplast are closely related to each other and they can turn into chloroplast which can be observed when potato tubers are exposed to the light and turn green. Amyloplasts are also believed to play a vital role in gravitropism as there is a special starch-accumulating amyloplast which is known as statoliths which are denser than the cytoplasm. These statoliths have a tendency to settle down of the gravity-sensing cell which is called statocytes. Gravity is sensed in the root cap in the roots which is present at the tip of the roots. If the root cap is removed it loses the ability to sense gravity.
Hence, the correct option is A. Starch

Note: The gravity sensing ability of amyloplasts helps the plants to percept the gravity and trigger asymmetrical distribution of auxin which causes growth of the stems against the gravity influence as well as optimum growth of the roots along the gravity vector. Therefore, amyloplast plays an important role in plants.