Question

Sugar transport elements of gymnosperms and pteriodophytes are

• A. Sieve cells
• B. Sieve elements
• C. Sieve tubes
• D. Sieve tube elements

Answer 1

The correct option is A Sieve cells

Both the gymnosperms and the pteridophytes have sieve cells as the phloem elements involved with the conduction of sugars. Sieve tube elements are the features of the angiospermic phloem. Sieve cells do not show the sieve plates like that in the sieve-tube elements. They have pores and they are elongated cells. These do not show the presence of companion cells like sieve-tubes, instead, they are present along with the albuminous cells.

Hence, the correct answer is 'Sieve cells'