Sieve tubes have

The following questions consist of two statements, one labelled assertion and the another labelled reason. Select the correct answer from the codes given below: Assertion: Long distance flow of photo assimilates in plants occurs through sieve tubes. Reason : Mature sieve tubes have partial cytoplasm and perforated sieve plates

Sieve tubes are ............. And have tubular cells with ............walls.

Sieve tubes are ideal for nutrient transport because they have

Sieve tubes are characteristed by

Sieve tubes are characteristed by

Sieve tube is

Sieve tube is

The protophloem has (A)____ sieve tubes whereas metaphloem has (B)___ sieve tubes.

The protophloem has (A)____ sieve tubes whereas metaphloem has (B)___ sieve tubes.