Q. The first formed primary phloem is referred as ...A… The later formed primary phloem is referred as …B… Choose the correct combination of A and B
A) A–protoxylem; B–metaxylem
B) A–protophloem; B–sieve tube cells
C) A–metaphloem; B–sieve tube cells
D) A–protophloem; B–metaphloem
Explanation
The first formed primary phloem consists of narrow sieve tubes and is referred to as protophloem and later formed primary phloem is referred to as metaxylem
Reviewed by Dr. Abubacker
Physics Educator & NEET/JEE Specialist
Ph.D. in Physics with 19+ years of teaching experience.