sieve cells of the sieve elements of phloem conduct sugars throughout the plant. The following statements given about characteistics of Sieve cells of sieve elements in seed plants;

a.)  There is no P-protein in gymnosperms

b.) Angiosperm contains sieve plate pores are open channels

c.) Pores in sieve areas appear blocked with membranes in gymnosperms

d.) Companion cells are sources of ATP and perhaps other compounds

Which of the following combination is correct?

TLS Online TPP Program

#Question id: 11594

#Unit 6. System Physiology – Plant

Given some compounds that are the first stage inhibitor of gibberellin biosynthesis except?

TLS Online TPP Program

#Question id: 32435

#Unit 2. Cellular Organization

Activation of Rho has following effects, except: 

TLS Online TPP Program

#Question id: 424

#Unit 1. Molecules and their Interaction Relevant to Biology

Phosphorylation at the expense of ATP is catalyzed by ________.

TLS Online TPP Program

#Question id: 12351

#Unit 10. Ecological Principles

All the resources a species could potentially use describe its ____________.

TLS Online TPP Program

#Question id: 23890

#Unit 13. Methods in Biology

Which of the following is an essential element of plasmids used as cloning vectors?

a. a centromere

b. a telomere

c. an origin of replication

d. a drug resistance gene