Plant Bio Questions - Double Check!

Sorry this is a long list!
I've answered most of them, I just want to double check!

The A-, B-, and C-class gene encode proteins that function as:
   1. Promoter Regions
   2. Receptors
   3. Transcription Factors
   4. Hormones

[True/False] Seeds from some plant species that grow in temperate zones require a cold treatment before they will germinate.

[True/False] The cells of the suspensor and embryo contain the same genes but not the same populations of messenger RNAs and proteins.

[True/False] Sieve-tube elements are developmentally related to and depend on their neighboring companion cells.

[True/False] Increase in root length occurs as a result of an increase in cell number plus the elongation of cells.

[True/False] The pith occupies the central region of the primary eudicot stem.

[True/False] Specialized pericycle cells give rise to lateral roots.


Thanks y'all!!