lecture 16

Question 1

what is a nectary?

Answer 1

• a glandular structure within a flower which secretes sugary nectar to attract pollinators
• commonly located at the base of flowers, but position is not fixed within the floral morphology

Question 2

inflorescence meristem vs floral meristem

Answer 2

inflorescence meristem: indeterminate; continue to initiate meristems
floral meristem: determinate; produces floral organs

Question 3

indeterminate vs determinate

Answer 3

indeterminate: flowers bloom base to tip; keeps growing and making new flowers
determinate: flowers bloom tip to base; growth stops after flowers all initiated

Question 4

indeterminate inflorescence

Answer 4

the apical/inflorescence meristem remains indeterminate, producing lateral/floral meristems that become flowers

Question 5

determinate inflorescence

Answer 5

the apical/inflorescence meristem terminates in a floral meristem, while the lateral meristem becomes an inflorescence meristem

Question 6

gametophyte (n)

Answer 6

the multicellular haploid generation of a plant life cycle

Question 7

sporophyte (2n)

Answer 7

the multicellular diploid generation of a plant life cycle

Question 8

how are pollen grains produced?

Answer 8

each microspore undergoes mitosis to produce the microgametophyte