Which of the following statements is FALSE regarding asexual reproduction?
It produces genetically identical offspring.
It involves only one parent.
It is advantageous in stable environments.
It requires finding a mate.
Related Questions
All the following statements regarding sieve tube elements are true except
They are connected by sieve plates
They lack a nucleus at maturity
They have a companion cell
They have a nucleus at maturity
What is the main function of phloem fibers?
Transport of sugars
Storage of starch
Provide structural support
Conduct water and minerals
Which P-protein configuration within a damaged sieve element is MOST directly responsible for preventing excessive sap loss?
P-protein dispersing throughout the sieve element lumen
P-protein degrading into amino acids
P-protein lining the sieve element cell wall
P-protein forming a 'plug' at the sieve plate pores
Which substance is NOT transported by the phloem?
Sucrose
Amino acids
Hormones
Water and minerals
The 'polymer trapping' model explains phloem loading by suggesting that sucrose is converted into larger molecules in which specific cell type?
Sieve elements
Companion cells
Phloem parenchyma cells
Bundle sheath cells
Which cell type, responsible for assisting in the conduction of nutrients in angiosperm phloem, is absent in gymnosperms?
Sieve cells
Companion cells
Albuminous cells
Phloem fibers
Which of the following statements is FALSE regarding asexual reproduction?
It produces genetically identical offspring.
It involves only one parent.
It is advantageous in stable environments.
It requires finding a mate.
Which specific plasmodesmatal characteristic is crucial for the symplastic loading of sucrose into the phloem's sieve element-companion cell complex?
Absence of plasmodesmata between companion cells and sieve elements
Uniformly distributed plasmodesmata with a low density throughout the phloem
Branched plasmodesmata with a high density between companion cells and bundle sheath cells
Numerous plasmodesmata between companion cells and surrounding parenchyma cells, but few between companion cells and sieve elements
The vascular bundle, where the phloem is surrounded by xylem is known as
Amphivasal
Bicollateral
Amphicribal
Radial
Which of the following is NOT transported by the phloem?
Sucrose
Amino acids
Hormones
Water and minerals
