Plant cell cycle Flashcards
Plants that use flowers to reproduce are called?
Angiosperms
Dictated by continuous generation of new cells
Growth
Achieved through cell expansion and cell division
Growth
A region of repetitive DNA sequences at the end of a chromosome
Telomere
Thread-like structures in a cells nucleus (visible only during cell division)
Chromosomes
Made up of proteins and DNA
Chromosomes
Cabbage, Haplopappus gracilis, Olea europea, Ophioglossum reticulatum
20 chromosomes, 4 chromosomes, 46 chromosomes, 1262 chromosomes
Members of a chromosome pair that are similar in size, shape, and genetic constitution
Homologous chromosomes
Homologous chromosomes have the same genetic traits but not necessarily identical, True or False?
True
Example: homologous pair carrying a gene that specifies flower color but each chromosome may contain different colors
A cell in which each chromosome occurs in pairs (somatic cells)
Diploid (2n)
A cell that has a single set of chromosomes (gametes)
Haploid (n)
The _____ is a successive series of events in the life of a dividing eukaryotic cell
Cell cycle/ cell division
The cell cycle is often represented by a ____
Circle
The period between TWO successive cell divisions, represented by a complete revolution of the circle, is?
Generation time
What happens in interphase?
Perform cell growth, DNA duplication, and preparatory stage (for M phase)
A localized areas of the plant body where mitosis and cytokinesis take place most of the time
Meristems
Cell division occur in ______ and _____
Apical meristems and Lateral meristem
Mitosis can occur in both apical and lateral meristems, True or False?
True
Mitosis can only occur in _____ of a plant body
Meristems
Allows the production and subsequent elongation of new cells, causing an increase to the length of growing stem and roots
Apical meristem
Produce additional wood and bark tissue that add girth
Lateral meristem
It is the stage between successive cell divisions
Interphase
Interphase means…
Between phases
In this stage, the cell synthesizes materials and grows and DNA duplication
Interphase
What are the subphases of interphase?
Gap I phase, Synthesis phase, and Gap II phase
Pre-synthesis phase, cell growth, duplication of organelles, one nucleolus, and light chromatin
G1 or Gap I phase
This checks for cell size, nutrients, growth factors, and DNA damage
G1 checkpoint
Duplication of nucleus, synthesis of DNA and protein, “Replicated chromosomes” after ____ phase
S phase or synthesis phase
Post-synthesis phase, cell grows more, more organelles are being made, prepares the cell for the actual division, and a larger nucleus
GII phase or Gap II phase
(Larger nucleus means two nucleoli and darker chromatin materials)
This is called the resting phase
G0 or Gap 0 phase
Cells may opt to enter G0 phase depending on ______
intrinsic and extrinsic factors (resource availability, nutritional deprivation, etc.)
In G0 phase, a cell stops performing its function (metabolic activities), True or False?
False, it continues to perform its function
Cells that enter G0 phase TEMPORARILY
Quiescent stage
Cells that enter the G0 phase PERMANENTLY
Senescent stage
What are the important processes under interphase?
DNA replication, Transcription, and Translation
It is the process of replicating DNA through semi-conservative replication
DNA replication