9.1 Flashcards
(13 cards)
Imagine that these are cells. Which cell(s) would have the smallest surface area to volume ratios?
Largest
What aspect of cell function involves moving substances and signals among organelles?
Cellular Communication
The method by which a cell’s cytoplasm divides is called
Cytokinesis
Which of these is not an example of how substances move within cells?
Cell Cycle
Why would diffusion be more inefficient in a large cell?
It relies on the random movement of particles.
Match the terms with the definitions.
Interphase
The stage during which the cells grows, carries out cellular functions, and replicates its DNA.
Cytokinesis
A cell’s cytoplasm divides, creating two new cells.
Chromatin
The relaxed form of DNA in the cell’s nucleus.
Chromosome
The structure that contains genetic material that is passed from generation to generation of cells.
Mitosis
The stage of the cell cycle during which the cell’s nucleus and nuclear material divide.
Of the surface area-to-volume ratio, what does the surface area represent in a cell?
plasma membrane
Which describes the activities of a cell that include cellular growth and cell division?
cell cycle
what is the cell cycle
A cell cycle is a series of events that takes place in a cell as it grows and divides.
Why are cells relatively small?
if the cell grows beyond a certain limit, not enough material will be able to cross the membrane fast enough to accommodate the increased cellular volume.
What are the stages of interphase?
Interphase has three substages: G1, S, and G2 .
What are the primary stages of the cell cycle?
interphase, mitosis, cytokinesis, g1 phase, g2 phase, synthesis phase, prophase, metaphase, anaphase, telophase.
what dose interphase mean?
the interval between the end of one mitotic or meiotic division and the beginning of another.
