Biology Chapter 10 – Flashcards
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The rate at which materials enter and leave the cell depends on the cell's
a. volume
b. weight
c. speciation
d. surface area
answer
d. surface area
question
In order for a cell to divide successfully, the cell must first
a. duplicate its genetic information
b. decrease its volume
c. increase its number in chromosomes
d. decrease its number of organelles
answer
a. duplicate its genetic information
question
The process that increases genetic diversity within a population is
a. asexual reproduction
b. sexual reproduction
c. cell division
d. binary fission
answer
b. sexual reproduction
question
Describe what is meant by each of the following terms: cell volume, cell surface area, ration of surface area to volume.
answer
Volume is the rate at which food and oxygen are used up and waste products are produced. The cell's surface area is the rate at which food, oxygen, and water come into the cell and waste products leave the cell. The surface area is also the total area of the of the cell membrane. The ration of surface area to volume is used to see how the cell's surface area grows compared to its volume.
question
Describe asexual and sexual reproduction as survival strategies.
answer
Asexual reproduction is faster, which enables organisms to have a better chance of surviving over other organisms with the same resources, it is also genetically identical which provides advantages as long as the conditions remain favorable. Sexual reproduction is a slower process, which a can be an advantage to species that live in environments where seasonal changes affect weather conditions and food availability , it is gives genetic diversity, if environments change some offspring might have the right genetic combinations.
question
Sister chromatids are attached to each other at an area called the
a. centriole
b. spindle
c. centromere
d. chromosome
answer
c. centromere
question
If a cell has 12 chromosomes, how many chromosomes will each of its daughter cells have after mitosis and cytokinesis
a. 4
b. 6
c. 12
d. 24
answer
c. 12
