BIOS -251 ;EXAM 2 WITH QUESTIONS
AND WELL VERIFIED ANSWERS
[ALREADY GRADED A+}
Cell division that produces reproductive cells (gametes) in sexually reproducing organisms -
ANS✔✔---Meiosis
Compare and Contrast Mitosis and Meiosis - ANS✔✔---Mitosis produces two diploid
(2n) somatic cells that are genetically identical to each other and the original parent cell,
whereas meiosis produces four haploid (n) gametes that are genetically unique from each
other and the original parent (germ) cell.
Number of Chromosomes in Humans... - ANS✔✔---46
Haploid Number of Chromosomes In Humans - ANS✔✔---23
Control center of the cell; a part of the cell containing DNA and RNA and responsible for
growth and reproduction - ANS✔✔---Nucleus
, Processes and transports proteins made at attached ribosomes; synthesizes phospholipids
- ANS✔✔---Rough Endoplasmic Reticulum (RER)
A cell organelle that helps make and package materials to be transported out of the cell -
ANS✔✔---Golgi Complex
Cell organelle filled with enzymes needed to break down certain materials in the cell -
ANS✔✔---Lysosomes
Produce hydrogen peroxide, detoxifies harmful substances, oxidizes fatty acids, and
protects cell from free radicals - ANS✔✔---Peroxisomes
- Hollow, cylindrical organelle that disposes of unnecessary and damaged proteins
- Contain enzymes that break down tagged, targeted proteins into short peptides and amino
acids - ANS✔✔---Proteasomes
- Located near the nucleus and help to organize cell division
- Form mitotic spindle during mitosis - ANS✔✔---Centrioles
A structure in cells containing two centrioles from which the spindle fibers develop and
organized - ANS✔✔---Centrosome
Cell division in which the nucleus divides into nuclei containing the same number of
chromosomes - ANS✔✔---Mitosis
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