Question

question 7 (4 points)
(02.02 lc)
which of the following is true of modern cell theory?
a as technology improves, so will our understanding of cells
b multi - celled organisms are the focus of most modern discoveries
c early cell theory has turned out to be incorrect
d scientists have learned all they can about cells at this point

question 8 (4 points)
(02.02 mc)
rudolf virchows work resulted in claim that all cells come from preexisting cells. how did this impact the creation of cell theory?
a it significantly contradicted earlier claims about cells in cell theory
b it caused scientists to quit researching cells until new microscopes were invented
c it showed that cell theory is very misunderstood in the scientific community.
d it added to our understanding of cells, completing the claims in cell theory.

question 9 (4 points)
(02.02 mc)
which of the following best describes prokaryotes and eukaryotes?
a prokaryotes have a nucleus and eukaryotes do not
b prokaryotes do not have a nucleus; eukaryotes have a nucleus
c both have membrane - bound structures
d prokaryotes have membrane - bound structures and eukaryotes have free floating organelles

question 10 (4 points)
(02.03 mc)
which of the following organelles houses dna in eukaryotic cells?
a endoplasmic reticulum
b golgi apparatus
c nucleus
d mitochondria

Explanation:

• Question 7: As technology advances, we can use more sophisticated tools to study cells, enhancing our understanding. Modern cell - theory research is not just about multicellular organisms, early cell theory had correct foundational aspects, and we haven't learned everything about cells.
• Question 8: Virchow's "all cells come from pre - existing cells" added to the cell theory, completing its claims rather than contradicting earlier ones, and didn't cause scientists to stop researching or show a misunderstanding.
• Question 9: Prokaryotes lack a nucleus while eukaryotes have one. Prokaryotes don't have membrane - bound organelles like eukaryotes do.
• Question 10: In eukaryotic cells, DNA is housed in the nucleus. The endoplasmic reticulum is involved in protein and lipid synthesis, the Golgi apparatus in modification and packaging of proteins, and mitochondria are the power - houses of the cell.

Answer:

Question 7: A. As technology improves, so will our understanding of cells
Question 8: D. It added to our understanding of cells, completing the claims in cell theory
Question 9: B. Prokaryotes do not have a nucleus; eukaryotes have a nucleus
Question 10: C. Nucleus