The introductory passage describes the use of fluorescent markers to identify halomucin outside of the cell. How could you distinguish between a prokaryotic cell and a eukaryotic cell by using fluorescent markers to identify ribosomes and to identify DNA?
Choose the best answer.
Hints
Choose the best answer.
The ribosomes would be close to the cell wall and the DNA would be in the center of the cell in prokaryotes, but both would be close to the cell wall in all eukaryotes. The functional ribosomes would be scattered throughout the cell in prokaryotes but close together in the nucleus in eukaryotic cells. The ribosomes and DNA would appear farther apart in prokaryotes and eukaryotes because this is important for regulating gene expression in prokaryotes. The ribosomes and DNA would appear close together in prokaryotes because transcription and translation can occur simultaneously, whereas they would be in different locations in eukaryotes.
The introductory passage describes the use of fluorescent markers to identify halomucin outside of the cell. How could you distinguish between a prokaryotic cell and a eukaryotic cell by using fluorescent markers to identify ribosomes and to identify DNA?
Choose the best answer.
Hints
Choose the best answer.
The ribosomes would be close to the cell wall and the DNA would be in the center of the cell in prokaryotes, but both would be close to the cell wall in all eukaryotes. |
The functional ribosomes would be scattered throughout the cell in prokaryotes but close together in the nucleus in eukaryotic cells. |
The ribosomes and DNA would appear farther apart in prokaryotes and eukaryotes because this is important for regulating gene expression in prokaryotes. |
The ribosomes and DNA would appear close together in prokaryotes because transcription and translation can occur simultaneously, whereas they would be in different locations in eukaryotes. |
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Question 1
What is the smallest cell you could find?
Mycoplasma |
Archaea |
Bacteria |
Cyanobacteria |
Question 2
TEMs appear as 3D images
True |
False |
Question 3
Bacteria are what cell type? Write one word as the answer in lowercase and using no syntax.
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Question 42 pts
ALL eukaryotic cells have which of the following. Click all that apply.
nucleoid |
cell membrane |
chloroplasts |
nucleus |
membrane enclosed cell organelles |
mitochondria |
Question 5
Prokaryotes and eukaryotes both have which if the following cellular components. Click all that apply.
ribosomes |
plasma membrane |
DNA |
nucleoid |
Question 6
I am made of one 60s and one 40s subunit, which organelle am I?
protein |
lipid |
bacterial ribosome Question 9 The difference between the rough and smooth ER is
Question 10 The site where many lipids, including cell membrane is produced.
Question 11 Name the organelle: In muscle cells in particular, I would increase in number and size in response to frequent exercise
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Question 12 In animal cells, glucose would be mobilized from its storage molecule (glycogen) in this part of the cell.
Question 13 Which of these is associated with the rough ER
Question 14 Which organelle sorts, modifies and stores substances produced on the rough ER. Write two words as the answer in lower case separated by a space. Question 15 Which organelle is responsible for ATP production. Write one word in the singular as the answer. Question 16 You inherit all of your mitochondria from your
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Question 27
What accounts for 40% of the protein in our bodies?
Fibers |
Cells |
Collagen |
Keratin |
Question 28
Animal cells have cell walls
True |
false |
1. Many bacteria exist in biofilms in nature. Based on the information in the passage and in the chapter, is it possible to create a pure culture of a species that normally exists in biofilms?
Select the best answer.
A) Yes, because many species can have planktonic growth or live within a biofilm, and a biofilm can contain a single species. | |||||
B) Yes, because bacteria are most commonly found in sessile forms and a biofilm contains sessile bacteria. | |||||
C) No, because a pure culture by definition must grow in medium and would not be able to form a biofilm. | |||||
D) No, because biofilms always contain many species of bacteria and a pure culture does not. 2. The introductory passage described a consortium consisting of ANME and a sulfur oxidizing bacteria. Which of the following would be important considerations in choosing the best technique to determine the number of living cells in a culture of the consortium? Select the best answer.
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