Which general statement is typically correct about molecularprocesses in biology?

Eukaryotic processes are different than prokaryotic processesbecause they have fewer parts

Eukaryotic processes are similar to prokaryotic processes butare often more complicated

Eukaryotic and prokaryotic processes are exactly the same

Eukaryotic and prokaryotic processes are completelydifferent

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Sixta KovacekLv2

28 Sep 2019

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1.You are working in a laboratory producing new antibiotics for human and veterinary use. One compound with potential value inhibits the action of prokaryotic ribosomes. The compound, however, was shown to inhibit the growth of animal cells in culture. What is one possible explanation for its effect on animal cells?

2. A research laboratory in pharmaceutical company is studying environmental factors that would inhibit the growth of Archaea. One question they have is if adding of antibiotic penicillin would be effective in controlling their growth. Explain to your best knowledge the probable results of an experiment in which penicillin is added to a culture of Archaea?

3. Most medically used antibiotics interfere with either peptidoglycan synthesis or ribosome function. Why do you think the cytoplasmic (cell) membrane would be a POOR target for antibacterial medications?

Compare and describe the following Prokaryotic and Eukaryotic cell structure/functions:

a. General Characteristics:

b. Size:

c. Cell Division:

d. Structures:

e. Cell Membrane:

f. Nucleus:

g. Functions:

h. Transport:

Glycolysis occurs:
a. only in the presence of oxygen
b. only in eukaryotic cells
c. whether or not oxygen is present
d. in mitochondria
e. in cells without the assistance of enzymes

Glycolysis:
a. releases all the of the chemical energy in the original glucosemolecule
b. occurs in mitochondria
c. produces two molecules that contain much of the chemical energyin the original glucose molecule
d. does not produce any ATP molecules
e. does not require enzymes

The citric acid cycle:
a. produces carbon dioxide. Most of the chemical energy istransferred to the reduced coenzyme NADH
b. directly produces most of ATP formed by breakdown of a glucosemolecule
c. is located in the cytoplasm
d. occurs in both prokaryotic and eukaryotic cells
e. does not require enzymes

In anaerobic environments, yeast cells:
a. cannot make any ATP
b. continue to make ATP by oxidative phosphorylation
c. make more ATP than they do when they are in an aerobicenvironment
d. transfer electrons from NADH to pyruvate so that glycolysis cancontinue
e. immediately die

I have looked everywhere in the chapter and cannot quite find theanswers. These questions seem ambiguous; can someone enlighten me?

17. What is citizen science? a) Science projects in which scientists study citizen b) Science project in which citizens are trained to become scientists in the future c) Science projects in which the public participates by collecting data, analyzing data, or participating as subjects d) Science projects in which scientists study the nature of being a good citizen

18. When considering the evolutionary tree of life and the three domains of life, which statement best describes what likely happened over the course of millions of years of evolution? Choose one:

A. Bacterial and eukaryotic cells are more closely related to each other than to archaeans, as evidenced by the fact that bacteria and eukaryotes do not inhabit the most extreme environments.
B. Although their cell structures are very different, archaean and eukaryotic cells are more closely related to each other than to bacteria, as evidenced by the fact that Bacteria was the first domain to split from the shared ancestor of Archaea and Eukarya.

C. Bacteria and archaeans are more closely related to each other than to eukaryotes, as evidenced by their cell structures. Bacteria and archaeans are prokaryotic, while all eukaryotic cells contain mitochondria and other membrane-bound organelles.
D. The three domains of life are equally divergent from one another, so no two domains are more closely related to each other. This is supported by the evolutionary tree of life because three branches extend from one node millions of years ago.

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