Thanks a lot for your help. I have completed my multiple choice questions and wa
ID: 175717 • Letter: T
Question
Thanks a lot for your help. I have completed my multiple choice questions and want to double check my answers before submitting it. I don't really need an explanation for the questions.
5. Which of the following structures are absent in bacteria?
a. ribosomes
b. cell walls
c. nucleoids
d. mitochondria
e. plasma membranes
6. Which of the following is NOT true for bacteria?
a. They have a higher surface-volume ratio than eukaryotes.
b. They are more versatile than eukaryotes with regard to metabolism.
c. They use ATP for energy storage.
d. They have an extensive endomembrane system.
e. They have electron transport chains.
7. Which of the following answers is NOT true for photoautotrophs?
a. They use organic substances as a carbon source.
b. They use light as an energy source.
c. They include plants.
d. They include some photosynthetic bacteria.
e. They require CO2.
8. Which of the following argument(s) support(s) the idea of evolution?
a. All organisms have the same genetic code.
b. All organisms use ATP as their energy currency.
c. All cells have membranes with lipid bilayers.
d. Islands have a unique assemblage of species originating from adaptive radiation.
e. all of the above
9. At the equator, the sun shines directly overhead
a. in March.
b. in June.
c. in December.
d. in summer.
e. throughout the year
Explanation / Answer
5. Option D is correct . As mitochondria is present in eukaryotic cells and not prokaryotic cells. Plasma membrane is the place here which helps in respiration.
6. option D is not correct. Bacterial cells do not have endomembrane system.
7. option A is not correct. They gets carbon from inorganic substances.
8. Option E is the correct answer.
9. option a is the correct answer. In March and September this situation occurs.
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