Exam (elaborations)

MCB 100 FULL Exam 1 (UIUC) Questions and Answers Graded A+

12 views 0 purchase

Course
MCB 100 FULL

Institution
MCB 100 FULL

MCB 100 FULL Exam 1 (UIUC) Questions and Answers Graded A+ Question: What is the primary difference between prokaryotic and eukaryotic cells? Answer: Prokaryotic cells lack a true nucleus and membrane-bound organelles, while eukaryotic cells have a defined nucleus and organelles surrounded by ...

[Show more]

Preview 4 out of 88 pages

View example

Uploaded on August 15, 2024
Number of pages 88
Written in 2024/2025
Type Exam (elaborations)
Contains Questions & answers

mcb 100 full exam 1 uiuc questions and answers g

Institution MCB 100 FULL
Course MCB 100 FULL

StellarScores Member since 1 year 1139 documents sold

133

$11.99

Added

Add to cart Add to wishlist

100% satisfaction guarantee
Immediately available after payment
Both online and in PDF
No strings attached

MCB 100 FULL Exam 1 (UIUC) Questions
and Answers Graded A+
Question: What is the primary difference between prokaryotic and eukaryotic cells?

Answer: ✔✔ Prokaryotic cells lack a true nucleus and membrane-bound organelles, while

eukaryotic cells have a defined nucleus and organelles surrounded by membranes.

Question: What is the role of ribosomes in bacterial cells?

Answer: ✔✔ Ribosomes are responsible for protein synthesis, translating mRNA into

polypeptide chains that fold into functional proteins.

Question: Which component of a bacterial cell wall is primarily responsible for its rigidity?

Answer: ✔✔ Peptidoglycan provides rigidity to the bacterial cell wall, helping the cell maintain

its shape and protecting it from osmotic pressure.

Question: What is the function of bacterial plasmids?

Answer: ✔✔ Plasmids are small, circular DNA molecules in bacteria that often carry genes for

antibiotic resistance and can be transferred between bacteria through conjugation.

1

,Question: What is the significance of Gram staining in microbiology?

Answer: ✔✔ Gram staining is used to differentiate bacteria into two major groups: Gram-

positive and Gram-negative, based on the characteristics of their cell walls. This distinction helps

guide treatment decisions in clinical settings.

Question: What is binary fission?

Answer: ✔✔ Binary fission is the process by which bacterial cells reproduce, where a single cell

divides into two identical daughter cells.

Question: How does the electron transport chain function in bacterial respiration?

Answer: ✔✔ The electron transport chain is a series of protein complexes located in the cell

membrane that transfer electrons from donors to acceptors, generating a proton gradient that

drives ATP synthesis.

Question: What are endospores, and why are they important?

Answer: ✔✔ Endospores are highly resistant, dormant forms of bacteria that can survive extreme

conditions such as heat, radiation, and desiccation. They allow the bacteria to persist until

favorable conditions return.

2

,Question: What is the role of pili in bacterial cells?

Answer: ✔✔ Pili are hair-like appendages on the surface of bacteria that facilitate attachment to

surfaces and in some cases, play a role in the transfer of genetic material between cells during

conjugation.

Question: How do antibiotics like penicillin work on bacteria?

Answer: ✔✔ Penicillin and related antibiotics inhibit the synthesis of peptidoglycan, which

weakens the bacterial cell wall and leads to cell lysis, effectively killing the bacteria.

key distinction of microorganisms from other organisms ✔✔microorganisms do not form

differentiated tissues

1 mm = ? microns ✔✔1000

1 m = ? mm ✔✔1000

1 micron = ? nm ✔✔1000

3

, "little things" small to large ✔✔atoms ==> small molecules (amino acids, nucleotides, sugars)

==> biological macromolecules (proteins, nucleic acids, polysaccharides, lipids) ==> subcellular

structures (viruses, ribosomes, microtubules) ==> Rickettsia, Chlamydia, Mycoplasma, and

Nanobacteria ==> most bacteria and archaea ==> yeasts and flagellated protozoa ==> typical

plant and animal cells, amoebae ==> ciliated protozoa ==> zooplankton (small multicellular

animals)

subcellular aggregates of molecules ✔✔viruses, viroids, prions

traits of all living cells ✔✔1. Able to grow and reproduce (can convert nonliving nutrients into

living cytoplasm)

2. Genetic material is DNA

3. Metabolism

4. Able to make or acquire ATP

5. Able to synthesize proteins

6. Bound by an active cell membrane

function of ribosomes ✔✔read mRNA and synthesize proteins

4

The benefits of buying summaries with Stuvia:

Guaranteed quality through customer reviews

Stuvia customers have reviewed more than 700,000 summaries. This how you know that you are buying the best documents.

Quick and easy check-out

You can quickly pay through credit card or Stuvia-credit for the summaries. There is no membership needed.

Focus on what matters

Your fellow students write the study notes themselves, which is why the documents are always reliable and up-to-date. This ensures you quickly get to the core!

Frequently asked questions

What do I get when I buy this document?

You get a PDF, available immediately after your purchase. The purchased document is accessible anytime, anywhere and indefinitely through your profile.

Satisfaction guarantee: how does it work?

Our satisfaction guarantee ensures that you always find a study document that suits you well. You fill out a form, and our customer service team takes care of the rest.

Who am I buying these notes from?

Stuvia is a marketplace, so you are not buying this document from us, but from seller StellarScores. Stuvia facilitates payment to the seller.

Will I be stuck with a subscription?

No, you only buy these notes for $11.99. You're not tied to anything after your purchase.

Can Stuvia be trusted?

4.6 stars on Google & Trustpilot (+1000 reviews)

62555 documents were sold in the last 30 days

Founded in 2010, the go-to place to buy study notes for 14 years now

Start selling

Popular Universities in the United States

Popular books

Find notes and summaries for these qualifications

Seller