,1. Multiple Choice: Which of the following is not a
component of the cellular membrane?
a) Phospholipids
b) Cholesterol
c) Glycoproteins
d) Hemoglobin
Correct Answer: d) Hemoglobin
Rationale: Hemoglobin is a component of red blood cells,
not the cellular membrane.
2. Fill-in-the-Blank: The process by which water moves
across a semipermeable membrane is called __________.
Correct Answer: Osmosis
Rationale: Osmosis is the movement of water across a
semipermeable membrane from an area of lower solute
concentration to an area of higher solute concentration.
3. True/False: Mitochondria are the only organelles that
contain their own DNA.
Correct Answer: False
Rationale: Mitochondria and chloroplasts both contain
their own DNA.
, Correct Answers: a), b), c), d), e), f)
Rationale: All listed options are functions of membrane
proteins.
5. Multiple Choice: What is the primary function of the
nucleolus?
a) DNA replication
b) Ribosomal RNA synthesis
c) Protein sorting
d) Mitosis
Correct Answer: b) Ribosomal RNA synthesis
Rationale: The nucleolus is primarily involved in the
synthesis of ribosomal RNA.
6. Fill-in-the-Blank: Proteins that bind to specific sequences
of DNA and control the rate of transcription are called
__________.
Correct Answer: Transcription factors
Rationale: Transcription factors are proteins that bind to
specific DNA sequences to control the transcription of
genetic information from DNA to messenger RNA.
7. True/False: All enzymes increase the activation energy
needed for a chemical reaction.
Correct Answer: False
Rationale: Enzymes actually lower the activation energy
needed for a chemical reaction, thereby speeding up the
reaction.
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 EmilioOchieng. Stuvia facilitates payment to the seller.
Will I be stuck with a subscription?
No, you only buy these notes for $13.49. You're not tied to anything after your purchase.
