Exam (elaborations)
College Biology 1 Final Exam 2022
- Course
- Institution
College Biology 1 Final Exam 2022
[Show more]
Seller
Follow
Welch1
Reviews received
Content preview
College Biology 1 Final Exam2022
General differences between eukaryotic and prokaryotic cells are? ANS:- Eukaryotic
cells have membrane bound organelles, prokaryotic cells generally do not.
Beta cells are cells in the human pancreas whose primary function is to produce and
secrete the protein hormone insulin. A beta cell would contain? ANS:- An active
Golgi apparatus.
What is a reasonable explanation for why unsaturated fatty acids keep biological
membranes fluid at lower temperatures? ANS:- Unsaturated fatty acids have kinks in
their tails, preventing tight packing of adjacent lipids.
What is not found in chloroplasts? ANS:- Thylakoids, DNA, Ribosomes and an
electron transport proteins.
What is found in plant cells, but not in animal cells? ANS:- Central vacuole.
In a plant cell DNA is found where? ANS:- In the nucleus, mitochondria, and
chloroplasts.
What central structures grows out to the centrosome, and provides compression
resistance for the cell? ANS:- Microtubules.
What cellular structures interact with myosin motor proteins to produce contraction in
human skeletal muscles? ANS:- Microfilaments.
What molecules would you expect to move most quickly through the plasma
membrane via passive diffusion (directly through the phospholipid bilayer)? ANS:-
Oxygen (O₂)
What structures would most likely be associated with the cell-cell junction between a
nerve cell and a muscle cell? ANS:- Gap junction.
White blood cells engulf bacteria through what process? ANS:- Phagocytosis.
What functions are not associated with membrane proteins? ANS:- Signal
transduction, Enzymatic activity, Transport, and Phosphorilation of ADP to ATP.
What is always true of a chemical reaction with a negative delta G? ANS:- The
reaction is spontaneous.
What is not true of the citric acid cycle? ANS:- 3 NADH are produced per pyruvate, 1
FADH₂is produced per pyruvate and 1 ATP is produced per pyruvate.
, What is true of Glycolysis, assuming 1 glucose as the starting carbohydrate? ANS:-
Two 3-carbon sugars are produced by this process.
What processes produce(es) ATP by substrate level phosphorylation? ANS:-
Glycolysis.
What would be expected to up-regulate (activate) phosphofructokinase activity?
ANS:- High AMP concentration.
Use the following chemical reaction for this question and the next. CH₄+ o₂---> CO₂+
H₂O
Which of the molecules acts as the reducing agent in the above reaction? ANS:- CH₄
Which of the molecules acts as the oxidizing agent in the above reaction? ANS:- O₂
What is not a direct product of the light reactions of photosynthesis? ANS:- Glucose
T/F...Placing an animal cell in a hypertonic saline solution may result in cell lysis (cell
rupture). ANS:- False.
T/F...Spontaneous processes increase the entropy of the universe. ANS:- True.
T/F...The diffusion of dye molecules when a drop of dye is dropped into a flask of
water is an endergonic process. ANS:- False.
Facilitated diffusion of molecules through protein channels is a type of active
transport. ANS:- False.
T/F...Proteins that function in the cytosol are generally made at free ribosomes.
ANS:- True.
T/F...A Glycolipid consists of a protein covalently bound to a lipid. ANS:- False.
T/F...Spontaneous reactions always proceed toward equilibrium. ANS:- True.
T/F...Hydrolyisis of ATP to ADP + P₁ os am exergonic process. ANS:- True.
T/F...Pyruvate dehydrogensase, an essential enzyme in the production of acetyl CoA
from pyruvate, requires Mg+ ions. Her, Mg+ ions acts as cofactors. ANS:- True.
T/F...Pyruvate oxidation to acetyl CoA yields 2 FADH₂ per pyruvate. ANS:- False.
Overall, cellular respiration is an anabolic process. ANS:- False.
What is the overall balanced chemical equation for photosynthesis in plants? Use
glucose as the sugar. ANS:- Energy + 6CO₂+ 6H₂O----->C₆H₁₂O₆ + 6O₂
Carbon fixation is the first step in ____. Carbon fixation is catalyzed by the
enzyme_____, which incorporates carbon from the molecule_____ into organic
molecules. The organic molecules are then (reduced or oxidized)______to produce
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 Welch1. Stuvia facilitates payment to the seller.
Will I be stuck with a subscription?
No, you only buy these notes for $7.99. You're not tied to anything after your purchase.
Can Stuvia be trusted?
4.6 stars on Google & Trustpilot (+1000 reviews)
75323 documents were sold in the last 30 days
Founded in 2010, the go-to place to buy study notes for 14 years now