Exam (elaborations)
BIO 101 Lab Exam 1 Study Guide fully solved already passed
- Course
- Bly 101
- Institution
- University Of South Alabama
BIO 101 Lab Exam 1 Study Guide fully solved already passed
[Show more]
Content preview
BIO 101 Lab Exam 1 Study GuideWhat is the function of nucleic acids? - correct answer ✔✔Encode and transmit genetic information
(DNA and RNA)
What is the function of Lipids? - correct answer ✔✔Make up cell membrane and store energy
What test indicates the presence of lipids? - correct answer ✔✔The Grease Spot Test
If an unknown solution left a translucent spot when dry does this substance contain lipids or not? -
correct answer ✔✔Contains lipids
Why are lipid substances hard to wash off? - correct answer ✔✔They contain hydrophobic molecules
What is the function of proteins? (List three) - correct answer ✔✔Catalyze chemical reactions, transmit
signals, and provide structural support
What test indicates the presence of proteins within a substance? - correct answer ✔✔Biuret test:
Changes color
If you are testing to see if an unknown liquid contains protein and the substance turns violet, does it
have proteins? - correct answer ✔✔Yes, there is a presence of polypeptides
What do our bodies constantly crave, which our bodies are highly made up of? - correct answer
✔✔Amino acids
What flavor does protein have? - correct answer ✔✔Umami or savory
What is the function of carbohydrates? - correct answer ✔✔Provide principal source of energy
, What test(s) indicate the presence of sugar and or starch? - correct answer ✔✔Benedict's reaction and
Iodine (respectivly)
What does Benedict's reaction do? - correct answer ✔✔Turns colors indicating the amount of sugars
present?
If you are using benedict's reaction test to determine if an unknown solution has a small or large amount
of sugars, and the solution turns green does it have a small or large amount? - correct answer ✔✔Small
amount of sugars
If you are using benedict's reaction test to determine if an unknown solution has a small or large amount
of sugars, and the solution turns bright red does it have a small or large amount? - correct answer
✔✔Large amount of sugars
If you are using benedict's reaction test to determine if an unknown solution has a small or large amount
of sugars, and the solution turns yellow-orange does it have a small or large amount? - correct answer
✔✔Intermediate amount of sugars present in solution
Iodine indicates presence of ___________? - correct answer ✔✔Starch
If you are testing if food has starch or not using the iodine test and the food turns from a pale yellow to a
blue-black shade in iodine presence, does this food have starch or not? - correct answer ✔✔This food
has starch
The _______________________ interior of the cell membrane prevents the simple process of? - correct
answer ✔✔Hydrophobic, diffusion
Define the process of Osmosis? - correct answer ✔✔The movement of H2O across a membrane driven
by a concentration gradient
Water always flows to the ___________________ concentration? - correct answer ✔✔Hypertonic
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 BravelRadon. Stuvia facilitates payment to the seller.
Will I be stuck with a subscription?
No, you only buy these notes for $17.99. You're not tied to anything after your purchase.
Can Stuvia be trusted?
4.6 stars on Google & Trustpilot (+1000 reviews)
75619 documents were sold in the last 30 days
Founded in 2010, the go-to place to buy study notes for 14 years now