biology171 portage learning exam1 questions with answers 100 correctverified and verified graded a
Written for
BIOLOGY171
All documents for this subject (2)
Seller
Follow
Expertsolutions
Reviews received
Content preview
BIOLOGY171 Portage Learning
Exam(1) Questions With Answers
100% correct/verified And Verified
GRADED A+
True or False: A virus is considered a microorganism.
False. Viruses are not living and as such are not considered microorganisms. Viruses can,
however, be classified as microbes, a more general term that includes microorganisms and
viruses.
2. What is the smallest biological unit of life?
A cell.
3. At a generalized level, all cells are comprised of what?
Macromolecules*
*A student may also answer: Proteins, Lipids, Nucleic acids and Polysaccharides but they
must answer with all four to be fully correct.
How many different types of amino acids are available from which to make
proteins?
20
2. Define an essential amino acid.
An essential amino acid cannot be produced by the human body and as such must be take in
from the environment through alternative sources (i.e) food.
Exam Page 3
1. What are the two major types of nucleic acids and their roles?
DNA (deoxyribonucleic acid): Contains the genetic material as well as heredity characteristics
found in living organisms. RNA (ribonucleic acid): its role is for decoding the sequence of
heredity information found in DNA
BIOLOGY171 Portage Learning
Exam(1) Questions With Answers
100% correct/verified And Verified
GRADED A+
, BIOLOGY171 Portage Learning
Exam(1) Questions With Answers
100% correct/verified And Verified
GRADED A+
Answer Key
1. What are the two major types of nucleic acids and their roles?
There are two major types of nucleic acids: DNA (deoxyribonucleic acid) and RNA
(ribonucleic acid). Nucleic acids are chemical molecules that carry genetic information
BIOLOGY171 Portage Learning
Exam(1) Questions With Answers
100% correct/verified And Verified
GRADED A+
, BIOLOGY171 Portage Learning
Exam(1) Questions With Answers
100% correct/verified And Verified
GRADED A+
the cell. DNA contains a vast amount of hereditary information and is responsible for the
inheritable characteristics of living organisms. RNA is responsible for deciphering the
hereditary information in DNA and using it to synthesize proteins.
Exam Page 4
Answer Key
1. Complete the following RNA strand and indicate how many bonds
are formed for each complementary pair:
3’ GGUCAUCG 5’
5’ CC AGC 3’
3’ GGUCAUCG 5’
5’ CCAGUAGC 3’
There are 2 bonds formed between A and U, and 3 bonds between G and C.
Exam Page 5
Answer Key
The plasma membrane (select all that are true):
Only restricts movement of materials into the cell
Is often a bilayer comprised of lipids
Cannot prevent essential nutrients from escaping
Contains hydrophobic tails pointing inward
B and D
2. Carbon, Hydrogen and Oxygen atoms come together to form what primary
macromolecule? Give an example.
Polysaccharides. Glucose, sucrose and cellulose are all acceptable answers.
BIOLOGY171 Portage Learning
Exam(1) Questions With Answers
100% correct/verified And Verified
GRADED A+
, BIOLOGY171 Portage Learning
Exam(1) Questions With Answers
100% correct/verified And Verified
GRADED A+
Exam Page 6
Answer Key
1. True of False: Eukaryotic cells do not have a nucleus
BIOLOGY171 Portage Learning
Exam(1) Questions With Answers
100% correct/verified And Verified
GRADED A+
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 Expertsolutions. Stuvia facilitates payment to the seller.
Will I be stuck with a subscription?
No, you only buy these notes for $24.99. You're not tied to anything after your purchase.
