BIOD 171 Portage Learning Exams 1,2,3,4 2024 GRADED A+ verified
True or False: A virus is classified as a microbe - Answer- True.
Viruses are not living and are not considered microorganisms, but can be classified as microbes.
True or False: The smallest biological unit of life is a molec...
True or False: A virus is classified as a microbe - Answer- True.
Viruses are not living and are not considered microorganisms, but can be classified as microbes.
True or False: The smallest biological unit of life is a molecule. - Answer- False
The smallest unit of life is a cell.
What are the four main types of macromolecules found in a cell? - Answer- Proteins, Lipids, Nucleic
Acids and Carbohydrates
How many different types of amino acids are available to make proteins? - Answer- 20
How many amino acids are classified as being essential amino acids? - Answer- 9
Where can the two major types of nucleic acids be found in the cell and what are their roles? - Answer-
DNA and RNA
They are both found in the nucleus. DNA contains and stores hereditary information and is responsible
for the characteristics of living organisms. RNA is a messenger and responsible for translating the
hereditary information in DNA and synthesizes proteins.
Complete the following RNA strand and indicate how many bonds are formed for each complementary
pair. - Answer- 5'CCAGUAGC3'
AGU is the missing part. There are two bonds between A and U and 3 bonds between G and C.
The plasma membrane (select all that are true): - Answer- Is often a bilayer comprised of lipids
,Contrains hydrophobic tails pointing inward
Carbon, hydrogen, and oxygen atoms come together to form what primary macromolecules? Give an
example. - Answer- Carbohydrates. They come together to form glucose or lactose.
True or False: The genetic material within a prokaryotic cell is contained within a membrane-enclosed
region. - Answer- False
Only eukaryotic cells contain its genetic material within a nucleus.
True or False: Archaea is noted for its ability to survive under harsh conditions. - Answer- True
Animalia, Plantae, Fungi and Protista are all classification under what type of organism? - Answer-
Eukarya
Only Eukarya contains animals, plants, fungi and protists.
Microorganisms classified ____________ obtain most of their energy by converting light energy into
chemical energy. - Answer- Plantae
A defining characteristic of fungi is the presence of chitin in the cell walls. Which of the following also
contains chitin? Select all that apply. - Answer- Mushrooms, Yeast, Molds
No Bacteria.
True or False: A defining characteristic of Protista is the inability of colonies to form tissue layers. -
Answer- True
The function of the lysosome is (select all that apply): - Answer- Waste disposal via hydrolytic enzymes
, Identify the following cellular components by matching the number with the description. - Answer- 1. F
(Nucleus)
2. B (Lysosome)
3. E (Plasma Membrane)
4. G (Golgi apparatus)
5. D (Rough ER)
Cell wall are found in which of the following (select all that apply): - Answer- Plants, Fungi, Bacteria and
Algae
Not Mammalian cells.
The function of the mitochondria is (select all that apply): - Answer- To produce energy (ATP)
True or False: All multicellular microorganisms classified as Animalia are autotrophic. - Answer- False
They are heterotrophic.
What various functions do proteins have in a cell? - Answer- Proteins can move materials in or out of a
cell. Some act as a catalysts to speed up processes. They provide structure and enable movement.
What is the plasma membrane and what is it made of? - Answer- The plasma membrane is surrounding
barrier that restricts movement of material in or out of the cell. The plasma membrane is composed of
lipids.
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 Academicaffairs. Stuvia facilitates payment to the seller.
Will I be stuck with a subscription?
No, you only buy these notes for $15.99. You're not tied to anything after your purchase.
