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BIOD 171 Portage Learning Final Exam Review with complete verified solutions already graded A+.
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BIOD 171 Portage LearningFinal Exam Review with
complete verified solutions
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True/False. A virus is considered a microorganism. - answer 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.
What is the smallest biological unit of life? - answer A cell
What are the four main types of macromolecules found in cells? - answer
Proteins, Lipids, Nucleic Acids, Carbohydrates
Proteins are formed from various combinations of - answer Amino acids
There are how many known forms of amino acids - answer twenty
How many amino acids are classified as being essential amino acids? -
answer Nine
Where can the two major types of nucleic acids be found in the cell? -
answer DNA, RNA. Found in the nucleus.
What is the role of RNA? - answer RNA , found in the nucleus is capable
of leaving the nucleus. RNA is repsponsible for deciphering the hereditary
information in DNA and uses it to synthesize proteins.
,What is the role of DNA? - answer DNA, found in the nucleus contains
vast amount of hereditary inforamtion, responible for inhereitable
characteristic os living organisms.
Complete the following RNA strand, and indicate how many bonds are
formed for each complementary pair:
3' GGUCAUCG 5'5' CC AGC 3' - answer 3' GGUCAUCG 5'5' CCAGUAGC
3'There are 2 bonds formed between A and U, and 3 bonds between G and
C.
The plasma membrane - answer Restricts movement of materials in and
out of the cell & Prevents essential nutrients from escaping
How many carbon atoms are present in glucose? - answer 6
True of 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: Prokaryotic cells can be subdivided into Bacteria and
Archaea. - answer True
True or False: Archaea is noted for its ability to survive under harsh
conditions.
Correct! - answer True
Archaea can often be found in harsh conditions such as high salt levels,
high acid conditions, high temperatures and even oxygen-poor conditions.
Which of the following microorganisms are considered to be Eukarya?
Select all that apply. - answer Animalia, Plantae, Fungi, Protista
Microorganisms classified as Plantae obtain most of their energy by
converting [answer1] energy into [answer2] energy. - answer 1. Light
(sunlight)
, 2. chemical (sugars)
Which of the following are considered Protista? Select all that apply. -
answer Algae, Amoeba
The function of the ribosome is - answer Protein synthesis
True or False: Protista retain a unicellular classification, as they are unable
to form tissue layers. - answer True
Where are ribosomes located? - answer cytoplasm of prokaryotic cells
and in the ER of eukaryotic cells.
The combination of the cell membrane and the outer membrane is referred
to as the - answer Cell envelope
The function of the mitochondria is - answer To produce energy (ATP)
True or False. All multicellular microorganisms classified as Animalia are
autotropic. - answer False
True or False: Metabolism is a controlled set of biochemical reactions that
occur in living organisms in order to maintain life. - answer True
True or False: Enzymes slow down chemical reactions to conserve energy. -
answer False
What is a cofactor? - answer A cofactor is a small chemical component
that assists an enzyme during the catalysis reactions. A cofactor is usually
metal ions.
Define catabolism - answer Catabolism is the process of breaking down
larger molecules into useful energy sources.
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