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BIOD 171 Portage Learning Final Exam Review
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BIOD 171 Portage Learning Final ExamReview 2024-2025
What is the role of RNA? - ANWER RNA, present 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, present in the nucleus contains vast amount of
hereditary inforamtion, responible for inhereitable characteristic os living organisms.
Fill in the following RNA strand, and identify 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 extreme 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)
Of the following, which are Protista? Choose all that apply. - ANS Algae, Amoeba
The ribosome functions in - ANS Protein synthesis
True/False. A virus is considered to be a microorganism. - ANSWER False, Viruses are
not living and as such are not considered microorganisms. Viruses can, however, be
considered microbes, which is the more general term for microorganisms and viruses.
What is the smallest unit of life that is still considered to be a life? - ANSWER A cell
What are the four main types of macromolecules found in cells? - ANSWER Proteins,
Lipids, Nucleic Acids, Carbohydrates
The structure of proteins is made up 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.
True or False: Protista remain a single celled classification because they cannot form
tissues layers. - ANS True
Ribosomes may be found in the - ANS cytoplasm of prokaryotic cells and in the ER of
eukaryotic cells.
Cell membrane along with the outer membrane is called - ANSWER Cell envelope
Mitochondria role is to - ANSWER Generate energy (ATP)
True or False. All multicellular microorganims which belong to the kingdom Animalia are
autotropic. - ANSWER False
True or False: Metabolism is a controlled series of biochemical processes by which life
is maintained in living organisms. - 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 which assists
the enzyme during catalysis reactions. It is usually metal ions.
Define catabolism - ANSWER Catabolism is the breaking down process of larger
molecules into useful energy sources.
Which of the following metabolic processes would be occurring in order to break down
proteins into amino acids? - ANSWER Catabolism would be occurring since proteins are
composed of amino acids. Thus, the described process-proteins to amino acids-is the
breakdown, or catabolism of protein.
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