Portage learning Microbiology module 1
Exam 2026 Questions and Answers
What is a cell? - Correct answer-A cell is the smallest most basic unit of biological
life
What are the 4 main macromolecules of cells? - Correct answer-Proteins
Lipids
Polysaccharides
Nucleic acids
What are the most abundant macromolecules? - Correct answer-Proteins, they are
made up of subunits (ammino acids)
What is the role of proteins that are behaving as "enzymes" - Correct answer-
Enzymes catalyze or speed up bio-chemical processes.
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,How many amino acids are there? And how many are essential? And what does
"essential" mean? - Correct answer-20 total
9 essential
Essential means that your body cannot manufacture them and need to be acquired
from diet.
What is the largest known protein and how many amino acids does it contain? -
Correct answer-Titin
It is made from 33,000 aminos
What are nucleic acids? And which one can leave the nucleus? - Correct answer-
DNA and RNA
What is the structure of DNA? - Correct answer-DNA is a double helix that is anti
parallel with a 53 35 prime configuration.
What are the nitrogenous bases? - Correct answer-Adenine, Thymine, Guanine,
Cytosine
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, Of the nitrogenous bases, which are paid together? - Correct answer-Adenine and
Thymine
Guanine and Cytocine
How many hydrogen bonds are formed between Adenine and Thymine ? - Correct
answer-2
How many hydrogen bonds are formed between Guanine and cytocine? - Correct
answer-3
What are pyrimidines? - Correct answer-cytosine, thymine, uracil
What are purines? - Correct answer-Adenine (A) and Guanine (G)
What are the differences between RNA and DNA? - Correct answer-RNA is a
single strand, contains uracil instead of thymine, and ribose instead of deoxyribose
What is the primary role of lipids in cells? - Correct answer-To form the foundation
of the plasma membrane
What is the purpose of the plasma membrane in a cell? - Correct answer-This
membrane helps to keep the cell in homeostasis by restricting the movement of
nutrients ect.
©COPYRIGHT 2025, ALL RIGHTS RESERVED 3
Exam 2026 Questions and Answers
What is a cell? - Correct answer-A cell is the smallest most basic unit of biological
life
What are the 4 main macromolecules of cells? - Correct answer-Proteins
Lipids
Polysaccharides
Nucleic acids
What are the most abundant macromolecules? - Correct answer-Proteins, they are
made up of subunits (ammino acids)
What is the role of proteins that are behaving as "enzymes" - Correct answer-
Enzymes catalyze or speed up bio-chemical processes.
©COPYRIGHT 2025, ALL RIGHTS RESERVED 1
,How many amino acids are there? And how many are essential? And what does
"essential" mean? - Correct answer-20 total
9 essential
Essential means that your body cannot manufacture them and need to be acquired
from diet.
What is the largest known protein and how many amino acids does it contain? -
Correct answer-Titin
It is made from 33,000 aminos
What are nucleic acids? And which one can leave the nucleus? - Correct answer-
DNA and RNA
What is the structure of DNA? - Correct answer-DNA is a double helix that is anti
parallel with a 53 35 prime configuration.
What are the nitrogenous bases? - Correct answer-Adenine, Thymine, Guanine,
Cytosine
©COPYRIGHT 2025, ALL RIGHTS RESERVED 2
, Of the nitrogenous bases, which are paid together? - Correct answer-Adenine and
Thymine
Guanine and Cytocine
How many hydrogen bonds are formed between Adenine and Thymine ? - Correct
answer-2
How many hydrogen bonds are formed between Guanine and cytocine? - Correct
answer-3
What are pyrimidines? - Correct answer-cytosine, thymine, uracil
What are purines? - Correct answer-Adenine (A) and Guanine (G)
What are the differences between RNA and DNA? - Correct answer-RNA is a
single strand, contains uracil instead of thymine, and ribose instead of deoxyribose
What is the primary role of lipids in cells? - Correct answer-To form the foundation
of the plasma membrane
What is the purpose of the plasma membrane in a cell? - Correct answer-This
membrane helps to keep the cell in homeostasis by restricting the movement of
nutrients ect.
©COPYRIGHT 2025, ALL RIGHTS RESERVED 3
