BIOD 171 EXAM 1 QUESTIONS AND
ANSWERS 100% COMPLETE6
T/F a virus is classified as a microbe - ANSWERS true
T/F the smallest biological unit of life is the molecule - ANSWERS false (cell)
T/F a defining characteristic of Protista is the inability of colonies to form tissue layers -
ANSWERS true
T/F prokaryotic cells can be subdivided into bacteria and archaea - ANSWERS true
T/F a virus is considered a mciroorganism - ANSWERS false
T/F: the genetic material within a prokaryotic cell is contained within a membrane enclosed
region - ANSWERS false
T/F eukaryotic cells do not have a nucleus - ANSWERS false
T/F : archaea is noted for its ability to survive under harsh conditions - ANSWERS true
T/F all multicellular microorganisms are classified as animalia are heterotrophic - ANSWERS true
T/F all multicellular microorganisms are classified as animalia are autotrophic - ANSWERS false
, T/F archaea, a eukaryotic class of microorganisms is capable of surviving harsh environments -
ANSWERS false
T/F: Protista retain a unicellular classification, as they are unable to form tissue layers. -
ANSWERS true
what is the smallest biological unit of life - ANSWERS a cell
what are the four main types of macromolecules found in cells - ANSWERS proteins, lipids,
nucleic acids, carbohydrates
how many different types of amino acids are available from which to make proteins - ANSWERS
20
proteins are formed from various combinations of ______ of which there are ______ known
forms - ANSWERS amino acids; 20
how many amino acids are classified are being essential amino acids - ANSWERS 9
the plasma membrane (select all):
A. restricts movement of materials in and out of the cell
B. is often a triple layer comprised of lipids
C. prevents essential nutrients from escaping
D. contains hydrophobic tails pointing outwards - ANSWERS A. restricts movement of materials
in and out of the cell
C. prevents essential nutrients from escaping
how many carbon atoms are present in glucose
ANSWERS 100% COMPLETE6
T/F a virus is classified as a microbe - ANSWERS true
T/F the smallest biological unit of life is the molecule - ANSWERS false (cell)
T/F a defining characteristic of Protista is the inability of colonies to form tissue layers -
ANSWERS true
T/F prokaryotic cells can be subdivided into bacteria and archaea - ANSWERS true
T/F a virus is considered a mciroorganism - ANSWERS false
T/F: the genetic material within a prokaryotic cell is contained within a membrane enclosed
region - ANSWERS false
T/F eukaryotic cells do not have a nucleus - ANSWERS false
T/F : archaea is noted for its ability to survive under harsh conditions - ANSWERS true
T/F all multicellular microorganisms are classified as animalia are heterotrophic - ANSWERS true
T/F all multicellular microorganisms are classified as animalia are autotrophic - ANSWERS false
, T/F archaea, a eukaryotic class of microorganisms is capable of surviving harsh environments -
ANSWERS false
T/F: Protista retain a unicellular classification, as they are unable to form tissue layers. -
ANSWERS true
what is the smallest biological unit of life - ANSWERS a cell
what are the four main types of macromolecules found in cells - ANSWERS proteins, lipids,
nucleic acids, carbohydrates
how many different types of amino acids are available from which to make proteins - ANSWERS
20
proteins are formed from various combinations of ______ of which there are ______ known
forms - ANSWERS amino acids; 20
how many amino acids are classified are being essential amino acids - ANSWERS 9
the plasma membrane (select all):
A. restricts movement of materials in and out of the cell
B. is often a triple layer comprised of lipids
C. prevents essential nutrients from escaping
D. contains hydrophobic tails pointing outwards - ANSWERS A. restricts movement of materials
in and out of the cell
C. prevents essential nutrients from escaping
how many carbon atoms are present in glucose
