1
Biol411 - 1st test Questions with Answers (100% Correct
Answers)
when we say a cell is the fundamental unit of life, we mean that...
Answer: a single cell can carry out all life's processes, life doesnt exsist
in the absence of cells, the smallest living entity that can be considered
living is a cell, all living things are made up of one or more cells.
All of these choices are correct
Nucleic Acids are important information storage molecules present in
every cell. Which of the processes is carried out by a cell when it
accesses the information in the DNA of cells? Answer: transcription -
DNA is copied into RNA
translation - RNA is used to produce proteins
At some point in their life cycle, all cells have a _____, whereas not all
cells have a(n) _____. Answer: plasma membrane, nuclear membrane
In which of the domains do the cells store their genetic information in a
nucleus? Answer: Eukarya
© 2025 All rights reserved
, 2
What kind of bond binds hydrogen to oxygen? Answer: polar covalent
the hydrogen atoms in a water molecule have a _____ charge, while the
oxygen atom has a _____ charge. Answer: partial positive, partial
negative
In an ice crystal, a water molecule typically forms hydrogen bonds with
how many other water molecules? Answer: 4
if present in a molecule, which atoms is least likley to participate in
hydrogen bonds with water? Answer: carbon
what is nessecary for a hydrogen atom to partake in a hydrogen bond?
Answer: it must be bonded to a more electronegative atom
why does ice float? Answer: the lattice of ice forces a less dense
arrangement of molecules
hydrogen bonds between peptide backbone Answer: secondary
hydrogen bonds between peptide backbone components on one
polypeptide and r groups on another polypeptide Answer: quaternary
© 2025 All rights reserved
Biol411 - 1st test Questions with Answers (100% Correct
Answers)
when we say a cell is the fundamental unit of life, we mean that...
Answer: a single cell can carry out all life's processes, life doesnt exsist
in the absence of cells, the smallest living entity that can be considered
living is a cell, all living things are made up of one or more cells.
All of these choices are correct
Nucleic Acids are important information storage molecules present in
every cell. Which of the processes is carried out by a cell when it
accesses the information in the DNA of cells? Answer: transcription -
DNA is copied into RNA
translation - RNA is used to produce proteins
At some point in their life cycle, all cells have a _____, whereas not all
cells have a(n) _____. Answer: plasma membrane, nuclear membrane
In which of the domains do the cells store their genetic information in a
nucleus? Answer: Eukarya
© 2025 All rights reserved
, 2
What kind of bond binds hydrogen to oxygen? Answer: polar covalent
the hydrogen atoms in a water molecule have a _____ charge, while the
oxygen atom has a _____ charge. Answer: partial positive, partial
negative
In an ice crystal, a water molecule typically forms hydrogen bonds with
how many other water molecules? Answer: 4
if present in a molecule, which atoms is least likley to participate in
hydrogen bonds with water? Answer: carbon
what is nessecary for a hydrogen atom to partake in a hydrogen bond?
Answer: it must be bonded to a more electronegative atom
why does ice float? Answer: the lattice of ice forces a less dense
arrangement of molecules
hydrogen bonds between peptide backbone Answer: secondary
hydrogen bonds between peptide backbone components on one
polypeptide and r groups on another polypeptide Answer: quaternary
© 2025 All rights reserved
