BIO105 Exam 1 Practice
Which is not one of the four main categories of bio-molecules?
Proteins
Lipids
DNA
Carbohydrates
Nucleic Acids
What is the basic unit of structure and fun
Atom
Cell
Organelle
Tissue
If the most common form of Carbon has 6 protons, 6 neutrons, and 6 electrons, which element would be an isotope of Carbon?
An atom with 6 protons, 8 neutrons, and 6 electrons
An atom with 7 protons, 6 neutrons, and 6 electrons
An atom with 6 protons, 6 neutrons, and 9 electrons
The alpha helix and Beta helix represent which level of protein structure
Primary Structure
Secondary Structure
Tertiary Structure
Quarternary Structure
A hydrophilic molecule will
Repel Water molecules
Attract Water molecules
A monosaccharide is to a carbohydrate as
A nucleotide is to a protein
An amino acid is to a carbohydrate
A glucose is to a nucleic acid
An amino acid is to protein
What polysaccharide do plants use to store energy?
Starch
Chitin
Glucose
What domain are prokaryotic cells found
Bacteria
Archaea
Eukarya
Both A and B
Both B and C
An elements atomic mass is determined by
The number of electrons
The number of protons
The number of neutrons
Both A and B
Both B and C
What type of reaction is water used to break covalent bonds between molecules?
Dehydration synthesis
Hydrolysis
Nuclear Fission
According to the octet rule, an atom is stable with how many electrons in the outer shell?
1
2
4
8
Multiple water molecules are held together by what type of bond?
Covalent
Ionic
Hydrogen
Which term doesn't relate to the others
Nucleic Acid
Nucleotide
Amino Acid
DNA
What is not a function of proteins?
Metabolism
Support
Long term storage
Transport
A ___ bond shares electrons between two elements
Ionic
Covalent
Hydrogen
What is the main function of the smooth endoplasmic reticulum?
Lipid synthesis
Protein synthesis
Transport
Ribosome synthesis
Where is most of a Eukaryotic cell's DNA contained?
Rough ER
Mitochondria
Nucleus
Golgi Apparatus
A prokaryotic cell has all of the following except
Ribosomes
Cell Wall
Mitochondria
DNA
What functional group is N-H-H
Hydroxyl
Carbonyl
Menthil
Amino
The organelle responsible for protein modification and final packaging is
Golgi apparatus
Rough ER
Mitochondria
Cell Wall
What so eukaryotes have that prokaryotes don't?
Cell Membrane
Cytoplasm
Membrane Bound Organelles
What is the primary component in a cellular membrane?
Ribosomes
Phospholipids
Transport proteins
DNA consists of the following except
Uracil
Guanine
Adenine
Cytosine
What is the complimentary strand of DNA to GCGTATTG
CGATAGGT
TATCTAAG
CGCATAAC
CGTUTAAC
What is the link between amino acids called?
Ester bond
Phosphodiester bond
Peptide bond
Hydrogen
What is the smallest unit of an element?
Molecule
Atom
Macromolecule
Circular DNA is found in
Plants
Animals
Bacteria
Humans
What is it called when a protein breaks down and loses its function?
Phosphorylation
Dephosphorylation
Desaturation
Denature
What is the structure of DNA?
Helix
Double Helix
Triple Helix
If a fat is said to be saturated, what is true of it?
It has double bonds
It has no double bonds
Animals have all of the following except
Mitochondria
Vacuole
Ribosomes
Cell membrane
All men are mortal. Joe is a man. Therefor Joe is mortal.
Inductive reasoning
Deductive reasoning
Neither
Both A and B
My math teacher has blue eyes. My last math teacher had blue eyes. All math teachers must have blue eyes.
Inductive reasoning
Deductive reasoning
Neither
Both A and B
Neutral atoms have the same number of electrons and protons
True
False
Which of these is not a lipid?
Phospholipid
Cholesterol
Estrogen
RNA
What determines the types of chemical reactions that an atom participates in?
The number of protons in the nucleus
The number of electrons in the nucleus
The number of electrons in the innermost shell
The number of electrons in the outermost shell
What is the sequence of biological organization from simplest to most complex?
Cell, organ, tissue, organism
Cell tissue, organ, organism
Tissue, cell, organ, organism
Organism, organ, tissue, cell
Which is not one of the characteristics of life?
Adaptation
Organization
Mutations
Maintain Homeostasis
Which is not one of the four kingdoms of Eukarya?
Protists
Plants
Archaea
Animals
What substance cannot be broken into substances with different properties (on periodic table)
Proton
Atom
Element
Molecule
The cell membrane is
A phospholipid bi layer
Semi permeable
A phospholipid layer
Fully permeable
A and B
A and D
What is a monomer of a carbohydrate?
Glucose
Fructose
Monosaccharide
Amino Acid
What organelle is responsible for protein modification?
Rough ER
Smooth ER
Golgi Apparatus
Nucleolus
Biology is the study of
Living things
Nonliving things
Both A and B
Which of these are NOT a component of a nucleotide
5-Carbon sugar
Nitrogenous base
Phosphate group
Carbonal group
What makes some covalent bonds polar?
Difference in stereoisomers
Differences in electronegativity
Differences in neutrons
Where is the site of protein synthesis
Rough ER
Smooth ER
Ribosomes
Lysosomes
What is the main function of the rough endoplasmic reticulum?
Protein synthesis/modification
Transport materials
Break down macromolecules
Storage
DNA is found in
The mitochondria
The nucleus
The chloroplasts
A and B
All of the above
Prokaryotic cells differ from eukaryotic cells because prokaryotic cells contain a
Nucleus
Nucleotide
Nucleoid
Nuclear envelope
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