UNLV Biol 189 Exam 1 Questions With Complete Solutions
___ is the immediate source of energy that powers most celluar
work Correct Answers ATP
____ is the most important element to living things because it
can form many different kinds of bonds and form essential
compounds. Correct Answers Carbon
____ takes place outside the nucleus Correct Answers
Translation
_____ applies to every chemical reaction in the universe Correct
Answers 1st and 2nd law of thermodynamics
-Energy Shells- # of valence e-
Most inner Shell:
2nd Shell:
3rd Shell: Correct Answers 2
8
8
"The good thing about science is that..." Correct Answers "...it's
true whether or not you believe in it."- Neil Degrasse Tyson
1st cell appeared Correct Answers ~3.5 billion years ago
2 purine bases Correct Answers Adenine & Guanine
,2nd law of thermodynamics Correct Answers Every energy
transfer or transformation increases the entropy of the universe.
3 components of cytoskeletons Correct Answers 1.
Microfilaments
2. Intermediate filaments
3. Microtubules
3 domain tree of life Correct Answers Bacteria, Archea &
Eukarya.
3 pyrimidine bases Correct Answers Thymine, Cytosine, and
Uracil.
4 components of plasma membrane Correct Answers
phospholipid bilayer, proteins, cholesterol, carbohydrates
4 regions of the mitochondria Correct Answers 1. Smooth outer
membrane (porous)
2. Intermembrane space
3. Matrix = Fluid filled inside that contains mitoDNA,
ribosomes & enzymes for pyruvate oxidations & citric acid
cycle.
4. Inner membrane with folds (cristae) = Electron transport
chain happens.
,5 characteristics of life Correct Answers Cells,obtain and use
energy,reproduction,adapt,evolve
5 types of chemical bonds Correct Answers 1. Covalent Bonds
2. Nonpolar Covalent Bonds
3. Polar Covalent Bonds
4. Ionic Bods
5. Hydrogen Bonds
6 major Elements that make up most living organisms Correct
Answers -Carbon
-Hydrogen
-Oxygen
-Nitogen
-Phosphorous
-Sulfur
A falsifiable hypothesis is one that Correct Answers can be
proven incorrect
acids Correct Answers donate H+ (protons)
, Activators and inhibitors are ____ Correct Answers not
coenzymes or cofactors
ADP can be converted back to ATP by Correct Answers
Condensation
All ___ are able to reproduce Correct Answers Living things
All ____ cells have mitochondria Correct Answers Eukaryotic
All cells must acquire ____ Correct Answers carbon
all cells share common Correct Answers structures & functions:
-Plasma membrane
-Phospholipid bilayer (barrier)
-Cytosol/Cytoplasm
-Jelly-like fluid that contains proteins & ribosomes
-Chromosomes
-Organizing unit of DNA; DNA & proteins
-Ribosomes
-RNA/Protein structures (required for translation)
___ is the immediate source of energy that powers most celluar
work Correct Answers ATP
____ is the most important element to living things because it
can form many different kinds of bonds and form essential
compounds. Correct Answers Carbon
____ takes place outside the nucleus Correct Answers
Translation
_____ applies to every chemical reaction in the universe Correct
Answers 1st and 2nd law of thermodynamics
-Energy Shells- # of valence e-
Most inner Shell:
2nd Shell:
3rd Shell: Correct Answers 2
8
8
"The good thing about science is that..." Correct Answers "...it's
true whether or not you believe in it."- Neil Degrasse Tyson
1st cell appeared Correct Answers ~3.5 billion years ago
2 purine bases Correct Answers Adenine & Guanine
,2nd law of thermodynamics Correct Answers Every energy
transfer or transformation increases the entropy of the universe.
3 components of cytoskeletons Correct Answers 1.
Microfilaments
2. Intermediate filaments
3. Microtubules
3 domain tree of life Correct Answers Bacteria, Archea &
Eukarya.
3 pyrimidine bases Correct Answers Thymine, Cytosine, and
Uracil.
4 components of plasma membrane Correct Answers
phospholipid bilayer, proteins, cholesterol, carbohydrates
4 regions of the mitochondria Correct Answers 1. Smooth outer
membrane (porous)
2. Intermembrane space
3. Matrix = Fluid filled inside that contains mitoDNA,
ribosomes & enzymes for pyruvate oxidations & citric acid
cycle.
4. Inner membrane with folds (cristae) = Electron transport
chain happens.
,5 characteristics of life Correct Answers Cells,obtain and use
energy,reproduction,adapt,evolve
5 types of chemical bonds Correct Answers 1. Covalent Bonds
2. Nonpolar Covalent Bonds
3. Polar Covalent Bonds
4. Ionic Bods
5. Hydrogen Bonds
6 major Elements that make up most living organisms Correct
Answers -Carbon
-Hydrogen
-Oxygen
-Nitogen
-Phosphorous
-Sulfur
A falsifiable hypothesis is one that Correct Answers can be
proven incorrect
acids Correct Answers donate H+ (protons)
, Activators and inhibitors are ____ Correct Answers not
coenzymes or cofactors
ADP can be converted back to ATP by Correct Answers
Condensation
All ___ are able to reproduce Correct Answers Living things
All ____ cells have mitochondria Correct Answers Eukaryotic
All cells must acquire ____ Correct Answers carbon
all cells share common Correct Answers structures & functions:
-Plasma membrane
-Phospholipid bilayer (barrier)
-Cytosol/Cytoplasm
-Jelly-like fluid that contains proteins & ribosomes
-Chromosomes
-Organizing unit of DNA; DNA & proteins
-Ribosomes
-RNA/Protein structures (required for translation)
