Transcript Midterm Review Questions

Chapter One: The Science of Biology
1. Which of the following is not a characteristic
of living things?
a. Livings things are made of cells
b. Living things respond to the environment
c. Living things move
d. Livings things have the need for energy
• c. Living things move
2. Observations: The following observations were
made about a group of rainforest species. List each
of the observations below as qualitative (a) or
quantitative (b).
1. There were 4 walking pines found in a 100 ft.2 area.
2. The sloth had black markings on its fur around its eyes.
3. Blue jeans frogs exhibit bright blue and red colors to warn
their predators they are poisonous.
1. There were 4 walking pines found in a 100 ft.2
area. B
2. The sloth had black markings on its fur
around its eyes. A
3. Blue jeans frogs exhibit bright blue and red
colors to warn their predators they are
poisonous. A
3. The three particles that make up an atom are
a. Protons, neutrons, and isotopes
b. positives, negatives, and electrons
c. Neutrons, isotopes, and electrons
d. protons, neutrons, and electrons
• d. protons, neutrons, and electrons
4. A researcher conducted an experiment to see if
increasing water consumption lessens the visible
effects of rosacea, a common skin condition. The
dependent variable in this experiment was
a.
b.
c.
d.
Rosacea
Increased water consumption
Amount of water consumed
Visible condition of the skin
• Visible condition of the skin
5. A school psychologist is interested in studying the
effectiveness of a reading improvement program. He
has randomly assigned participants to one of two
groups. The first group receives training in phonics,
while the second group is put on a waiting list and
receives no training. What is the control group?
a. the group that received the phonics training
b. The group that received no training
c. The school psychologist
d. The population
• b. The group that received no training
6. Dogs do not sweat like humans, so they release
excess heat from their bodies by panting. Panting is
considered
a.
b.
c.
d.
Lactic acid fermentation
Cellular respiration
A gene malfunction
A homeostatic mechanism
• A homeostatic mechanism
Chapter Two: The Chemistry of Life
1. A covalent bond is formed as the result of
a. Transferring electrons
b. sharing electrons
c. eliminating protons
d. sharing protons
• b. sharing electrons
2. The attraction of one water molecule to
another water molecule due to polarity is called
a.
b.
c.
d.
Adhesion
cohesion
high specific heat
wetness
• cohesion
3. Which of the following best completes the
sentence below?
Due to the polarity of water, nonpolar covalent
substances like wax:
a. do not dissolve in water and are considered insoluble
b. are volatile so they dissolve in water
c. dissolve in water and are considered soluble
d. do not melt but will not dissolve in water
• a. do not dissolve in water and are considered
insoluble
4. Proteins are polymers formed from
a.
b.
c.
d.
Cholesterol
nucleotides
amino acids
glycerol and 3 fatty acids
• amino acids
5. A monosaccharide is a
a.
b.
c.
d.
Carbohydrate
lipid
nucleic acid
protein
• Carbohydrate
7. What does the following formula represent?
a.
b.
c.
d.
Sugar
Starch
An amino acid
A fatty acid
• An amino acid
8. Which of the following carbon-based
compounds is the main source of energy for
living things?
a.
b.
c.
d.
Carbohydrates
lipid
nucleic acid
protein
• Carbohydrates
9. Which of the following is not one of the four
carbon-based polymers in examples we learned
in class?
a.
b.
c.
d.
polysaccharide
polypeptide
Amino acid
DNA
• Amino acid
10. Which phrase below best describes a
polymer?
a. Individual small units
b. Information coded in DNA
c. Large molecule made of many small molecules
d. Individual amino acids
• c. Large molecule made of many small molecules
11. What is the term used to describe the
energy needed to start a reaction?
a.
b.
c.
d.
Activation energy
adhesion energy
cohesion energy
chemical energy
• Activation energy
12. According to the graph shown to the right,
what type of reaction has occurred? HINT: It’s an
explosion.
a. activation reaction
b. hydrogen reaction
c. Endothermic reaction
d. Exothermic reaction
• Exothermic reaction
13. Which of the following statements about
enzymes is NOT true?
a.
b.
c.
d.
Enzymes work best at a specific pH and temp
enzymes are types of proteins
Enzymes increase activation energy a lot
enzymes are biological catalysts
a. Enzymes increase activation energy a lot
14. A substance that lowers the activation
energy and increases the rate of a chemical
reaction is called a(an)
a. Catalyst
c. molecule
b. lipid
d. element
• Catalyst
15. The diagram shows how an enzyme (black) binds to a
substrate (white) during a chemical reaction. When this reaction
is complete, the
a. Enzyme changes shape and doesn’t function
b. The surrounding temperature increases
c. Hydrogen ions increase in concentration
d. The substrate makes a different molecule or product
• d. The substrate makes a different molecule or product
Chapter Seven: Cell Structure and
Function
1. Eukaryotes contain a ________________
where as prokaryotes do not contain this.
a.
b.
c.
d.
Cytoplastm
nucleus
genetic material
cell membrane
• nucleus
2. Which organelle converts food energy into
energy the cell can use for growth,
development, and movement? It is the
"powerhouse" of the cell
a. Chloroplast
b. Golgi apparatus
c. Endoplasmic Reticulum
d. Mitochondria
• d. Mitochondria
3. Which of the following is a function of the cell
membrane?
a. Regulates which materials enter and leave the
cell, like a window screen
b. Keeps the cell wall in place
c. Breaks down lipids, carbohydrates, and proteins
from foods
d. Stores water, salt, proteins, and carbohydrates
• a. Regulates which materials enter and leave the cell,
like a window screen
4. Diffusion is the movement of molecules from
a. an area of low solute concentration to an area of
high solute concentration.
b. an area of equilibrium to an area of high solute
concentration.
c. an area of high solute concentration to an area of
low solute concentration.
d. all of the above
• c. an area of high solute concentration to an area of
low solute concentration.
5. Which of the following is a function of the
nucleus?
a. controls most of the cell’s processes (“control
center”)
b. contains the information needed to make
proteins
c. stores DNA
d. all of the above
• d. all of the above
6. The small organelles found in both
prokaryotes and eukaryotes that builds a protein
are called
a. Lysosomes b. vesicles
c. nuclei
d. ribosomes
•
d. ribosomes
7. Cell A is a normal human blood cell before it is
placed in a solution. Cell B is the same human
blood cell after it placed in the solution. The
solution can be described as
a.
b.
c.
d.
Isotonic
hypertonic
hypotonic
equilibirium
Cell A
Cell B
• hypertonic
8. Which means of particle movement requires
an input of energy from the cell?
a. facilitated diffusion
b. osmosis
c. active transport
d. diffusion
• c. active transport
Chapter 8: Photosynthesis
1. The figure shows which of the following?
a. ADP
b. ATP
c. NADPH
d. NAD+
• b. ATP
2. Energy is released from ATP when
a. a phosphate group is added
b. adenine bonds to ribose
c. ATP is exposed to sunlight
d. A phosphate group is removed
• d. A phosphate group is removed
3. Photosynthesis uses sunlight to convert
carbon dioxide and water into
a. Glucose and oxygen
b. Glucose and water
c. Hydrogen and oxygen
d. ATP and water
• a. Glucose and oxygen
4. Which of the following equations best
represents photosynthesis?
a. 6O2 + C6H12O6  6CO2 + 6H2O + Energy
b. 6CO2 + 6H2O + Light Energy  6O2 + C6H12O6
c. 6CO2 + C6H12O6 +Light Energy 6O2 + 6H2O
d. 6O2 + 6H2O  6CO2 + C6H12O6
• b. 6CO2 + 6H2O + Light Energy  6O2 + C6H12O6
5. Which of the following is the site of the light
dependent reactions of photosynthesis in the
chloroplast?
a. Stroma
b. thylakoid
c. matrix
d. inner membrane space
• b. thylakoid
6. Which of the following is a reactant (input) in
the Calvin Cycle of photosynthesis?
a. O2
b. C6H12O6
c. CO2
d. COOH
• c. CO2