First Semester Review for Biology
• The biomoelcule that has a 1:2:1 ratio of
C:H:O
• carbohydrates
• What is the acronym for the scientific
method?
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D. Define problem
R. research
H. Hypothesis
E. Experimental setup
R. Results
C. conclusion
• Closely packed molecules in a container is
known as a ___________. (It can take the
shape of the container)
• solid
• The type of bond that transfers electrons to
fulfill their valences.
• ionic
• The particles that you will find orbiting the
nucleus of an atom in energy levels.
• electrons
• What is the inorganic molecule that is polar
and is known as the best solvent in the world?
• water
• What is the name of the protein that helps
speed up reactions?
• Enzymes
• catalysts
• Anything that contains carbon is also known
as__________.
• organic
• Another term for maintaining the body’s
balance is called_____________.
• homeostasis
• Any substance that contains all like atoms is
also known as a(n) _____________.
• element
• The particle that is also the atomic number of
an atom is _______________.
• The number of protons. It could also be the
electrons.
• A substance with a pH of 1-6.9 is a(n)_______
• acid
• The study of life is known as ___________.
• biology
• The type of bond that shares electrons to
fulfill its valences is called____________.
• covalent
• The biomolecule that contains nitrogen is
___________________
• protein
• The smallest part of a living thing is the
_________
• cell
• The boss of the cell is the ___________
• nucleus
• A passageway that carries proteins from the
nucleus to other parts is the _________
• E.R. (Endoplasmic Reticulum)
• The cell organelle that makes ribosomes is the
_____________
• Nucleolus (It is inside of the nucleus)
• What do all living things need?
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Respiration
Digestion
Made up of at least one cell
Reproduce
Use energy
Get rid of waste
• What are instructions for traits that are
passed from one generation to another
called?
• genes
• What is a hypothesis?
• An educated guess. It is the part of the
experiment that is testable.
• What is a theory?
• A very broad explanation
• What makes carbon so special?
• It has a valence of four electrons.
• It can either gain or lose four electrons to
fulfill its valence.
• What are the monomers of carbohydrates?
• Sugars which are also known as saccharides
• What is the main difference between a
prokaryote and a eukaryote?
• The prokaryote does not have a nucleus
• What part of the eye detects color?
cones
• Cones
• What is astigmatism?
• A misshapen eye that causes a person to not
see clearly.
• What was the cause of eye problems in the
people in Nepal?
• Because they live in such high elevation the
sunlight’s UV is much more damaging to eye
tissue. Also, a poor diet can cause it.
• Which part of the ear changes sound waves
(vibration) to electrical impulses?
• cochlea
• Name the three main parts of the brain.
• Cerebellum
• Cerebrum
• Brain stem
• Which part of the neuron sends impulses to
the next cell?
• The axon
• Which cells of the body contain more
mitochondria than any other?
• Muscle
• Nerve
• What are the differences between mitosis and
meiosis?
• Mitosis-asexual reproduction makes two
identical daughter cells
• Meiosis-sexual reproduction makes four
haploid daughter cells
• How many chromosomes does a skin cell have
in a human?
• 46 or 23 pair
• If you drank salt water for two days what
would happen to the cells of your body?
• The cells would dehydrate because the
solution around them are hypertonic
• Is it possible to drink too much water in too
short of time. Explain.
• Too much water makes a hypotonic
environment for your cells making them
unable to work because they are too swollen
with water
• What is needed for photosynthesis to occur?
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Sunlight
Water
Carbon dioxide
Chlorophyll
• What is needed for cellular respiration to
occur?
• Sugar
• Oxygen
• What is the epiphysis and diaphysis?
• Diaphysis=shaft of long bone=compact bone
• Epiphysis=end of long bone=spongy
• Could we hear without air? Explain.
• No. Sound waves need the particles in air to
travel.