Exam 1-5 Flashcards
An “educated guess” about the solution to a problem is a
Hypothesis
The difference between a control group and an experimental group is the
Independent variable
In scientific work, one of the primary goals is to find information that is
Workable
The supposed process by which nonliving things can be changed directly into living things is
Spontaneous generation
Which of the following is NOT necessary for something to be considered alive?
Reproduction
The bending of light as it passes through an object is called
Refraction
To reduce the possibility of error, a scientific experiment should NOT have
More than one variable
If a scientific discovery contradicts Scripture, a Bible-believing Christian must view that discovery as
A fallacy
Biology is the study of
Life
If the results of a scientific experiment are accurate and reliable, they are said to be
Valid
The ability of a microscope to deliver a clear, detailed image depends on its
Resolution
To determine the number of students in your school who own a microscope, you would
Conduct a survey
When people put the data from scientific research together to explain a phenomenon, they are
Forming a hypothesis
Chemical reactions that absorb heat are called
Endothermic
Activation energy is
The energy needed to start a reaction
The subatomic particles found in the nucleus of an atom are
Protons and neutrons
Which of the following is NOT a characteristic of enzymes
Enzymes serve as inorganic catalyst
An atom having a negative or a positive charge is called
An ion
Anything that occupies space and has mass is
Matter
When only water diffuses through a selectively permeable membrane, the process is called
Osmosis
A physical change is demonstrated by A. Boiling of water B. Mixing sugar and water C. Energy D. All of these
D. All of these
Matter consists primarily of
Energy
Diffusion will continue until what point is reached?
Equilibrium
The molecular structure of chitin is most similar to
Cellulose
If a bottle of ammonia is spilled in the basement and you begin to smell it upstairs, what process is demonstrated
Diffusion
Which of the following is NOT a lipid?
Nucleotide
Catalyst affect the rate of a reaction by
Changing the amount of activation energy necessary for the reaction
What substance is often called a universal solvent?
Water
A homogenous mixture
Is the same throughout
Which of the following is NOT contained in a nucleotide?
Lipid
When a large molecule is broken down by adding a water molecule, the process is called
Hydrolysis
A type of polysaccharide that accounts for the strength of plant cells and is NOT digestible to most animals and humans is
Cellulose
The basic building blocks of a protein are
Amino acids
The process of transferring the complementary DNA base sequence to a molecule of RNA is called
Transcription
Cork “cells” we’re first identified by
Hooke
The diffusion of water into a cell by osmosis results in a build-up of
Turbot pressure
Organisms made up of cells that can operate independently but that normally tend to group together are called
Colonial
Which of the following is NOT a characteristic of a prokaryotic cell?
Membrane-bound organelles
The cell theory states that cells are the basic units that make up a all living things, cells come from preexisting cells, and
Cells are the units that carry on the functions of all living things
Chloroplasts contain
Grana
The process by which large volumes of fluid enter a cell through pouches in the cell membrane is
Pinocytosis
Since diffusion is a purely physical process (it requires no cellular energy), it could be a form of
Passive transport
Several tissues grouped together and working as a unit form
An organ
The control center of most cell activity is the
Nucleus
Which of the following is NOT a characteristic of a eukaryotic cell?
A nuclear area not enclosed in a membrane
A solution that has a greater concentration of water molecules than the cell it surrounds is
Hypotonic
The use of cellular energy to change the permeability of a membrane is called
Active transport
Which of the following CANNOT be recycled?
Energy
An example of an autotrophic organism is
An oak tree
The DNA code is carried from the nucleus to the ribosomes by
Messenger RNA
The major products of photosynthesis are
Oxygen and glucose
One example of a phosphorus-containing compound that stores energy is
ATP
A process that does NOT use oxygen is
Anaerobic
The man who discovered much of the information we know about photosynthesis was
Calvin
A nutritionally dependent organism is said to be
Heterotrophic
The light-independent phase of photosynthesis takes place in
Neither the presence nor absence of light
The molecule that delivers amino acids to ribosomes is
Transfer RNA
The phase of photosynthesis that splits water molecules is the
Light-dependent phase
When living things obtain energy for life processes from inorganic materials, they are performing
Chemosynthesis
The breakdown of glucose by enzyme action in the absence of oxygen is
Fermentation
The nitrogen-containing base that is found only in RNA is
Uracil
Each messenger RNA codon codes for
An amino acid
The destructive (energy-releasing) phase of metabolism is
Catabolism
