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Bio Chapter 1
Terms in this set (49)
The primary elements making up living organisms are
carbon, hydrogen, oxygen, sulfur, nitrogen, and phosphorus.
Organisms that make their own nutrients by capturing energy from nonliving resources (solar energy) are called
In living organisms emergent properties,
are functions that arise from interactions between a system's components.
The basic unit of classification in the taxonomic hierarchydesignating the organism "type," is the
In a chemical equation which components of a chemical reaction are found on the left side of the arrows?,
Thinking about life's organizational hierarchy in a biological system which of the following is the correct sequence from the smallest unit to the largest unit?
atom - molecule - organelle - cell - tissue
A structure found in cells of all three domains prokaryotes and eukaryotes, is the,
A major difference between prokaryotes and eukaryotes is that whereas prokaryotes
do not have a nucleus, eukaryotes have a nucleus in their cells.
The first energy shell of an atom has one orbital. Therefore it can contain a maximum of ________ electron(s).,
In an experimental procedure the researcher has established multiple levels of a chemical, or amounts of light, or some other factor at the beginning of the experiment, in order to determine if and how much the biological system responds. The manipulated factor at varying levels is the,
The hierarchy of life extends past individual organisms. Which of the following is the correct sequence from least inclusive to most inclusive, following an individual organism?,
population - community - ecosystem - biosphere
Which of the following would not be a "control" in an experimental procedure?
an experimental group
is a chemical that adds hydrogen ions to a solution.
Organisms that obtain energy and nutrients by eating either living or dead organisms are called
The four kingdoms included in the domain Eukarya are
Protista, Fungi, Plantae, and Animalia.
Which is not a lipid?
In an experimental procedure the researcher measures changes, such as cell growth rates, numbers of patients with a disease, etc. in response to factors manipulated at the beginning of the experiment. This measure of change in response to the initial conditions is the,
Examine this diagram. Note the structure of branches connecting groups of organisms. Called a phylogenetic tree the branches propose relationships among organisms to each other, related to common ancestors. Although the proposed relationships can be described in sentences, the diagram summarizes them visually. Which of the following statements is true based on this diagram?,
The organisms in domain Archaea are more closely related to the organisms in domain Eukarya than those in domain Bacteria.
You have macrophage white blood cells that can respond to injury and infection by moving to the site of the wound. They can ingest infectious bacteria or viruses and digest the organic molecules of what they take in. The digestion organelle they have is the,
Which of the following is an example of a characteristic of life?
All of the answer choices are correct.
The primary structural molecule composing a cell membrane is a(n)
The correct functions of your lungs contribute to the normal pH level of between 7.35 and 7.45. If your lungs do not exchange and remove carbon dioxide from your blood
the blood pH will change. A pH 6.4 reading of your blood indicates, a health problem due to 10X higher H+ concentrations than normal in your body.
Our normal blood pH should be in a fairly narrow range. Imagine you sit down to eat a large meal with cola tomato-based sauce, and a salad with many citrus fruit slices. Identify the one statement that does not apply as one of the likely outcomes of your meal.,
Your blood and body fluids will likely become more basic, with a higher pH than the normal range.
To be considered living an organism must minimally consist of,
one or more cells.
The primary building block (monomer) of nucleic acids is
If a molecule is added to a glass of water and is easily dissolved by the water, the added molecule is described as hydrophilic.,
Which of the following is not a description of the cell membrane?
It is a rigid structure.
The most prominent organelle visible in most eukaryotic cells is the
The primary building block (monomer) of proteins
is an amino acid.
Water has unique properties which include its strength as a solvent; its three environmental stages of solid liquid, and gas; and its temperature regulation. These properties are due to polar covalent bonds between oxygen and hydrogen. The polar covalent bonds are a result of,
oxygen being more electronegative and therefore attracting more electrons than hydrogen.
In an ionic bond
atoms, having gained or lost electrons, attract one another with opposite charges.
If a protein is denatured its structure has been changed enough to make the protein nonfunctional.,
An organelle found in plant ce lls and some members of the kingdom Protista but not in animal cells is a
A phospholipid molecule has
a hydrophilic head that is attracted to water.
In a covalent bond
atoms share electrons.
Blood is closely maintained at a pH of 7.4. A patient whose blood pH drops below 7.35 is suffering from metabolic acidosis and can go into a coma. What happens to the concentration of H+ ions in a patient with a blood pH of 6.4?
H+ concentration is increased ten fold.
Within a single molecule of water as shown, ____ bonds are formed between oxygen and hydrogen.,
The group of organic molecule polymers with the most complex and diverse three-dimensional structure is
Which of the following is not a true statement about the scientific method?
It does not apply to problems encountered in everyday life.
Which of the following is not true about a hypothesis?
It can be proven to be true.
The three domains in the Woese classification system are
Archaea, Bacteria, and Eukarya.
Which of these is not a required characteristic of life?
Prokaryotes are only found in the domain Bacteria.
Based on the 1:2:1 proportions of carbon hydrogen, and oxygen, it can be determined that the glucose molecule is a(n),
Starchy foods in our diets such as rice and potatoes, consist of many glucose molecules covalently bonded together to form,
a complex carbohydrate.
The atomic number of an element is the number of
protons in the nucleus.
When phospholipids are mixed with water their ____ interact with water and their ____ are repelled
forming a lipid bilayer., hydrophilic heads; hydrophobic tails
A prokaryotic cell
does not have a nucleus.
A eukaryotic cell
has membrane-bounded organelles.
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