Bio 109: First Exam

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Components of the cytoskeleton may include all of the following except

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The process of protein formation directed by mRNA is called

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The tails of a phospholipid molecule are

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The duplication of DNA is called ____, the copying of DNA to mRNA is called _, and the reading of the mRNA by a ribosome to make a protein is called ____.

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Most of a cell’s DNA is located in its

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Which of the following is NOT a function of membrane proteins?

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Organelles that breakdown fatty acids and hydrogen peroxide are

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The components of ribosomes are formed within

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Compared to the extracellular fluid, cytosol contains

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Renewal or modification of the cell membrane is a function of the

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The potential difference across the cell membrane is known as

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Cell membranes are said to be ______ because they allow some substances to pass but not others.

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Which of the following best describes osmosis?

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Special cells called ______ maintains tissues by unending cycles of cell division.

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The _______ of a cell membrane indicates how easy it is for substances to cross.

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During this phase of cell division, the chromosomes uncoil, the nuclear membrane forms, and cytokinesis occurs.

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The stage in a cell’s life cycle in which the cell performs it’s normal functions and prepares for division is called

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A solution that contains a lower osmotic pressure than the cytoplasm of a cell is called

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Permanent altercations in a cell’s DNA that affect the nucleotide sequence of one or more genes are called

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All of the following membrane transport mechanisms are passive processes except

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When the arrector pili muscles contract,

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Which of the following happens if the body temperature rises above normal?

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Accumulations of fluid within the epidermis or between the epidermis and the dermis is/are called

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The clinical term for a bruise is a(n)

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A bruise turns “black and blue” because of _____ in the dermis

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The layer of hard keratin that coats the hair is termed the

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A child who skins his knee in a fall has a(n)

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Sensible perspiration is produced by _______ glands.

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Wrinkles in individuals are the result of

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Large quantities of keratin are found in the epidermal layer called the stratum

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Each of the following is a function of the integumentary system except

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The protein that permits stretching and recoiling of the skin is

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The layer of the skin that contains the blood vessels and nerves that are closest to the surface of the skin is the _______ layer.

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The layer of the skin that provides a barrier against bacteria as well as chemical and mechanical injuries is the

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The layer of stem cells that constantly divide to renew the epidermis is the

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Skin can regenerate effectively even after considerable damage has occurred because

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The _____ gland in the axilla become active at the time of puberty.

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The epidermis of the skin is composed of what type of tissue?

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Which of the following is formed in the skin when it is exposed to the sunlight?

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An albino individual lacks the ability to produce

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One mole of any element has the same

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The nucleus of an atom consists of

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The molecule O2 is known as

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In hydrolysis reactions, compounds react with

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The chemical behavior of an atom is determined by the

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In chemical notation, the symbol Ca2+ means

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Chemical reactions that yield energy, such as heat, are said to be

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Substrate molecules bind to enzymes at the _______ sites.

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Kinetic energy is stored as ______ energy when a spring is stretched.

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Atoms of the same element whose nuclei contain the same number of protons, but different numbers of neutrons, are called

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If the substance has a pH that is greater than 7, it is

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Of the following choices, the pH of the least acidic solution is

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The alpha-helix and beta sheet are examples of _____ protein structure.

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Which of the following statements about water is false?

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A dust particle floating on a water surface illustrates

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Molecules with two fatty acids chains and a phosphate group that form biological membranes are called

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Glycoproteins and proteoglycans are combinations of amino acids and

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A(n) __ removes hydrogen ions and a(n) _ releases hydrogen ions.

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A polysaccharide that formed in liver and muscle cells to store glucose is

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When two monosaccharides undergo a dehydration synthesis,

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Which subatomic particle carries a negative charge?

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The atomic number represents the number of

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The formation of a cation and an anion is indicative of

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What type of reaction is A + B + energy —> AB?

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Which of the following increases the rate of a reaction?

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Which statement best describes enzyme function?

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On the pH scale, which number has the highest concentration of hydrogen ions?

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Which two organ systems work to maintain pH balance in the body?

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Salts are held together by ______.

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The monomer of the carbohydrates is ________.

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A fatty acid that contains two or more double covalent bonds is ______.

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Amino acids are the monomers for ________.

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Which of the following is the same among isotopes of the same element?

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In the following chemical reaction, what is NaCI?
NaOH + HCI —> NaCI + H20

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Determine the number of protons in an isotope of nitrogen with an atomic number of 7 and a molecular number of 14.

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Cytosol is also known as _____.

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Which of the following is a function of a plasma membrane protein?

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Carbon dioxide is a small molecule that moves through the phospholipid bilayer with its concentration gradient by ______.

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Active transport processes _____.

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Two types of active transport via vesicles are ______.

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What organelle degrades old, worn-out organelle and cell components?

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Microtubules are composed of proteins subunits known as ______.

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Cell division occurs during ______.

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During which phase of the M phase of the cell cycle does the mitotic spindle form?

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During which phase of mitosis are sister chromatids separated when the mitotic spindle fibers shorten?

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Programmed cell death is called ______.

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A cell is placed into a 3% dextrose solution. At that concentration, the solution is isotonic to the cell. If the concentration of dextrose in the solution is increased to 5%, the cell is now in _______.

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If a cell has 18 chromosomes and undergoes mitosis, how many chromosomes would each daughter cell have?

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Sodium ions are moving with their concentration gradient with the use of a protein channel across a plasma membrane. Determine the type of membrane transport used to transport these sodium ions.

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The main components of the skin are the _______.

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Which of the following is NOT a function of the skin?

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Which sensation is NOT detected by the skin?

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Lecture Chapter 2,3,5

Bio 109: First Exam

Components of the cytoskeleton may include all of the following except

The process of protein formation directed by mRNA is called

The tails of a phospholipid molecule are

The duplication of DNA is called ______, the copying of DNA to mRNA is called _____, and the reading of the mRNA by a ribosome to make a protein is called ______.

Most of a cell’s DNA is located in its

Which of the following is NOT a function of membrane proteins?

Organelles that breakdown fatty acids and hydrogen peroxide are

The components of ribosomes are formed within

Compared to the extracellular fluid, cytosol contains

Renewal or modification of the cell membrane is a function of the

The potential difference across the cell membrane is known as

Cell membranes are said to be ______ because they allow some substances to pass but not others.

Which of the following best describes osmosis?

Special cells called ______ maintains tissues by unending cycles of cell division.

The _______ of a cell membrane indicates how easy it is for substances to cross.

During this phase of cell division, the chromosomes uncoil, the nuclear membrane forms, and cytokinesis occurs.

The stage in a cell’s life cycle in which the cell performs it’s normal functions and prepares for division is called

A solution that contains a lower osmotic pressure than the cytoplasm of a cell is called

Permanent altercations in a cell’s DNA that affect the nucleotide sequence of one or more genes are called

All of the following membrane transport mechanisms are passive processes except

The duplication of DNA is called ____, the copying of DNA to mRNA is called _, and the reading of the mRNA by a ribosome to make a protein is called ____.