Lecture Exam 1

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The major function of ribosomes is to synthesize

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Diffusion of water through a selectively permeable membrane in the presence of at least one impermeant solute is referred to as

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Main cell structures include all of the following except

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The physical process by which water and solute move through a membrane when a hydrostatic pressure gradient exists across the membrane is the process of

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If a 20% glucose solution is separated from a 10% glucose solution by a permeable membrane

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Chromosomes and chromatin are both forms of DNA

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Transcription can be best described as the

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The major direct cell connections are tight junctions, gap junctions, and desmosomes

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Rough endoplasmic reticulum looks rough because there are mitochondria attached to it

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Preparation of protein molecules for cellular exportation is the function of which of the following organelles?

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The structure that separates the contents of a cell from the surrounding tissue is known as

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The number of mitochondria in a cell is basically related to its degree of activity

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Which of the following is a functional characteristic of ribosomes?

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An individual’s entire set of DNA can be referred to as:

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Which of the following is not true of RNA?

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A saline solution that contains a higher concentration of salt than a living red blood cell would be

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A DNA molecule is characterized by all of the following except

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A 10% solution of NaCl has a higher concentration of water than a 10% solution of glucose

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Homeostasis can best be described as:

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Phagocytosis is an example of

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A frontal section divides the body into

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Positive feedback control systems

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The functions of the nucleus are actually regulated by RNA

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Granules or threads within the nucleus are called

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A sequence of three bases forms a(n)

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With reference to the left elbow, the left shoulder would be the contralateral shoulder.

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The anticodon on the tRNA molecule is exactly the same nucleotide sequence as the DNA code that formed that part of the mRNA molecule except that uracil would replace thymine.

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The G1 and G2 phases of cell growth are separated by:

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The pairing of bases of a strand of DNA is obligatory. If a strand of DNA were composed of the base sequence of ATCG, what would be the obligated sequence of its opposing base pairs?

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Ribosomes attached to the endoplasmic reticulum are responsible for making proteins for export out of the cell.

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Proximal and distal are opposite directional terms in humans.

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In the cell membrane, the hydrophilic part of the phospholipid molecule:

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When the chromosomes align themselves across the equator of the spindle fibers, it is characteristic of which phase of mitosis?

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Projections from the cell that move materials and mucus are:

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A plane through the body that would divide the body into anterior and posterior portions is:

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A hypertonic solution contains:

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Each of the following is an example of the plasma membrane function except:

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A nucleotide of a DNA molecule consists of a ribose sugar, phosphoric acid, and a nitrogenous base.

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The abdominopelvic cavity contains all of the following except the:

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An organ is one organizational step lower than a(n):

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Dialysis is a form of filtration that results in a separation of small and large solute particles.

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ATP production occurs within which organelle?

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Genes determine polypeptide structure, which determines the structure of enzymes and structural proteins, which determine the cell’s functions and structure.

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Shivering to try to raise your body temperature back to normal would be an example of:

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Which of the following statements is true?

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The structure in white blood cells associated with the enzymatic breakdown of foreign material is the:

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In anatomical position, the person is standing erect with arms at the sides and palms dorsal.

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Visceral peritoneum would cover which of the following organs?

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The action of a gene is determined by the arrangement of the obligatory base pairs in the nucleotides composing a DNA molecule.

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Ventral and posterior are synonymous terms

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Which organelle processes and packages material to be secreted?

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The head, neck, arms, and legs make up the axial skeleton.

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Which of the following is not a function of the plasma membrane?

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Two major cavities of the human body are:

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The bone of the upper arm is deep to the muscles that surround and cover it.

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The basic unit of structure and function in the human body is a(n):

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The correct arrangement of the phases of mitosis is:

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When many similar cells specialize to perform a certain function, it is referred to as:

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In certain situations, cells “commit suicide.” This function would be carried out by the lysosomes.

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In normal mitosis, the two daughter cells are identical genetically to the parent cell.

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The organelles that can digest and destroy microbes that invade the cell are:

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DIFFUSION REQUIRES

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Peroxisomes contain enzymes that detoxify harmful substances.

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A specialized cell structure that propels the sperm is the:

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Diffusion of particles through a membrane by means of a carrier molecule is called:

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Which of the following is not a major tissue of the body?

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The major energy production site of the cell is the:

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The ( centrosome, cytoskeleton, centriole, ribosome ) is often called the microtubule-organizing center.

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Materials can be moved from a low concentration to a high concentration through:

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Glycoproteins on the cell membrane would prevent someone with type A blood from accepting type B blood.

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The ventral body cavity contains the:

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Negative feedback mechanisms