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Exam 1
chapters 1,2,3
| Question | Answer |
|---|---|
| Gunther von hagens studues human body structur in his structural display known as body worlds | Anatomist |
| which of the folowing would be agood example of complementarity of structure and function. | Bones can support and protect body organs because they contain hard mineral deposits. |
| A horizontal sectionthorugh the body dividing it into top and bottom is called | transverse |
| Whichvbody cavity protects the fragile organs of the nervous system | dorsal |
| the bladder lies in the blank cavity | Pelvic |
| Which of the following would not be a functional characteristics of life? | decay |
| The single most abundant chemical substance of the body accounting for 60% to 80%of body weight is | water |
| Which of the following statements is true concerning feedback mechanisms | negative feedback mechanisms work to prevent sudden severe changes within the body |
| the body's ability to maintain a relatively stable internal environmeny even though the external is constantly changing is | homeostasis |
| Survival needs of the body include | Nutrients, water atmospheric pressure and oxygen |
| Choose the following statement that is not completely correct regarding serous membranes | Serous membranes are only foundin the dorsal body cavities |
| Which of the following ventral body cavities has no bony protection? | abdominal cavity |
| The serous membrane associated with the abdomen | peritonem |
| The system that includes the nose trachea and lungs is the | respiratory system |
| The organ system that includes the skin hair nalis and receptors is the | integumentary system |
| In anatomical position the nose is ? to the eyes? | medial |
| whichof the following is not a function od the muscular system? | produces hormones |
| Which of the following organ systems is responsible for rapid communication throughout the body? | the nervous system |
| the state of matter that has neither shape nor the volume is a | gas |
| oxygen has atomic number of 8 this tells us | oxygen has 8 protons |
| Very small subatomic particles found orbiting the nucleus of an atom are | electrons |
| Abond formedbetweenoppositley charged particles is known as | an ionic bond |
| A solution that has a pH of 2 is considerd | acidic |
| blank is a suspensiion | Blood |
| Building blocks of proteins are | amino acids |
| factors that accelerate the rate of chemical reactions include all except | increasing the particle |
| Water's importance to living systems reflects | its polarity and solvent properties/ its heat capacity/ its high heat of vaporization |
| The elctricity in your homeand the electrical impulses of the nervous system are an example of | electrical energy |
| Which of the following is a concept of the cell theory | a cell is the basic structural and functional unit of living organisms |
| the plasma membrane is | the lipid bilayer surrounding the cell |
| Passive membrane transport processes include | a movement of a substance down its concentration gradient |
| Which of the following is a concept of cell theory? | A cell is a basic structural and functional unit of living organisms |
| Dna structure is a double helix. if we know one strand of the doublehelix contains the bases CGA TAT CAG what would its complementary strand contain? | GCT ATA GTC |
| RNA differs from dna in that, rna | is a single strand, contains uracil, contains ribosomes |
| The process bywhich a cell engulfs a substance such as a bacterium is knownas | phagosyctosis |
| The three main parts of the cell include all f the following except | mitochandria |
| During the cell cycle the period of the normal growth is known as | interphase |
| DNA replication | Ensures both daughter cells of mitosisrecive identical genetic information, occurs during interphase of the cellcycle, is semiconservative |
| The organellethat is the sight of the atp synthesis and is known as the powerhouse of the cell is | mitochandria |
| Which of the followingstaements regarding the cytoskeleton of the cell is not true | The cytoskeleton plays an important role in degrading worn out organelles |
| During anaphase | sister chromatids move to opposite poles |
| A genecan be best be defined as | a segment of dna that carries theinstructions for one polypeptide chain |
| Diffusion of water across a selectively permeable membrane is known as | osmosis |
| the organelles that contains digestive enzymes and helps break down old organelles are | lysosomes |
| The organelles that packages, modifies and segregates proteins for secretion from the cell is the | golgi apparatus |
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