cell
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36 terms
Terms | Definitions |
|---|---|
 Each daughter cell resulting from mitotic cell division has exactly as many chromosomes as the parent cell | TRUE |
| Apoptosis is programmed cell suicide, but cancer cells fail to undergo apoptosis | TRUE |
| Final preparation for cell division is made during the cell life cycle subphase called G2 | TRUE |
| Chromatin consists of DNA and RNA | FALSE |
| In osmosis, movement of water occurs toward the solution with the lower solute concentration | FALSE |
| The genetic information is coded in DNA by the regular alternation of sugar and phosphate molecules | FALSE |
| A process by which large particles may be taken into the cell for food, protection of the body, or disposing of old or dead cells is called phagocytosis | TRUE |
| The orderly sequence of the phases of mitosis is prophase, metaphase, anaphase, and telephase | TRUE |
| Diffusion is always from areas of greater to areas of lesser concentration | TRUE |
| DNA transcription is another word for DNA replication | FALSE |
| Interstitial fluid reresents one type of extracellular material | TRUE |
| The cell (plasma) membrane normally contains substantial amounts of cholesterol | TRUE |
| Only one cell type in the human body has flagellum | TRUE |
| Telomeres are the region of chromosomes that code for the protien ubiquitin | FALSE |
| what happens during generation of a membrane potential | Both potassium and sodium ions leak through the cell membrane due to diffusion |
| what RNA is responsible for bringing amino acids to the "factory" site for protein formation? | tRNA |
| red blood cells placed in pure water would _____? | swell and burst |
| describe plasma membrane | the phospholipid bilayer surrounds cell |
| fingerlike projections that greatly increase the absorbing surface of cells | Microvilli |
| diffusion | the greater the concentration of gradient, the faster the rate |
| If cells are placed in a hypotonic solution containing a solute to which the membrane is impermeable, what would happen? | the cells will lose water and shrink |
| intercellular material | is not a subcellular structure |
| what is a function of plasma membrane protein | molecular transport through the membrane |
| RNA | Messenger RNA, Transfer RNA, and robosomal RNA play a role in protein synthesis |
| mitosis | prodices nucleus replication |
| melanin is a __? | inclusion |
| 2 organells | microtubule, lysosome & Cilia |
| Passive membrane transport processes include ______ | movement of substance down its concentration gradient |
| mitochondria | contains some of the DNA and RNA code necessary for their own function |
| when does DNA replication take place? | during interphase of the cell cycle |
| in transcription/translation what occurs | the nucleotide sequence in a tRNA anticodon is an exact copy of the DNA triplet that coded for it except thar uracil is substituted for thymine |
| concept cell theory | a cell is the basic structual and functional nit of living organisms |
| whats the main component ot cytosol | water |
| extracellular matrix is _______ | the most abundant extracellular material |
| crenation is likely to occur in blood cells in _____ | a hypertonic solution |
| if tRNA has a AGC anticodon it could attach to a _____ | UCG |
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