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56 Cards in this Set
- Front
- Back
- 3rd side (hint)
Cell division is what? |
Process by which a cell divides into two new cells |
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Living things grow by |
Producing more cells not because each cell increases in size |
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Repair of |
Damaged tissue |
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If the cell gets too big it cannot get enough |
Nutrients into the cell and waste out of the cell |
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The original cell is called the |
Parent cell |
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The two new cells are called |
Daughter cells |
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Before cell division occurs the cell replicates all of its DNA so each daughter cell gets |
Complete set of genetic information from parent cell |
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Each daughter cell is exactly like the parents |
Same kind a number of chromosomes as the original cell |
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Many organisms especially unicellular organisms reproduce by means of cell division called |
Asexual reproduction Example bacteria |
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DNA is located in the |
Nucleus and controls all cell activities including cell division |
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Long and threadlike DNA in a non-dividing cell is called |
Chromatin |
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Double coiled short DNA and a dividing cell is called |
Chromosomes |
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DNA consist of what two parts |
Chromatid and centromere |
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Two identical sister chromatids attached at an area in the middle are called |
Centromere |
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One cell divides sister |
Chromatid separate and one ghost each new cell |
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Why does DNA need to change chromatin to chromosome |
More efficient division |
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Every organism has its own |
Specific number of chromosomes |
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How many chromosomes do humans have |
46 |
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All somatic cells and organisms have the same |
Kind and number of chromosomes |
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What does somatic mean |
Body |
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The cell cycle is a |
Series of events selves go through as they grow and divide |
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So gross prepares for division then |
Divides to form two daughter cells each of which then begins the cycle again |
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Sell cycles have checkpoints which telesales when it is time to |
Divide |
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The interphase is |
Is the period of cell growth and development |
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What occurs during interphase |
DNA replication |
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During interphase the cell also grows carries out |
Normal cell activities replicate all other organelles |
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The cell spends most of its life cycle in |
Interphase |
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Interphase is divided into what three phases |
G1 is cells increase in size and synthesize new proteins and organelles S is synthesis of DNA or DNA replication G2 is organelles and molecules required for cell division are produced |
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What is mitosis |
The division of the nucleus into two nuclei each with the same number of chromosomes |
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Mitosis occurs in |
All the somatic cells |
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Why does mitosis occurs |
So each new daughter cell has a nucleus with the complete set of chromosomes |
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What is PMAT |
P is Prophase M is Metaphase A is Anaphase T is Telophase |
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What is cytokinesis |
The division of the rest of the cell after the nucleus divides |
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Animal cells the |
Cytoplasm pinches in |
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Plant cells a |
Cell plate forms |
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After mitosis and cytokinesis the cell returns to |
Interphase to continue to grow and perform regular cell activities |
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When cells become old or damaged |
Die and are replaced with new cells |
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DNA controls all cell activities including |
Cell division |
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Some cells lose their ability to |
Control their rate of cell division the DNA of the cells become damaged or mutated |
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These super dividing cells form |
Masses called tumors |
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Benign tumors are |
Not cancerous the cells do not spread to other parts of the body |
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Malignant tumors are |
Cancerous the cells break loose and can invade and destroy healthy tissues in other parts of the body this is also called metastasis |
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What are the stages of cell cycle |
1. Interphase 2. Mitosis P-nuclear envelope disappears chromosomes coil up M-line up in the middle A-chromosomes split go opposite sides and nuclear envelope reappears T-the cell begins to split into two 3.cytokinesis chromosomes back to chromatin division of the rest of the cell cytoplasm and organelles |
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DNA is wrapped tightly around histones and coiled tightly to |
Form chromosomes |
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DNA and RNA are examples of which type of biomolecule |
nucleic acid |
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DNA is made up of repeating molecules called |
Nucleotides |
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Nucleotide consists of three different |
Phosphate sugar and nitrogenous base |
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DNAs structure is called |
A double helix |
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The double helix structure was discovered by three |
Rosalind Franklin Watson and Crick Frederick Griffith |
Apples are tasty and cookies are good |
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What are the specific parents between the nitrogen bases |
Adenine with Thymine Cytosine with Guanine |
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DNA was made of two long strands of nucleotides arranged in a specific way called the |
Complementary rule |
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What are the purines |
Adenine and guanine |
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What are the pyrimidines |
Thymine and Cytosine |
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Nitrogenous base is always connected to |
A phosphate and sugar deoxyribose |
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Their amounts in a given DNA molecule will be |
About the same |
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Complementary nitrogen bases pair up and connect via |
Hydrogen bonds |
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