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A&P Ch.3
Cells
Question | Answer |
---|---|
The smallest living units of structure and function | Cells |
Cell Membrane (plasma membrane) is made of? | Phospholipids, cholesterol, and protein |
Phospholipids form? | A bilayer |
Cholesterol provides? | Stability |
What are proteins? | Transporters, antigens, and receptor sites |
The cell membrane is? | Selectively Permeable |
The cell membrane can carry? | Electric Impulses |
What is the Nucleus? | Control center of the cell. |
Nucleus is made of? | DNA, RNA, and protein |
Nucleus has? | Double-layer membrane with pores |
The nucleus contains the ? | Chromosomes of the cell |
Human chromosome number? | 46 |
Chromosomes are made of? | DNA and Protein |
What is DNA? | The genetic material |
Proteins are? | Enzymes |
What is a gene? | The code for one protein. |
Passageway | Endoplasmic Reticulum (ER) |
Protein synthesis | Ribosomes |
Destruction of old or damaged proteins | Proteasomes |
Packaging of materials for secretion from the cell | Golgi Apparatus |
Site of ATP production | Mitochondria |
Have digestive enzymes | Lysosomes |
Organize the spindle fibers during cell division | Centrioles |
Sweep materials across the cell surface | Cilia |
Enables a cell to move | Flagellum |
folds of the cell membrane on the free surface of a cell | Microvilli |
Protein microfilaments that give shape to a cell, support the membrane and microvilli, and provide for attachment and movement | Cytoskeleton |
What is a watery solution of minerals, gases, and organic molecules? | Cytoplasm |
What moves materials into or out of a cell? | Cellular Transport Mechanisms |
What copies a gene from DNA? | mRNA |
What is sites for mRNA? | Ribosomes |
mRNA copies a DNA gene is called? | Transcription |
When tRNA molecules assemble amino acids in proper sequence on the mRNA its called? | Translation |
Where is DNA found? | Nucleus |
Copying of the gene is? | Transcription |
The actual copy of the gene is? | mRNA (messenger RNA) |
What is one cell with the diploid number of chromosomes divides once to form two cells, each with the diploid number of chromosomes (46) ? | Mitosis |
what is one cell with the diploid number of chromosomes divides twice to form 4 cells, each with the haploid number of chromosomes? | Meiosis |
What is the human diploid number? | 46 |
What is the human haploid number? | 23 |
What is the cell division process that forms gametes? | Meiosis |
What stores the diploid number of chromosomes? | Fertilization |
What has one division? | Mitosis |
What has two divisions? | Meiosis |
What is for sexual reproduction? | Meiosis |
What is the intake of glucose by most cells called? | Facilitated Diffusion |
What is movement of the lungs called? | Diffusion |
What is movement of NA+ in a neuron sodium pump called? | Active Transport |
What is engulfing of bacteria by white blood cells (WBC's) called? | Phagocytes |
What is the formation of tissue fluid from blood plasma called? | Filtration |
What is reabsorption of small proteins by kidney cells called? | Pinocytosis |
What is absorption of water by the small intestine called? | Osmosis |
What is the first step in the formation of urine called? | Filtration |