6808372
Descripción
Fichas por McKenzie Sanders, actualizado hace más de 1 año
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Creado por McKenzie Sanders
hace más de 7 años
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| Pregunta | Respuesta |
| What are the 4 important ions and their charges? | Sodium: Na+ Chloride: Cl- Potassium: K+ Calcium: Ca2+ |
| What are the 3 steps to gene expression? | 1. Transcription: DNA → mRNA 2. Translation: mRNA → amino acid 3. Post-translational processing: packaging and shipping of amino acid |
| What is histone modification? | Addition of acetyl groups to histones done to facilitate transcription of a gene (acetylation) |
| What is DNA methylation? | Addition of methyl groups to nucleotides of DNA in promoter region done to reduce transcription of the gene (methylation) |
| ↓Acetylation + ↑Methylation = ? | ↓Transcription |
| ↑Acetylation + ↓Methylation = ? | ↑Transcription |
| What are the basic components of a neuron? | Cell body Dendrites Initial Segment Axon Terminal Buttons |
| Brain changes as a result of _____ . | Behavior |
| 1. Cell membrane 2. Nucleus 3. Mitochondria 4. Cytoplasm 5. Rough endoplasmic reticulum 6. Smooth endoplasmic reticulum 7. Ribosomes 8. Golgi body | |
| What are the functions of proteins? | Antibody Enzyme Messenger Structure & support Transport & Storage |
| What is the function of mitochondria? | Producing energy & ATP |
| What is the function of the nucleus? | Storing DNA Involved in creating genes |
| What is the function of the cell membrane? | Holding the parts of the cell inside Maintaining an environment inside that is different from the outside of the cell |
| What is cytoplasm? | Intracellular fluid |
| What is the function of rough endoplasmic reticulum? What makes it "rough"? | Synthesizing and packaging proteins "Rough" due to ribosomes |
| What is the function of smooth endoplasmic reticulum? | Creating and storing lipids |
| What is the function of the Golgi apparatus? | Filtering and transporting molecules |
| What was Rosenzweig's finding in his experiment using rats? | Brain development is affected by experiences Rats who developed in an enriched environment developed thicker cortices than those who developed in an impoverished environment |
| What happened to the pepper moths? How does this reflect natural selection? | White majority because they blended with the trees better. After IR, dark thrived better because of ash and soot on trees. Soot cleaned, pop. returned to normal. Shows genetic variability: pop. needs to be able to change with environment or it will die. |
| What is a histone? | A protein that holds DNA & organizes chromosomes by wrapping around them |
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