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21 Cards in this Set
- Front
- Back
Photoautotrophs |
Perform photosynthesis; use light energy to make carbon compounds. |
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Chemoautotrophs |
Perform chemosynthesis; Uses chemical energy to make carbon compounds. |
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Chemoheterotrophs |
Use organic molecules for both energy and a carbon source. |
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Photoheterotrophs |
Use sunlight for energy, but consume organic compounds as a compound source. |
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Binary fission |
Asexual reproduction in which the cell replicates its DNA and divides in half, producing two identical daughter cells. |
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Conjugation |
A connecting pills forms between 2 cells and genes move from cell to cell. Creates genetic diversity. |
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Endospore |
Thick internal wall that encloses the DNA and some of the cytoplasm. Helps bacteria to survive harsh for many months. |
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Eubacteria |
More abundant kind if bacteria. Mostly heterotrophs. Live in water, land, and animals. Has 2 cell membranes. |
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Archaebacteria |
Have different lipids in cell membrane. Found in harsh, hot salty environments. Acidic hot springs, volcanic vents. Thick mud. |
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Methanogens |
Anaerobic environments. Get energy by changing H2 into CO2 into methane gas (CH4). Swamps, sewage, digestive tracts. |
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Difference between Eubacteria and Archaebacteria |
Archaebacteria lack peptidoglycan. Gram stain will be dark if peptidoglycan is present. |
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How to identify prokaryotes |
Shape, cell wall composition, movement, obtaining energy. |
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Endomembrane system |
Nuclear envelope, endoplasmic reticulum, golgi apparatus, lysosomes,vacuoles, plasma membrane. |
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Inner membrane of mitochondria |
Folds up and where chemical reactions take place. |
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Peripheral proteins |
Bound to the surface of the membrane |
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Integral proteins |
Penetrate hydrophobic core |
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Transmembrane protein |
Integral proteins that span the membrane |
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Membrane protein function |
Transport, enzyme activity, signals, cell regulations, joining, attach to cytoskeleton. |
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Smooth Endoplasmic Reticulum |
Contains various enzymes rhat detoxify, synthesize lipids, and metabolize carbohydrates |
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Lysosomes |
Small organelles that contain enzymes that break down organic compounds and organelles that no longer work into energy. (Autophagy) |
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Chromatin |
Genetic material made of DNA bound to protein. |