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29 Cards in this Set
- Front
- Back
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What is Cell Theory? |
All living things are composed of cells and all cells come from earlier cells |
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What is Cytoplasm? |
Thick, jellylike fluid that occupies space in the interior of a cell |
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What are organelles? |
Membrane-enclosed structures that perform specific functions |
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Name the three structures found in a plant cell that animal cells don't have |
Centralvacuole, Cell wall, Chloroplast |
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What does the term "fluid mosaic" mean when describing the structure of a membrane? |
Fluid: Move freely past one another (molecules) Mosaic: The diversity of protiens and cholesteral |
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True or false? Eukaryotes appeared on Earth before prokaryotes. |
False |
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Name four structures found in both prokaryotic and eukaryotic cells? |
Plasma Membrane, Cytoplasmalcytosol, Chromosomes, and Ribosomes. |
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How is the nucleoid region of a prokaryotic cell different from the nucleus of a eukaryotic cell? |
There is no membrane enclosing the prokaryote nucleoid region and eukaryotic cells have a membrane-bound organelle. |
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What is nucleolus? |
Site where the components of ribosomes are made.Wh |
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What is the Golgi Apparatus? |
Receives, refines, stores, and distributes chemical products of the cell. |
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What are ribosomes? |
Organelles responsible for protein synthesis. |
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What is a nucleus? |
Control cnter of the cell that houses most of a eukaryotic cell's DNAW |
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What are Versicles? |
Large sacs made of membrane that bud off from the ER or Golgi apparatus. |
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True or false? Each long chromatin fiber constitutes one chromosome. |
True |
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_______ endoplasmic reticulum contains ribosomes and mainly manufactures membrane. |
Rough |
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______ endoplasmic reticulum doesn't contain ribosomes and mainly manufactures lipids. |
Smooth |
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What are the five organelles that make up teh endomembrane system? |
Nuclear Envelope, Endoplasmic Recticulum, Golgi Apparotus, Lysosomes, and Vecuoles. |
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What is Transcription? |
The process of making a messenger RNA copy of a DNA |
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What is translation? |
The process of translation the sequence of messenger RNA to a sequence of amion acids during protein synthesis. |
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What is cellular respiration? |
Converting biochemical energy into ATP |
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What is Cilia? |
Short, numerous cell extensions that aid in movement |
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What is antibiotic? |
Drugs that disable or kill infectious bacteria |
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What is a Cytoskeleton? |
A network of protein fibers extending throughout the cytoplasm. |
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What is Cristae? |
Inner membrane in a mitochondrion with numerous infoldings to increase surface area. |
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What is Flagella? |
A cell extension that proles the cell with an undulating, whip-like motion. |
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What is Grana? |
Interconnecteed stacks of disks that trap light energy in a chloroplast. |
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From which important class of biological molecules are the microtubules of the cytoskeleton made? |
Proteins |
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What does photosynthesis accomplish? |
It converts energy from light into food such as sugars and other organic molecules. |
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True or false? A cell's cytoskeleton is dynamic and can dismantle and rearrange itself quickly. |
True. |
