Cells and organisms / organic molecules

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Fundamental difference between eukaryotic and prokaryotic cells?
Eukaryotic cells have membrane-bound organelles; prokaryotes do not. Also prokaryotic cells store DNA either in a nucleoid (single, circular chromosome), or as plasmid DNA,, instead of in a nucleus.
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Which thing is not exclusive to plant cells?
Cell membrane comprised of a phospholipid bilayer
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Name of the flat sac with vesicles budding off the end; used for packaging chemicals in secretion vesicles and sending them off to the cell membrane.
Golgi apparatus/ body
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Name of the series of folded phospholipid membranes that are rough or smooth, depending on whether they have embedded ribosomes or are for the synthesis of lipids.
Endoplasmic reticula
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Name of thing that stores highly condensed DNA around histone proteins; messenger RNA comes out of its little pores and nucleotides go in. It is equipped with a nucleolus in which RNA and ribosomes are manufactured.
Nucleus
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Name of thing that enables the reading of mRNA and the building of protein through interaction of tRNA with amino acids to form polypeptide chains.
Ribosomes
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The site of all metabolic reactions in prokaryotic cells?
Cytoplasm
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What is indicated about a cell wall if it is Gram positive?
It is big enough to absorb a lot of Gram stain
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What quality do Svedberg units measure, and about which organelle?
Extent to which ribosomes can be centrifuged.
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Which job is not something provided by a bacterial cell’s capsule
Aiding movement through various mediums.
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Things used by bacterial cell to swim around and to adhere to surfaces like host cell membranes.
Flagella and fimbriae
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What is the sole purpose of variation in viral shape?
Ensuring that virus can get into specific target cell.
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In cell signalling, how could you describe the channel that runs between the connexons (or transmembrane proteins complexes) of two adjacent cells?
Hydrophilic
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In cell signalling, matching protuberant molecules and receptors on corresponding cells serves which purpose?
Recognition
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If endocrine is the long distance intercellular signalling using hormones, what is paracrine?
Local cell signalling
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In microscopy, what is the equation ‘size of image divided by size of object’?
Magnification
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In microscopy, what is the equation ‘objective magnification x eyepiece magnification?
Overall magnification
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In microscopy, what is the limitation of electron microscopes, and why is it the case?
Specimens must be dead, because electron beam is v. intense, and also due to necessity of the vacuum. When things die their structures can change, so application of findings is limited.
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Other cards in this set

Card 2

Front

Which thing is not exclusive to plant cells?

Back

Cell membrane comprised of a phospholipid bilayer

Card 3

Front

Name of the flat sac with vesicles budding off the end; used for packaging chemicals in secretion vesicles and sending them off to the cell membrane.

Back

Preview of the front of card 3

Card 4

Front

Name of the series of folded phospholipid membranes that are rough or smooth, depending on whether they have embedded ribosomes or are for the synthesis of lipids.

Back

Preview of the front of card 4

Card 5

Front

Name of thing that stores highly condensed DNA around histone proteins; messenger RNA comes out of its little pores and nucleotides go in. It is equipped with a nucleolus in which RNA and ribosomes are manufactured.

Back

Preview of the front of card 5
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