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BIO201 lab 1

Lab midterm

QuestionAnswer
Positive for reducing sugars is reddish-orange. Positive control is reducing sugar solution. Benedicts test
Positive for starch is blue or black. Positive control is starch solution. Iodine test
Postive for protein is purple. Positive control is biuret reagant. Biuret test
Looks like a splatter, NO cell wall, has a cell membrane and uses locomotion to move around. Amoeba
Uses it's cells or hairlike structures to move around. Paramecium
Has a rectangular shape. Plant cell
Looks like a green oval. Chloroplast
What are the cyanobacteria cells(blue green algae). Oscillatoria and Gloecapsa
Gloecapsa is? Loosely arranged
Oscillatoria is? Filaments in cells
Movement of membranes from high concentration to low concentration? Diffusion
The diffusion (from high to low concentration) of water across a membrane? Osmosis
Iodine and startch, the iodine was able to seep into the bag but starch was unable to seep out. (brown and purple) Diffusion procedure (starch and iodine)
Phenolphthalein was able to seep out into the sodium hydroxide which caused the sodium hydroxide solution to turn pink to. Diffusion procedure (Sodium hydroxide and phenolphthalein
Contains 1% sucrose in 25% sucrose. Weight decreases and Hypotonic BAG A
Contains 1% solution in 1% solution. Weight stays the same and Isotonic BAG B
Contains 10% and contains 25% sucrose in 1% sucrose. Weight increases and Hypertonic BAG C and BAG D
Plasmolysis of plant cells is? Hypertonic
Requires oxygen to oxidize pyruvate to CO2 through the krebs cycle? Aerobic respiration
Does not require oxygen, yeast oxidizes to ethanol and releases CO2. Anaerobic respiration
Differences between plant and animal cells? Plant cells have cell walls, chloroplasts and central vacuoles. Animal cells have NON central vacuoles.
Animal cells are flat compared to ? plant cells.
Rectangular, nuclei(can be seen), nuclei is larger than the chloroplast? Plant cell.
No nuclear envelope, DNA is located in the nucleoid region. chromosomes are circular, no membranes, well wall is present, unicellular. Prokaryotes.
nuclear envelope, Dna located in nucleus, chromosomes(many linear ones), membranes are present, multicellular. Eukaryotes.
Created by: 1375282827
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