What is true about the structure or function of the plasma membrane? large molecules often cross the plasma membrane while inside vesicles. hydrophobic molecules keep the cell from getting too much water. the bilayer structure forms a solid boundary that separates the cell from its environment. it is made entirely of integral proteins.

The specific heat of ice is 0.5 calories/gram°c. 20 grams of ice will require ll calories to raise the temperature 1°c. 05

The activity of the modern sample is 1.10 bq . how long does that measurement take?

Which of these is true of the cytoplasm of an unfertilized egg? a. it is an unevenly distributed mixture of mrna, proteins, organelles, and other substances. b. it does not contain substances that are important in directing development. c. these substances are supplied by the sperm. d. it does not contain substances that are important in directing development. e. development is directed solely by the surrounding cells. f. it is a homogeneous mixture of mrna, proteins, organelles, and other substances. g. it does not contain substances that are important in directing development. h. these substances are produced by the dna of the fertilized zygote.