Animal cells are permeable to water and urea but NOT to sucrose. The inside of a cell contains 1 M sucrose and 1 M urea and the outside 1 M sucrose and 2 M urea. The solution inside with respect to outside the cell is
A. hypotonic.
B. turgid.
C. isotonic.
D. saturated.
E. hypertonic.
A. hypotonic.
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The electronic configuration of the noble gas Neon, which has an atomic number of 10, can be written as follows: 1s22s22p6 . What is the electronic configuration of the noble gas Argon, which has an atomic number of 18?
A. 1s22s22p63s23p6 B. 1s22s62p23s63p2 C. 1s22s83p8 D. 1s22s23p64s25p6
The regions retained in finished mRNA transcripts after pre-mRNA processing are called ____
a. spliceosomes b. snRNPs c. exons d. domains e. introns
Which process is exemplified by the opening of flowers in the late afternoon in the aptly named four-o’clock plant (Mirabilis jalapa)?
1.Circadian rhythm 2.Nasticity 3.Photoperiodism 4.Vernalization
For which of the following set of variables,a chi square test should be applied?
A. Either dependent or independent variable is a discrete variable. B. Discrete dependent variable and continuous independent variable C. Both dependent and independent variables are discrete variables. D. Discrete independent variable and continuous dependent variable.