What charge will the hydrogen have in a water molecule?
a. Strongly negative
b. Slightly negative
c. Neutral
d. Slightly positive
e. Strongly positive
d
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If the cell was a cube and you doubled the height, width, and length of the cell, how much would the surface area increase?
Cells come in a range of sizes, and a variety of shapes. Assuming a cell type has a conservative cube shape, it may have limits to size, because of the need of materials to diffuse into or out of the cell through the surface area of the cell membrane. Calculate the numerical changes of a cube-shaped cell from an original size of 10 ?m × 10 ?m × 10 ?m. A. 8-fold B. It would stay the same. C. 4-fold D. 2-fold E. 6-fold
Which of the following would NOT be a function of bone?
a. movement of the body b. support c. hormone secretion d. mineral storage e. blood cell formation
The site on the surface of an enzyme where a substrate binds is called the:
A. active site B. allosteric site C. binding site D. reactive site
Which of the following is one of the hallmarks of a cell?
A. Presence of Cell Wall B. Presence of Nucleus C. Extra-Cellular Living D. Self replicating