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Q1. Why water is known as polar solvent? How is hydrogen bonding involved in cohesive attraction of water molecules? Water molecules also attract other sorts of molecules, particulary ions.Why is this?
Q2. A scientist produces an artificial membrane from phospholipids and notices that oxygen, but not glucose readily moves through membrane. What could account for the inability of glucose to move through artificial membrane?
Q3. Scientist is studying bacteria discovered on sea floor. In the nonexistence of light, these bacteria can use organic molecules (including human waste) to generate electricity. What mode of nutrition these bacteria probably use?
Action potentials are usually generated at axon hillock and propagated down axon away from the cell body. If you experimentally depolarized an axon to the threshold level at a point halfway down the axon, what would happen.
Both endocrine and nervous system are major regulating system of the body; but nervous system has been compared to an airmail delivery system and the endocrine to pony express. Briefly explain the comparison.
Summarize the climate changes that have occurred from the past to the present. The masses of the sedimentary rock, the metamorphic rock, and the igneous rock are same.
The sequence of the cloned DNA and the amino acids encoded by open reading frames. Stop codons are underlined and labelled 2 or 3 to indicate their reading frame.
Why was the discovery of microsphere and coacervates an important contribution to understanding of how life might have originated on earth .
Protein classification schemes
Explain the main types of extracellular signaling.
What other diseases are thought to be caused by the point mutations? What do point mutations do in those diseases.
Compare and difference wave summation with recruitme nt. How are they similar? Describe how wave summation and recruitment are achieved in the body.
About how long at the earliest is it likely to take before he gets feeling back in that part of thumb. Give two reasons that the wolf population is not at Hardy-Weinberg equilibrium.
Explain how this classification scheme presents different conclusions about the relationships among living organisms than those presented by the previous five-kingdom system of classification.
In maize, a dominant allele (A) is essential for seed color as opposed to colorless (a). Another gene has a recessive allele (w) which results in waxy starch, as opposed to normal starch (W).
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