Biology T2

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1.
1 point
Plasmodesmata in plant cells are most similar in function to which of the following structures in animal cells?
2.
1 point
All of the following are associated with the extracellular matrix of animal cells except
3.
1 point
Which of the following is true regarding catabolic pathways?
4.
1 point
Which of the following is part of the first law of thermodynamics?
5.
1 point
Metabolism is best described as
6.
1 point
Which of the following is not found in a prokaryotic cell?
7.
1 point
A change in a protein's three-dimensional shape or conformation due to disruption of hydrogen bonds, disulfide bridges, and ionic bonds is termed
8.
1 point
Whenever energy is transformed, there is always an increase in the
9.
1 point
Which of the following best describes the relationship between proteins, RNA, DNA, and genes in humans?
10.
1 point
Why is ATP an important molecule in metabolism?
11.
1 point
Which of the following are prokaryotic cells?
12.
1 point
What would be an expected consequence of changing one amino acid in a particular protein?
13.
1 point
Grana, thylakoids, and stroma are all components found in
14.
1 point
What best describes a chloroplast
15.
1 point
According to the second law of thermodynamics, all of the following statements are true except that
16.
1 point
All of the following bases are found in DNA except
17.
1 point
What best describes a nucleolus
18.
1 point
According to the induced fit hypothesis of enzyme function, which of the following is correct?
19.
1 point
In the double-helix structure of nucleic acids, cytosine hydrogen bonds to
20.
1 point
When glucose monomers are joined together by glycosidic linkages to form a cellulose polymer, the changes in free energy, total energy, and entrophy are as follows
21.
1 point
Which of the following is true for exergonic reactions?
22.
1 point
How can one increase the rate of a chemical reaction?
23.
1 point
An enzyme accelerates a metabolic reaction by
24.
1 point
Which of the following is capable of converting light energy to chemical energy?
25.
1 point
Which of the following are nitrogen bases of the pyrimidine type?
26.
1 point
Which of the following pairs is mismatched?
27.
1 point
Which of the following reactions could be coupled to the reaction ATP + H2O →ADP + Pi (-7.3 kcal/mol)?
28.
1 point
Of the following, what do both mitochondria and chloroplasts have in common?
29.
1 point
If one strand of a DNA molecule has the sequence of bases ATTGCA, the other complementary strand would have the sequence
30.
1 point
The R group or side chain of the amino acid serine is -CH2-OH (hydrophilic). The R group or side chain of the amino acid alanine is -CH3 (hydrophobic) Where would you expect to find these amino acids in globular protein in aqueous solution?
31.
1 point
What structure is often deposited in several laminated layers and has a strong and durable matrix that affords the cells protection and support?
32.
1 point
Molecules capable of interacting must first overcome a thermodynamic barrier known as the reaction's
33.
1 point
In the reaction A → B + C + heat,
34.
1 point
What best describes a mitochondrion
35.
1 point
Some bacteria are metabolically active in hot springs because
36.
1 point
What best describes a lysosome
37.
1 point
Which of the following contain the 9 + 2 arrangement of microtubules?
38.
1 point
What best describes a centriole
39.
1 point
What maintains the secondary structure of a protein?