AP bio MIDterm 2/4

Question 1

If 14 C-labeled uridine triphosphate is added to the growth medium of cells, what macromolecules will be labeled?

Question 2

If a DNA sample were composed of 10% thymine, what would be the percentage of guanine?

Question 3

A double-stranded DNA molecule contains a total of 120 purines and 120 pyrimidines. This DNA molecule could be composed of

Question 4

If one strand of a DNA molecule has the sequence of basses 5’ATTGCA3’, the other complementary strand would have the sequence

Question 5

Which of the following is an example of hydrolysis?

Question 6

If cells are grown in a medium containing radioactive 32P-labeled phosphate, which of these molecules will be labeled?

Question 7

If cells are grown in a medium containing radioactive 15N which of these molecules will be labeled?

Question 8

Which of the following statements is/are true regarding the chemical reaction illustrated in Figure 5.5?

Question 9

The molecular formula for glucose is C6H12)6. What would be the molecular formula for a polymer made by linking ten glucose molecules together by dehydration reactions?

Question 10

All of the following are part of a prokaryotic cell except

Question 11

The volume enclosed by the plasma membrane of planet cells is other much larger than the corresponding volume in animal cells. The most reasonable explanation for this observation is that

Question 12

Which of the following is a major cause of the size limits for certain types of cells?

Question 13

The evolution of eukaryotic cells most likely involved

Question 14

A cell with a predominance of free ribosomes is most likely

Question 15

Which type of organelle or structure is primarily involved in the synthesis of oil, phospholipids, and steriods

Question 15

Which type of organelle or structure is primarily involved in the synthesis of oil,

Question 16

Which structure is the site of synthesis of proteins that may be exported from the cell?

Question 17

TheGolgi apparatus for polarity or sadness to its structure and function. Which of the following statements correctly describes this polarity?

Question 18

The difference in lipid and protein composition between the membranes of the Endo membrane system is largely determined by

Question 19

Hydrologic enzymes must be segregated and packaged to prevent general destruction of cellular components. Which of the following organelles contains these hydrolytic enzymes in animal cells?

Question 20

Which organelle is the primary sit of ATP synthesis in eukaryotic cells?

Question 21

Which plant cell organelle contains its own DNA and ribosomes?

Question 22

Thyroids, DNA and ribosomes are all components found in

Question 23

On of the key innovations in the evolution of eukaryotes from a prokaryotic ancestor is the e dome brand system. What eukaryotic organelles or features might have evolved as a part of the endomembrane system?

Question 24

A cell has the following molecules and structures: enzymes, DNA, ribosomes, plasma membrane, and a mitochondria. It could be a cell from