Classify each of the following proteins according to its function:

d. amylases that catalyze the hydrolysis of starch

Choose the best answer. Which is NOT a macromolecule? (a) carbohydrates (b) nucleic acids (c) organelles (d) proteins

How much work does it take to move a $50~\mu \mathrm{C}$ charge against a $12~\mathrm{V}$ potential difference?

How much work must be done on a proton to accelerate it from rest to a) $0.100 c$ ? b) $0.500 c$ ? c) $0.900 c$ ?

A spectrometer is a tool astronomers find very useful. a. How does it work? b. What information can an astronomer find using a spectrometer?

Defensive proteins are manufactured by the _____ system?

A. digestive

B. cardiovascular

C. integumentary

D. nervous

E. immune

Which of the following is not associated with every virus?

• spike proteins
• capsomeres
• nucleic acid
• nucleocapsid
• capsid

From 1997 to 2002, the number n (in millions) of DVD players sold in the United States can be modeled by

$$n = 0.42(2.47)^t$$

where t is the number of years since 1997. Graph the function. Estimate the number of DVD players sold in 2001.

BUSINESS: Learning Curves in Airplane Production Recall (pages 27-28) that the learning curve for the production of Boeing 707 airplanes is $150 n^{-0.322}$ (thousand work-hours). Find how many work-hours it took to build: The 50th Boeing 707 .

a) The convenience of shopping on the Web combined with high-speed broadband access services are spurring online spending. The following data gives the projected online spending per buyer (in dollars) from 2002 (x = 0) through 2008 (x = 6): (0,501), (1, 540), (2, 585), (3, 631), (4, 680), (5, 728), (6, 779). Find an equation of the least-squares line for these data. b) The convenience of shopping on the Web combined with high-speed broadband access services are spurring online spending. The following data gives the projected online spending per buyer (in dollars) from 2002 (x = 0) through 2008 (x = 6): (0,501), (1, 540), (2, 585), (3, 631), (4, 680), (5, 728), (6, 779). Use the equation for the least-squares line to estimate the rate of change of spending per buyer between 2002 and 2008.

Cells that form a tissue are held together by

a) Carbohydrates.
b) Nucleic Acids.
c) Proteins.
d) Lipids.

Use the commutative andlor associative laws to write two equivalent expressions. Answers may vary. \

$$(17a)b$$

Model Reggie earned $\$ 360$ in the summer. If he earned $\$ 40$ per week. how many weeks did he work?

Use the Laws of Logarithms to combine the following expression.

$$\log _4 6+2 \log _4 7$$