Question

choose the best pipette option to accurately transfer each volume of liquid.

1. 835 ul

a. p2
b. p20
c. p200
d. p1000

1. 35.5 ul

a. p2
b. p20
c. p200
d. p1000

1. 12 ul

a. p2
b. p20
c. p200
d. p1000

1. 187 ul

a. p2
b. p20
c. p200
d. p1000

1. 1000 ul

a. p2
b. p20
c. p200
d. p1000

1. 2.45 ul

a. p2
b. p20
c. p200

Explanation:

To solve this, we need to know the typical volume ranges of each pipette:

• \( P2 \): Usually for very small volumes (e.g., \( 0.2 - 2 \, \mu L \))
• \( P20 \): For small volumes (e.g., \( 2 - 20 \, \mu L \))
• \( P200 \): For medium volumes (e.g., \( 20 - 200 \, \mu L \))
• \( P1000 \): For larger volumes (e.g., \( 100 - 1000 \, \mu L \))

1. \( 835 \, \mu L \)

Step1: Check pipette ranges. \( P1000 \) handles up to \( 1000 \, \mu L \), suitable for \( 835 \, \mu L \).

Answer:

d. \( P1000 \)

2. \( 35.5 \, \mu L \)

Step1: \( P200 \) handles \( 20 - 200 \, \mu L \), \( 35.5 \) is within this range.