Q: Which of the following is the correct formula to convert Fahrenheit to Celsius?

$C = (F - 32) \times \frac{5}{9}$

Q: Which of the following is a correct conversion from liters to milliliters?

$1 \text{ L} = 1000 \text{ mL}$

Question 1

Which of the following best describes the independent variable in a scientific experiment?

Accepted Answer

The variable that the experimenter deliberately changes or manipulates.

Question 2

A student wants to test how the amount of sunlight affects the growth rate of a plant. What is the dependent variable in this experiment?

Accepted Answer

The growth rate of the plant.

Question 3

Which of the following is the correct formula to convert Celsius to Kelvin?

Accepted Answer

$K = C + 273$

Question 4

If a scientist measures a temperature of 25°C, what is the temperature in Kelvin?

Accepted Answer

$298 	ext{ K}$

Question 5

Which of the following is the correct formula to convert Fahrenheit to Celsius?

Accepted Answer

$C = (F - 32) 	imes \frac{5}{9}$

Question 6

A sample weighs 5000 milligrams. What is its mass in grams?

Accepted Answer

$5 	ext{ g}$

Question 7

Which of the following best describes 'accuracy' in scientific measurement?

Accepted Answer

How close a measurement is to the accepted or true value.

Question 8

A scientist records the following measurements for the mass of a sample: 2.01 g, 2.00 g, 2.02 g. The accepted value is 2.50 g. Which statement is true?

Accepted Answer

The measurements are precise but not accurate.

Question 9

Which of the following is NOT a recommended lab safety practice?

Accepted Answer

Eating and drinking in the laboratory.

Question 10

You are using a microscope with a 10x ocular lens and a 40x objective lens. What is the total magnification?

Accepted Answer

$400 	imes$

Question 11

Which of the following is the correct formula for pH?

Accepted Answer

$pH = -\log [H^+]$

Question 12

Which statement about enzymes is TRUE?

Accepted Answer

Enzymes lower the activation energy required for reactions.

Question 13

A cell is placed in a hypertonic solution. What will happen to the cell?

Accepted Answer

Water will move out of the cell and it will shrink.

Question 14

Which process describes the movement of water across a cell membrane?

Accepted Answer

Osmosis

Question 15

Which of the following is a characteristic of passive transport?

Accepted Answer

Moves substances from high to low concentration.

Question 16

Which organelle is responsible for energy production in eukaryotic cells?

Accepted Answer

Mitochondria

Question 17

Which of the following statements about prokaryotes is TRUE?

Accepted Answer

Prokaryotes lack membrane-bound organelles.

Question 18

Which of the following is a correct conversion from liters to milliliters?

Accepted Answer

$1 	ext{ L} = 1000 	ext{ mL}$

Question 19

Which of the following is a function of the cell membrane?

Accepted Answer

Regulating the movement of substances into and out of the cell

BIO 101 Midterm Practical Review: Lab Safety, Measurement, and Scientific Method

Study Guide - Practice Questions

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