Question 1

Which of the following best describes the role of the control group in a scientific experiment?

Accepted Answer

It is the group that receives no treatment and is used as a baseline for comparison.

Question 2

Water is considered a 'universal solvent.' Which property of water allows it to dissolve many substances?

Accepted Answer

Its polarity, which allows it to interact with charged and polar molecules

Question 3

A scientist is testing the effect of pH on enzyme activity. What is the independent variable in this experiment?

Accepted Answer

The pH level of the solution

Question 4

Which type of chemical bond is responsible for holding the two strands of DNA together?

Accepted Answer

Hydrogen bonds

Question 5

Which macromolecule is primarily responsible for short-term energy storage in cells?

Accepted Answer

Carbohydrate

Question 6

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

Accepted Answer

Water will move out of the cell, causing it to shrink.

Question 7

Which of the following statements about enzymes is correct?

Accepted Answer

Enzymes lower the activation energy required for a chemical reaction.

Question 8

Which organelle is responsible for packaging and shipping cell materials?

Accepted Answer

Golgi apparatus

Question 9

Which of the following is NOT found in prokaryotic cells?

Accepted Answer

Nucleus

Question 10

Which property of water allows insects to walk on its surface?

Accepted Answer

Surface tension due to cohesion

Question 11

Which of the following best explains why ice floats on water?

Accepted Answer

Ice is less dense than liquid water because of hydrogen bonding.

Question 12

Which macromolecule contains the genetic information of the cell?

Accepted Answer

Nucleic acid

Question 13

Which part of the phospholipid bilayer is hydrophilic?

Accepted Answer

The phosphate head

Question 14

Which process moves substances from low to high concentration and requires energy?

Accepted Answer

Active transport

Question 15

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

Accepted Answer

Forming channels for transport

Question 16

Which statement correctly compares prokaryotic and eukaryotic cells?

Accepted Answer

Eukaryotic cells have a nucleus, prokaryotic cells do not.

Question 17

Which of the following is a monomer of carbohydrates?

Accepted Answer

Monosaccharide

Question 18

A cell is placed in an isotonic solution. What will happen to the cell?

Accepted Answer

Water will move equally in and out, and the cell will remain the same size.

Question 19

Which organelle is the site of cellular respiration in eukaryotic cells?

Accepted Answer

Mitochondrion

Question 20

Which of the following best describes the function of lysosomes in animal cells?

Accepted Answer

Breaks down old cell parts and waste

BIO 101 Test 1 Review: General Biology Study Notes

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