Question 1

What are cells?

Accepted Answer

the basic unit of all living things

Question 2

What is homeostasis?

Accepted Answer

The process of maintaining a constant internal environment

Question 3

What is a clone?

Accepted Answer

An identical copy of another organism

Question 4

What is evolution?

Accepted Answer

A theory that states that change occurs over time

Question 5

What are carbohydrates?

Accepted Answer

Made of monosaccharides and function by providing energy

Question 6

What is the cell wall?

Accepted Answer

A rigid, protective outer layer that surrounds the cell membrane

Question 7

What is the basic unit of life?

Accepted Answer

Cell

Question 8

Which organelle is the "powerhouse" of the cell?

Accepted Answer

Mitochondria

Question 9

What structure controls what enters and leaves the cell?

Accepted Answer

cell membrane

Question 10

Where does protein synthesis occur?

Accepted Answer

Ribosomes

Question 11

Which organelle contains DNA?

Accepted Answer

Nucleus

Question 12

Which cells have a cell wall?

Accepted Answer

Plant Cells

Question 13

Which organelle is responsible for photosynthesis?

Accepted Answer

Chloroplast

Question 14

What is the jelly-like fluid inside the cell?

Accepted Answer

Cytosol

Question 15

Which molecule makes up most of the cell membrane?

Accepted Answer

phospholipid

Question 16

What is osmosis?

Accepted Answer

Water diffusion

Question 17

What does DNA stand for?

Accepted Answer

Deoxyribonucleic Acid

Question 18

What shape is DNA?

Accepted Answer

double helix

Question 19

What bases pair together?

Accepted Answer

A-T, C-G

Question 20

What is a gene?

Accepted Answer

a DNA segment coding for a trait

Question 21

Humans have how many chromosomes?

Accepted Answer

46

Question 22

What is the process of making mRNA from DNA?

Accepted Answer

Transcription

Question 23

A Punnett square predicts:

Accepted Answer

trait inheritance

Question 24

A dominant allele is represented by:

Accepted Answer

uppercase letter

Question 25

A mutation is

Accepted Answer

change in DNA sequence

Question 26

Which process produces gametes?

Accepted Answer

meiosis

Question 27

Which molecule is the cell's main energy source?

Accepted Answer

ATP

Question 28

Enzymes are made of:

Accepted Answer

Proteins

Question 29

Enzymes work by:

Accepted Answer

Lowering activation energy

Question 30

Which macromolecules stores genetic info?

Accepted Answer

Nucleic Acid

Question 31

Lipids are used for:

Accepted Answer

Long term energy storage

Question 32

Which is NOT an element in carbohydrates?

Accepted Answer

Nitrogen

Question 33

Amino acids are the building blocks of:

Accepted Answer

Proteins

Question 34

What is the universal solvent?

Accepted Answer

Water

Question 35

pH<7 means that the substance is

Accepted Answer

acidic

Question 36

What type of bond holds water molecules together?

Accepted Answer

hydrogen

Question 37

Who proposed natural selection?

Accepted Answer

Darwin

Question 38

Natural selection means:

Accepted Answer

best-fit organisms survive and reproduce

Question 39

Fossils provide evidence for:

Accepted Answer

evolution

Question 40

The student of evolutionary relationships is:

Accepted Answer

phylogeny

Question 41

What causes genetic variation?

Accepted Answer

Meiosis and mutation

Question 42

Speciation occurs when:

Accepted Answer

species split into new species

Question 43

Homologous structures suggest:

Accepted Answer

Common ancestry

Question 44

The smallest unit that can evolve is:

Accepted Answer

Population

Question 45

What is ecology?

Accepted Answer

study of organisms and their environment

Question 46

A group of the same species is a:

Accepted Answer

population

Question 47

Producers are organisms that:

Accepted Answer

make their own food

Question 48

What is the main energy source for most ecosystems?

Accepted Answer

Sunlight

Question 49

A food chain always starts with a:

Accepted Answer

Producer

Question 50

Which gas do plants take in?

Accepted Answer

CO2

Question 51

Which organism breaks down dead matter?

Accepted Answer

Decomposer

Question 52

Carrying capacity is:

Accepted Answer

Max population an environment can support

Question 53

Global warming is mainly caused by:

Accepted Answer

CO2 increase

Question 54

Symbiosis where both organisms benefit:

Accepted Answer

Mutualism

Question 55

Bacteria are:

Accepted Answer

Prokaryotes

Question 56

Viruses require what to reproduce?

Accepted Answer

Host cell

Question 57

What is an antibiotic used for?

Accepted Answer

Bacterial Infections

Question 58

Yeast is a type of:

Accepted Answer

Fungus

Question 59

Which disease is caused by a virus?

Accepted Answer

COVID-19

Question 60

What shape are cocci bacteria?

Accepted Answer

Spheres

Question 61

What does antibiotic resistance mean?

Accepted Answer

Bacteria evolve to survive antibitoics

Question 62

Vaccines work by:

Accepted Answer

Training immune system

Question 63

The microbiome mainly lives in the

Accepted Answer

gut

Question 64

The largest organ in the body is:

Accepted Answer

skin

100 Basic Science Trivia Questions & Answers (multiple-choice quiz)

2) What is homeostasis?

3) What is a clone?

4) What is evolution?

5) What are carbohydrates?

6) What is the cell wall?

7) What is the basic unit of life?

8) Which organelle is the "powerhouse" of the cell?

9) What structure controls what enters and leaves the cell?

10) Where does protein synthesis occur?

11) Which organelle contains DNA?

12) Which cells have a cell wall?

13) Which organelle is responsible for photosynthesis?

14) What is the jelly-like fluid inside the cell?

15) Which molecule makes up most of the cell membrane?

16) What is osmosis?

17) What does DNA stand for?

18) What shape is DNA?

19) What bases pair together?

20) What is a gene?

21) Humans have how many chromosomes?

22) What is the process of making mRNA from DNA?

23) A Punnett square predicts:

24) A dominant allele is represented by:

25) A mutation is

26) Which process produces gametes?

27) Which molecule is the cell's main energy source?

28) Enzymes are made of:

29) Enzymes work by:

30) Which macromolecules stores genetic info?

31) Lipids are used for:

32) Which is NOT an element in carbohydrates?

33) Amino acids are the building blocks of:

34) What is the universal solvent?

35) pH<7 means that the substance is

36) What type of bond holds water molecules together?

37) Who proposed natural selection?

38) Natural selection means:

39) Fossils provide evidence for:

40) The student of evolutionary relationships is:

41) What causes genetic variation?

42) Speciation occurs when:

43) Homologous structures suggest:

44) The smallest unit that can evolve is:

45) What is ecology?

46) A group of the same species is a:

47) Producers are organisms that:

48) What is the main energy source for most ecosystems?

49) A food chain always starts with a:

50) Which gas do plants take in?

51) Which organism breaks down dead matter?

52) Carrying capacity is:

53) Global warming is mainly caused by:

54) Symbiosis where both organisms benefit:

55) Bacteria are:

56) Viruses require what to reproduce?

57) What is an antibiotic used for?

58) Yeast is a type of:

59) Which disease is caused by a virus?

60) What shape are cocci bacteria?

61) What does antibiotic resistance mean?

62) Vaccines work by:

63) The microbiome mainly lives in the

64) The largest organ in the body is:

65) Which system transports blood?

66) The brain and spinal cord belong to the:

67) Which organ detoxifies chemicals?

68) Which blood cells fight infection?

69) What do red blood cells carry?

70) Where does gas exchange occur in the lungs?

71) The basic unit of the nervous system is the:

72) Which nutrient is the body's first source of energy?

73) Which organ produces insulin?

74) Which pigment captures sunlight?

75) Plants lose water through:

76) Xylem transports:

77) What part of the plant makes food?

78) Which organ is responsible for filtering blood to form urine?

79) Which part of the brain controls balance and coordination?

80) Which type of muscle is involuntary and found in organs?