Cells and Cell Processes: Interactive Quizzes for 8th Grade Science

Question 1

Which organelle is responsible for assembling ribosomes?

Accepted Answer

Nucleolus

Answer

Mitochondria

Answer

Ribosomes

Answer

Golgi apparatus

Question 2

What is the process by which cells divide into two genetically identical daughter cells?

Accepted Answer

Mitosis

Answer

Meiosis

Answer

Binary fission

Answer

Cytokinesis

Question 3

What is the function of lysosomes?

Accepted Answer

To digest cellular waste and foreign materials

Answer

To synthesize lipids

Answer

To modify proteins

Answer

To transport substances across the cell membrane

Question 4

Which process allows cells to release energy by breaking down glucose?

Accepted Answer

Cellular respiration

Answer

Photosynthesis

Answer

Fermentation

Answer

Glycolysis

Question 5

Which organelle is responsible for synthesizing proteins?

Accepted Answer

Ribosome

Answer

Nucleus

Answer

Mitochondria

Answer

Golgi apparatus

Question 6

Which process enables cells to convert glucose into lactic acid without the use of oxygen?

Accepted Answer

Fermentation

Answer

Photosynthesis

Answer

Cellular respiration

Answer

Glycolysis

Question 7

Ribosomes are organelles primarily responsible for which cellular process?

Accepted Answer

Ribosomes

Answer

Mitochondria

Answer

Chloroplast

Answer

Golgi apparatus

Question 8

Which of the following processes generates carbon dioxide as a byproduct?

Accepted Answer

Cellular respiration

Answer

Photosynthesis

Answer

Fermentation

Answer

Glycolysis

Question 9

What is the name of the process by which cells duplicate their genetic material and divide into two new cells?

Accepted Answer

Mitosis

Answer

Meiosis

Answer

Cytokinesis

Answer

Gene expression

Question 10

Which type of cell does not possess a nucleus?

Accepted Answer

Prokaryotic cell

Answer

Eukaryotic cell

Answer

Plant cell

Answer

Animal cell

Question 11

What is the primary function of chloroplasts in plant cells?

Accepted Answer

Photosynthesis

Answer

Protein synthesis

Answer

Cellular respiration

Answer

Waste removal

Question 12

What is the main function of the Golgi apparatus in the cell?

Accepted Answer

Protein modification and packaging

Answer

Lipid synthesis

Answer

Carbohydrate breakdown

Answer

Cellular respiration

Question 13

Which of the following is an example of a chemical change?

Accepted Answer

Burning wood

Answer

Melting ice

Answer

Dissolving sugar in water

Answer

Boiling water

Question 14

What is the primary role of enzymes in cells?

Accepted Answer

To accelerate chemical reactions

Answer

To break down waste products

Answer

To store genetic information

Answer

To produce energy

Question 15

What is the main job of mitochondria in a cell?

Accepted Answer

Making energy for the cell

Answer

Storing DNA

Answer

Making proteins for the cell

Question 16

In plant cells, which organelle is responsible for capturing light energy for photosynthesis?

Accepted Answer

Chloroplasts

Answer

Mitochondria

Answer

Nucleus

Question 17

Which of the following organelles is the site of protein synthesis in cells?

Accepted Answer

Ribosomes

Answer

Mitochondria

Answer

Chloroplasts

Answer

Nucleus

Question 18

What is the fundamental unit of life, the basic building block of all living organisms?

Accepted Answer

Cell

Answer

Atom

Answer

Molecule

Answer

Tissue

Question 19

What is the primary purpose of cell division?

Accepted Answer

Growth, tissue repair, and reproduction

Answer

Exchange of genetic material only

Answer

Nutrient transport exclusively

Answer

Controlling cell activities solely

Question 20

What is the primary function of the cell membrane, the outermost layer of the cell?

Accepted Answer

Transporting materials into and out of the cell

Answer

Providing energy for the cell's activities

Answer

Controlling and regulating the cell's functions

Answer

Storing the cell's genetic information

Question 21

Which organelle is responsible for manufacturing proteins?

Accepted Answer

Ribosomes

Answer

Nucleus

Answer

Mitochondria

Answer

Golgi apparatus

Question 22

In which stage of the cell cycle does DNA duplication take place?

Accepted Answer

Prophase

Answer

Metaphase

Answer

Anaphase

Answer

Telophase

Question 23

Which type of cell lacks a nucleus?

Accepted Answer

Prokaryotic cell

Answer

Plant cell

Answer

Animal cell

Answer

Eukaryotic cell

Question 24

What is the role of enzymes in the process of photosynthesis?

Accepted Answer

To speed up reactions

Answer

To absorb light

Answer

To carry electrons

Answer

To store energy

Question 25

Which of the following is not a unique feature of plant cells?

Accepted Answer

Mitochondria

Answer

Cell wall

Answer

Chloroplasts

Answer

Vacuole

Question 26

What is the final product of cellular respiration?

Accepted Answer

ATP

Answer

Glucose

Answer

Oxygen

Answer

Water

Question 27

Which organelle modifies and packages proteins?

Accepted Answer

Golgi apparatus

Answer

Mitochondria

Answer

Ribosomes

Answer

Nucleus

Question 28

Which of the following organelles is found in all eukaryotic cells except plant cells?

Accepted Answer

Cell wall

Answer

Nucleus

Answer

Ribosomes

Answer

Mitochondria

Question 29

The cell membrane is composed primarily of:

Accepted Answer

Proteins and Lipids

Answer

Carbohydrates

Answer

Lipids

Answer

Nucleic acids

Question 30

Which of the following is NOT a type of passive transport?

Accepted Answer

Endocytosis

Answer

Diffusion

Answer

Osmosis

Answer

Facilitated diffusion

Question 31

The term 'homeostasis' refers to the maintenance of a:

Accepted Answer

Stable internal environment

Answer

Constant cell size

Answer

Balanced pH level

Answer

Specific nutrient concentration

Question 32

Which of the following is the correct sequence of cell division stages in mitosis?

Accepted Answer

Interphase, prophase, metaphase, anaphase, telophase

Answer

Prophase, metaphase, anaphase, telophase, interphase

Answer

Anaphase, telophase, prophase, metaphase, interphase

Answer

Interphase, anaphase, prophase, metaphase, telophase

Question 33

From the following, which is NOT a fundamental principle of cell theory?

Accepted Answer

Cells are capable of arising spontaneously from non-living matter.

Answer

Cells are the fundamental unit of life.

Answer

Every organism is made up of one or more cells.

Question 34

Which cell structure is responsible for protein synthesis?

Accepted Answer

Ribosomes

Answer

Mitochondria

Answer

Chloroplasts

Answer

Golgi apparatus

Question 35

Which cell division process results in two genetically identical daughter cells?

Accepted Answer

Mitosis

Answer

Meiosis

Question 36

What is the primary purpose of photosynthesis?

Accepted Answer

To convert light energy into chemical energy stored in glucose.

Answer

To release carbon dioxide into the atmosphere.

Answer

To break down glucose and release energy.

Question 37

Which of the following is a product of cellular respiration?

Accepted Answer

ATP and carbon dioxide

Answer

Carbon dioxide and water

Answer

Glucose and oxygen

Answer

Chlorophyll and water

Question 38

Which type of cell lacks a nucleus?

Accepted Answer

Prokaryotic

Answer

Eukaryotic

Question 39

What is the function of the Golgi apparatus?

Accepted Answer

To alter, sort, and package proteins.

Answer

To make ribosomes.

Answer

To get rid of waste.

Question 40

Which cellular structure is primarily responsible for protein synthesis?

Accepted Answer

Ribosomes

Answer

Nucleus

Answer

Mitochondria

Answer

Golgi apparatus

Question 41

Which of the following substances is NOT a product of photosynthesis?

Accepted Answer

Carbon dioxide

Answer

Glucose

Answer

Oxygen

Answer

Water

Question 42

What is the name of the universal energy currency used by cells?

Accepted Answer

ATP

Answer

ADP

Answer

NADH

Answer

FADH2

Question 43

Which type of cell division is unique to the production of gametes?

Accepted Answer

Meiosis

Answer

Mitosis

Answer

Binary fission

Answer

Budding

Question 44

What is the primary function of the cell membrane?

Accepted Answer

Regulating the movement of materials into and out of the cell

Answer

Storing genetic information

Answer

Synthesizing proteins

Answer

Generating energy

Question 45

What is the primary role of enzymes in cellular processes?

Accepted Answer

Acting as catalysts to accelerate chemical reactions

Answer

Storing genetic information

Answer

Transporting substances across cell membranes

Answer

Providing energy for cellular activities

Question 46

Which organelle is known as the 'powerhouse of the cell'?

Accepted Answer

Mitochondria

Answer

Chloroplast

Answer

Ribosome

Answer

Lysosome

Question 47

Which of the following is NOT a type of passive transport?

Accepted Answer

Active transport

Answer

Diffusion

Answer

Osmosis

Answer

Faciltated diffusion

Question 48

What is the primary function of photosynthesis?

Accepted Answer

To convert light energy into chemical energy

Answer

To release oxygen into the atmosphere

Answer

To break down glucose for energy

Answer

To synthesize proteins

Question 49

Which type of cell lacks a nucleus?

Accepted Answer

Prokaryotic

Answer

Eukaryotic

Answer

Plant

Answer

Animal

Question 50

What molecule stores genetic information in organisms?

Accepted Answer

DNA

Answer

RNA

Answer

Protein

Answer

Carbohydrate

Question 51

What is the main function of the cell membrane?

Accepted Answer

To control the movement of substances in and out of the cell

Answer

To store genetic information

Answer

To synthesize proteins

Answer

To convert light energy into chemical energy

Question 52

Which characteristic is unique to eukaryotic cells?

Accepted Answer

Presence of a nucleus

Answer

Absence of membrane-bound organelles

Answer

Smaller cell size compared to prokaryotic cells

Answer

Found only in plants

Question 53

Ribosomes are primarily responsible for:

Accepted Answer

Protein synthesis

Answer

Storing genetic information

Answer

Regulating substance movement across the cell membrane

Answer

Converting light energy into chemical energy

Question 54

Which organelle is responsible for assembling and modifying proteins?

Accepted Answer

Golgi apparatus

Answer

Mitochondria

Answer

Ribosome

Answer

Lysosome

Question 55

What is the type of cell division that results in identical daughter cells?

Accepted Answer

Mitosis

Answer

Meiosis

Answer

Binary fission

Answer

Cytokinesis

Question 56

Which type of cell division produces gametes (eggs and sperm cells)?

Accepted Answer

Meiosis

Answer

Mitosis

Answer

Binary fission

Answer

Cell fusion

Question 57

What is the primary energy source used by cells for their activities?

Accepted Answer

Glucose

Answer

Water

Answer

Oxygen

Answer

Amino acids

Question 58

Which process uses sunlight to convert carbon dioxide and water into glucose?

Accepted Answer

Photosynthesis

Answer

Cellular respiration

Answer

Glycolysis

Answer

Krebs cycle

Question 59

What is the primary function of the Golgi apparatus?

Accepted Answer

To modify, sort, and package proteins

Answer

To store genetic information

Answer

To generate energy for the cell

Answer

To break down waste products

Question 60

In which stage of mitosis do chromosomes line up in the center of the cell?

Accepted Answer

Metaphase

Answer

Prophase

Answer

Anaphase

Answer

Telophase

Question 61

What is the main goal of cellular respiration?

Accepted Answer

To release energy from glucose molecules

Answer

To create new cells

Answer

To break down proteins

Answer

To transport materials across the cell membrane

Question 62

How does active transport differ from passive transport in cell membranes?

Accepted Answer

Active transport requires energy, while passive transport does not

Answer

Passive transport requires energy, while active transport does not

Answer

Both passive and active transport require energy

Answer

Neither passive nor active transport requires energy

Question 63

What is the primary role of the nucleus in a cell?

Accepted Answer

Controlling cell activities and storing genetic information

Answer

Protein synthesis

Answer

Energy production

Answer

Waste storage

Question 64

Mitosis is the process that creates:

Accepted Answer

Two identical cells, each with the same number of chromosomes as the parent cell

Answer

Four identical cells, each with half the number of chromosomes as the parent cell

Answer

Two genetically different cells, each with the same number of chromosomes as the parent cell

Answer

One genetically different cell, with double the number of chromosomes as the parent cell