B1 - Key Concepts in Biology

Question 1

What are the two main types of cells?

Answer 1

Eukaryotic and Prokaryotic

Question 2

True or False: Eukaryotic cells have a nucleus.

Answer 2

True

Question 3

Fill in the blank: Prokaryotic cells lack a _____.

Answer 3

nucleus

Question 4

Which type of cell is typically larger, eukaryotic or prokaryotic?

Answer 4

Eukaryotic

Question 5

What organelles are found in eukaryotic cells?

Answer 5

Nucleus, mitochondria, endoplasmic reticulum, Golgi apparatus, among others.

Question 6

True or False: All eukaryotic cells are multicellular.

Answer 6

False

Question 7

Which type of cell is bacteria classified as?

Answer 7

Prokaryotic

Question 8

Fill in the blank: Eukaryotic cells can be found in _____ organisms.

Answer 8

multicellular and unicellular

Question 9

What is the main difference between prokaryotic and eukaryotic cells?

Answer 9

Prokaryotic cells lack a membrane-bound nucleus and organelles, while eukaryotic cells have them.

Question 10

Which type of cell has DNA organized in linear chromosomes?

Answer 10

Eukaryotic

Question 11

True or False: Prokaryotic cells reproduce by mitosis.

Answer 11

False

Question 12

What process do prokaryotic cells primarily use for reproduction?

Answer 12

Binary fission

Question 13

In which type of cell would you find ribosomes?

Answer 13

Both prokaryotic and eukaryotic cells

Question 14

Multiple Choice: Which of the following is NOT a characteristic of prokaryotic cells? a) No nucleus b) Smaller size c) Membrane-bound organelles d) Unicellular

Answer 14

c) Membrane-bound organelles

Question 15

What type of cell is yeast classified as?

Answer 15

Eukaryotic

Question 16

Fill in the blank: The _____ is the control center of eukaryotic cells.

Answer 16

nucleus

Question 17

True or False: Eukaryotic cells can form complex tissues and organs.

Answer 17

True

Question 18

What is the primary function of mitochondria in eukaryotic cells?

Answer 18

Energy production through cellular respiration.

Question 19

What is the main structural feature of prokaryotic cells?

Answer 19

A rigid cell wall.

Question 20

Multiple Choice: Which of the following is a feature of eukaryotic cells? a) Circular DNA b) Lack of organelles c) Complex cytoskeleton d) Binary fission

Answer 20

c) Complex cytoskeleton

Question 21

Fill in the blank: The _____ is responsible for photosynthesis in plant eukaryotic cells.

Answer 21

chloroplast

Question 22

True or False: Prokaryotic cells can be found in extreme environments.

Answer 22

True

Question 23

What is the genetic material in prokaryotic cells called?

Answer 23

Nucleoid region

Question 24

Which structure protects the cell and gives it shape in prokaryotic cells?

Answer 24

Cell wall

Question 25

Multiple Choice: Which of the following is an example of a eukaryotic organism? a) E. coli b) Amoeba c) Virus d) Archaea

Answer 25

b) Amoeba

Question 26

What type of cell division do eukaryotic cells undergo?

Answer 26

Mitosis

Question 27

True or False: Prokaryotic cells contain membrane-bound organelles.

Answer 27

False

Question 28

Fill in the blank: The _____ is the protective outer layer of eukaryotic cells.

Answer 28

cell membrane

Question 29

What is the primary function of the endoplasmic reticulum in eukaryotic cells?

Answer 29

Protein and lipid synthesis.

Question 30

Multiple Choice: Which of the following is NOT a component of the cell theory? a) All living things are made of cells b) Cells are the basic unit of life c) All cells arise from pre-existing cells d) Cells can arise spontaneously

Answer 30

d) Cells can arise spontaneously

Question 31

What is the role of the Golgi apparatus in eukaryotic cells?

Answer 31

Modification, sorting, and packaging of proteins.

Question 32

Fill in the blank: Prokaryotic cells often have _____ to help them move.

Answer 32

flagella

Question 33

True or False: All eukaryotic cells have a cell wall.

Answer 33

False

Question 34

What type of cell is a plant cell classified as?

Answer 34

Eukaryotic

Question 35

Multiple Choice: Which of the following is a characteristic of eukaryotic cells? a) Unicellular only b) No nucleus c) Membrane-bound organelles d) Always small

Answer 35

c) Membrane-bound organelles

Question 36

What is the primary function of lysosomes in eukaryotic cells?

Answer 36

Digestion of waste materials and cellular debris.

Question 37

Fill in the blank: The _____ is responsible for maintaining the shape of plant cells.

Answer 37

cell wall

Question 38

True or False: Eukaryotic cells can be both unicellular and multicellular.

Answer 38

True

Question 39

What is the function of the cytoskeleton in eukaryotic cells?

Answer 39

Provides structure and aids in cell movement.

Question 40

Multiple Choice: Which of the following is a type of prokaryotic cell? a) Fungi b) Bacteria c) Protists d) Plants

Answer 40

b) Bacteria

Question 41

Fill in the blank: The _____ is the site of protein synthesis in all cells.

Answer 41

ribosome

Question 42

True or False: Eukaryotic cells can perform cellular respiration.

Answer 42

True

Question 43

What type of cell is an animal cell classified as?

Answer 43

Eukaryotic

Question 44

Multiple Choice: Which of the following structures is found in eukaryotic cells but not in prokaryotic cells? a) Ribosomes b) Nucleus c) Cell membrane d) Cytoplasm

Answer 44

b) Nucleus

Question 45

What is the primary role of chloroplasts in plant cells?

Answer 45

Photosynthesis.

Question 46

Fill in the blank: Prokaryotes are typically classified into two domains: _____ and Archaea.

Answer 46

Bacteria

Question 47

True or False: All prokaryotic cells have a flagellum.

Answer 47

False

Question 48

What type of genetic material do prokaryotic cells possess?

Answer 48

Circular DNA

Question 49

Multiple Choice: Which of the following is a feature of eukaryotic cells? a) No organelles b) Circular DNA c) Complex structure d) Smaller size

Answer 49

c) Complex structure

Question 50

Fill in the blank: The _____ is involved in the synthesis of lipids and steroids in eukaryotic cells.

Answer 50

smooth endoplasmic reticulum

Question 51

True or False: Prokaryotic cells can have plasmids.

Answer 51

True

Question 52

What is the primary function of the cell membrane?

Answer 52

Regulates the movement of substances in and out of the cell.