Cells

Question 1

What is the basic unit of life?

Answer 1

Cell

Question 2

True or False: Prokaryotic cells have a nucleus.

Answer 2

False

Question 3

Fill in the blank: The jelly-like substance inside a cell is called __________.

Answer 3

cytoplasm

Question 4

What organelle is responsible for energy production in eukaryotic cells?

Answer 4

Mitochondria

Question 5

Which structure regulates what enters and leaves the cell?

Answer 5

Cell membrane

Question 6

Multiple Choice: Which of the following is not a function of the cell membrane? A) Protection B) Energy production C) Transport

Answer 6

B) Energy production

Question 7

What is the function of ribosomes?

Answer 7

Protein synthesis

Question 8

True or False: Plant cells have chloroplasts, while animal cells do not.

Answer 8

True

Question 9

Fill in the blank: The __________ is the control center of the cell.

Answer 9

nucleus

Question 10

What type of cell division occurs in somatic cells?

Answer 10

Mitosis

Question 11

Multiple Choice: Which of the following is a characteristic of prokaryotic cells? A) Membrane-bound organelles B) Circular DNA C) Nucleus

Answer 11

B) Circular DNA

Question 12

What is the role of the endoplasmic reticulum?

Answer 12

Protein and lipid synthesis

Question 13

True or False: Both plant and animal cells have a cell wall.

Answer 13

False

Question 14

Fill in the blank: The __________ is involved in packaging and modifying proteins.

Answer 14

Golgi apparatus

Question 15

What cellular structure is responsible for detoxifying substances?

Answer 15

Smooth endoplasmic reticulum

Question 16

Multiple Choice: Which of the following organelles is known as the ‘powerhouse of the cell’? A) Nucleus B) Mitochondria C) Ribosome

Answer 16

B) Mitochondria

Question 17

What is the primary function of lysosomes?

Answer 17

Digestion of waste materials

Question 18

True or False: All cells have a cell membrane.

Answer 18

True

Question 19

Fill in the blank: __________ are the sites of photosynthesis in plant cells.

Answer 19

Chloroplasts

Question 20

What is a major difference between plant and animal cells?

Answer 20

Plant cells have a cell wall and chloroplasts; animal cells do not.

Question 21

Multiple Choice: Which organelle is involved in the synthesis of ribosomes? A) Nucleus B) Golgi apparatus C) Mitochondria

Answer 21

A) Nucleus

Question 22

What is the role of the cytoskeleton?

Answer 22

Maintaining cell shape and facilitating movement

Question 23

True or False: The plasma membrane is selectively permeable.

Answer 23

True

Question 24

Fill in the blank: __________ are small structures within a cell that perform specific functions.

Answer 24

Organelles

Question 25

What process involves the movement of water across a selectively permeable membrane?

Answer 25

Osmosis

Question 26

Multiple Choice: Which of the following is NOT a type of cell? A) Prokaryotic B) Eukaryotic C) Multicellular

Answer 26

C) Multicellular

Question 27

What is the function of the cell wall in plant cells?

Answer 27

To provide structure and support

Question 28

What is phagocytosis?

Answer 28

Phagocytosis is the process by which certain cells engulf and digest large particles, such as pathogens.

Question 29

True or False: Phagocytosis is a form of active transport.

Answer 29

True

Question 30

Fill in the blank: Phagocytosis is primarily performed by ______ cells in the immune system.

Answer 30

phagocytes

Question 31

What type of cells are primarily involved in phagocytosis?

Answer 31

Macrophages and neutrophils.

Question 32

What triggers phagocytosis in phagocytic cells?

Answer 32

The recognition of pathogens or foreign particles.

Question 33

Multiple Choice: Which of the following is NOT a step in phagocytosis? A) Engulfment B) Digestion C) Exocytosis D) Osmosis

Answer 33

D) Osmosis

Question 34

What is the role of lysosomes in phagocytosis?

Answer 34

Lysosomes contain enzymes that digest the engulfed material.

Question 35

True or False: Phagocytosis can occur without the presence of antibodies.

Answer 35

True

Question 36

What is the first step in the phagocytosis process?

Answer 36

Recognition and attachment of the particle to the phagocyte.

Question 37

Fill in the blank: Phagocytosis leads to the formation of a ______ within the phagocyte.

Answer 37

phagosome

Question 38

What happens to the phagosome after formation?

Answer 38

It fuses with a lysosome to form a phagolysosome.

Question 39

Multiple Choice: Which of the following can be a target of phagocytosis? A) Bacteria B) Viruses C) Dead cells D) All of the above

Answer 39

D) All of the above

Question 40

How do phagocytes recognize pathogens?

Answer 40

Through specific receptors that detect pathogen-associated molecular patterns (PAMPs).

Question 41

True or False: Phagocytosis is a non-specific immune response.

Answer 41

True

Question 42

What is opsonization?

Answer 42

Opsonization is the process by which pathogens are marked for ingestion and destruction by phagocytes.

Question 43

Fill in the blank: The fusion of a phagosome with a lysosome results in the creation of a ______.

Answer 43

phagolysosome

Question 44

What is the purpose of the enzymes in lysosomes during phagocytosis?

Answer 44

To break down and digest the engulfed material.

Question 45

Multiple Choice: Which of the following is a key function of phagocytosis? A) Nutrient absorption B) Immune defense C) Hormone secretion D) Cell division

Answer 45

B) Immune defense

Question 46

What happens to the debris after digestion in phagocytosis?

Answer 46

It is either expelled from the cell through exocytosis or processed for further immune response.

Question 47

What is phagocytosis?

Answer 47

Phagocytosis is the process by which certain cells engulf and digest large particles, such as pathogens.

Question 48

True or False: Phagocytosis is a form of active transport.

Answer 48

True

Question 49

Fill in the blank: Phagocytosis is primarily performed by ______ cells in the immune system.

Answer 49

phagocytes

Question 50

What type of cells are primarily involved in phagocytosis?

Answer 50

Macrophages and neutrophils.

Question 51

What triggers phagocytosis in phagocytic cells?

Answer 51

The recognition of pathogens or foreign particles.

Question 52

Multiple Choice: Which of the following is NOT a step in phagocytosis? A) Engulfment B) Digestion C) Exocytosis D) Osmosis

Answer 52

D) Osmosis

Question 53

What is the role of lysosomes in phagocytosis?

Answer 53

Lysosomes contain enzymes that digest the engulfed material.

Question 54

True or False: Phagocytosis can occur without the presence of antibodies.

Answer 54

True

Question 55

What is the first step in the phagocytosis process?

Answer 55

Recognition and attachment of the particle to the phagocyte.

Question 56

Fill in the blank: Phagocytosis leads to the formation of a ______ within the phagocyte.

Answer 56

phagosome

Question 57

What happens to the phagosome after formation?

Answer 57

It fuses with a lysosome to form a phagolysosome.

Question 58

Multiple Choice: Which of the following can be a target of phagocytosis? A) Bacteria B) Viruses C) Dead cells D) All of the above

Answer 58

D) All of the above

Question 59

How do phagocytes recognize pathogens?

Answer 59

Through specific receptors that detect pathogen-associated molecular patterns (PAMPs).

Question 60

True or False: Phagocytosis is a non-specific immune response.

Answer 60

True

Question 61

What is opsonization?

Answer 61

Opsonization is the process by which pathogens are marked for ingestion and destruction by phagocytes.

Question 62

Fill in the blank: The fusion of a phagosome with a lysosome results in the creation of a ______.

Answer 62

phagolysosome

Question 63

What is the purpose of the enzymes in lysosomes during phagocytosis?

Answer 63

To break down and digest the engulfed material.

Question 64

Multiple Choice: Which of the following is a key function of phagocytosis? A) Nutrient absorption B) Immune defense C) Hormone secretion D) Cell division

Answer 64

B) Immune defense

Question 65

What happens to the debris after digestion in phagocytosis?

Answer 65

It is either expelled from the cell through exocytosis or processed for further immune response.