Science

Question 1

What is the primary function of a microscope?

Answer 1

To magnify small objects or details that are not visible to the naked eye.

Question 2

True or False: Light microscopes use visible light to illuminate specimens.

Answer 2

True

Question 3

What type of microscope uses electrons instead of light?

Answer 3

Electron microscope

Question 4

Fill in the blank: The part of the microscope that holds the objective lenses is called the __________.

Answer 4

nosepiece

Question 5

What is the maximum magnification typically achievable with a light microscope?

Answer 5

Around 1000x to 2000x

Question 6

Which type of microscope is best for viewing the surface of a specimen?

Answer 6

Scanning Electron Microscope (SEM)

Question 7

What is the main advantage of using a fluorescence microscope?

Answer 7

It allows for the visualization of specific structures within cells using fluorescent dyes.

Question 8

True or False: Prokaryotic cells lack a nucleus.

Answer 8

True

Question 9

What is the jelly-like substance inside a cell called?

Answer 9

Cytoplasm

Question 10

Short answer: Name one key difference between plant and animal cells.

Answer 10

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

Question 11

What structure controls the entry and exit of substances in a cell?

Answer 11

Cell membrane

Question 12

Fill in the blank: The __________ is the control center of the cell that contains genetic material.

Answer 12

nucleus

Question 13

What organelle is responsible for energy production in eukaryotic cells?

Answer 13

Mitochondria

Question 14

True or False: Ribosomes are involved in protein synthesis.

Answer 14

True

Question 15

What type of cell division occurs in somatic cells?

Answer 15

Mitosis

Question 16

Multiple choice: Which of the following is NOT a part of the cell theory? A) All living things are made of cells, B) Cells are the basic unit of life, C) All cells have a nucleus, D) All cells arise from pre-existing cells.

Answer 16

C) All cells have a nucleus

Question 17

What is the function of the Golgi apparatus?

Answer 17

To modify, sort, and package proteins and lipids for secretion or use within the cell.

Question 18

Fill in the blank: The __________ is a network of protein filaments that helps the cell maintain its shape.

Answer 18

cytoskeleton

Question 19

True or False: Chloroplasts are found in animal cells.

Answer 19

False

Question 20

What is the primary role of lysosomes in a cell?

Answer 20

To break down waste materials and cellular debris.

Question 21

Short answer: What is the function of the endoplasmic reticulum?

Answer 21

To synthesize proteins and lipids.

Question 22

What type of microscope provides the highest resolution?

Answer 22

Transmission Electron Microscope (TEM)

Question 23

Fill in the blank: The __________ is a double membrane that surrounds the nucleus.

Answer 23

nuclear envelope

Question 24

True or False: The cell membrane is selectively permeable.

Answer 24

True

Question 25

What is the purpose of using stains in microscopy?

Answer 25

To enhance contrast and visualize specific structures in cells.

Question 26

Multiple choice: Which of the following is NOT an organelle? A) Nucleus, B) Ribosome, C) Cytoplasm, D) Mitochondria.

Answer 26

C) Cytoplasm

Question 27

What structure is responsible for protein synthesis?

Answer 27

Ribosomes

Question 29

What is the basic unit of life in eukaryotic organisms?

Answer 29

The eukaryotic cell.

Question 30

True or False: Eukaryotic cells have a defined nucleus.

Answer 30

True.

Question 31

What organelle is responsible for energy production in eukaryotic cells?

Answer 31

Mitochondria.

Question 32

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

Answer 32

nucleus.

Question 33

Which organelle is responsible for protein synthesis?

Answer 33

Ribosomes.

Question 34

What is the function of the endoplasmic reticulum?

Answer 34

Synthesis of proteins and lipids.

Question 35

Multiple Choice: Which of the following is NOT a type of endoplasmic reticulum? A) Smooth B) Rough C) Mitochondrial D) Both A and B

Answer 35

C) Mitochondrial.

Question 36

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

Answer 36

Mitochondria.

Question 37

True or False: The Golgi apparatus modifies and packages proteins.

Answer 37

True.

Question 38

What is the main function of lysosomes?

Answer 38

Digestion and waste removal.

Question 39

Fill in the blank: The _____ is involved in detoxifying harmful substances.

Answer 39

smooth endoplasmic reticulum.

Question 40

Which organelle is involved in the synthesis of lipids?

Answer 40

Smooth endoplasmic reticulum.

Question 41

What structure provides support and shape to plant cells?

Answer 41

Cell wall.

Question 42

Multiple Choice: Which organelle is primarily involved in photosynthesis? A) Mitochondria B) Chloroplast C) Ribosome D) Golgi apparatus

Answer 42

B) Chloroplast.

Question 43

True or False: Vacuoles are larger in plant cells than in animal cells.

Answer 43

True.

Question 44

What is the role of the plasma membrane?

Answer 44

To regulate what enters and leaves the cell.

Question 45

Fill in the blank: _____ are small structures that carry out specific functions within a cell.

Answer 45

Organelles.

Question 46

What is the primary function of the cytoskeleton?

Answer 46

To provide structural support and shape to the cell.

Question 47

Multiple Choice: Which of the following is a function of the Golgi apparatus? A) Protein synthesis B) Lipid synthesis C) Modification and packaging of proteins D) Energy production

Answer 47

C) Modification and packaging of proteins.

Question 48

True or False: Ribosomes can be found free-floating in the cytoplasm.

Answer 48

True.

Question 49

What is the function of peroxisomes?

Answer 49

Breakdown of fatty acids and detoxification of harmful substances.

Question 50

Fill in the blank: The _____ is a network of protein filaments and tubules that helps the cell maintain its shape.

Answer 50

cytoskeleton.

Question 51

What structure is involved in the transport of materials within the cell?

Answer 51

Vesicles.

Question 52

Multiple Choice: Which organelle is involved in the synthesis of ATP? A) Lysosome B) Ribosome C) Mitochondria D) Nucleus

Answer 52

C) Mitochondria.

Question 53

True or False: Eukaryotic cells do not have membrane-bound organelles.

Answer 53

False.

Question 54

What is the primary role of chloroplasts in plant cells?

Answer 54

To conduct photosynthesis.

Question 55

What is the outermost layer of a plant cell called?

Answer 55

Cell wall

Question 56

True or False: Animal cells have a cell wall.

Answer 56

False

Question 57

What organelle is responsible for energy production in both animal and plant cells?

Answer 57

Mitochondria

Question 58

Fill in the blank: The _____ is the control center of the cell, containing DNA.

Answer 58

nucleus

Question 59

Which organelle is responsible for photosynthesis in plant cells?

Answer 59

Chloroplast

Question 60

What structure provides shape and support to a plant cell?

Answer 60

Cell wall

Question 61

Which type of cell contains lysosomes?

Answer 61

Animal cell

Question 62

Multiple Choice: Which of the following is NOT found in plant cells? A) Chloroplasts B) Cell wall C) Centrioles D) Vacuoles

Answer 62

C) Centrioles

Question 63

What is the function of the vacuole in plant cells?

Answer 63

Storage of substances and maintaining turgor pressure

Question 64

True or False: Ribosomes are found in both animal and plant cells.

Answer 64

True

Question 65

Fill in the blank: The _____ is a jelly-like substance where organelles are suspended.

Answer 65

cytoplasm

Question 66

What type of cell division occurs in animal cells?

Answer 66

Mitosis

Question 67

Multiple Choice: Which organelle is known as the 'powerhouse of the cell'? A) Nucleus B) Golgi apparatus C) Mitochondria D) Endoplasmic reticulum

Answer 67

C) Mitochondria

Question 68

What is a key difference between the vacuoles of plant and animal cells?

Answer 68

Plant cells have a large central vacuole, while animal cells have smaller vacuoles.

Question 69

True or False: Both animal and plant cells contain a nucleus.

Answer 69

True

Question 70

Fill in the blank: The _____ is responsible for modifying and packaging proteins.

Answer 70

Golgi apparatus

Question 71

What is the primary role of the endoplasmic reticulum?

Answer 71

Synthesis of proteins and lipids

Question 72

Which type of cell contains chlorophyll?

Answer 72

Plant cell

Question 73

Multiple Choice: What structure is selectively permeable and surrounds all cells? A) Cytoplasm B) Cell membrane C) Nucleus D) Ribosome

Answer 73

B) Cell membrane

Question 74

What is the main function of the cell wall?

Answer 74

To provide protection and support to the cell

Question 75

True or False: Animal cells can perform photosynthesis.

Answer 75

False

Question 76

Fill in the blank: The _____ helps in the synthesis of lipids and detoxification.

Answer 76

smooth endoplasmic reticulum

Question 77

What is the function of ribosomes?

Answer 77

Protein synthesis

Question 78

Which organelle is involved in the breakdown of waste materials?

Answer 78

Lysosome

Question 79

True or False: The cytoskeleton is present in both plant and animal cells.

Answer 79

True

Question 80

Fill in the blank: The _____ are the sites of protein synthesis in the cell.

Answer 80

ribosomes

Question 81

What structure is responsible for transporting materials within the cell?

Answer 81

Endoplasmic reticulum