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Cells And Cell Structure Flashcards

1
Q

What is the basic unit of life?

A

Cell

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2
Q

True or False: Prokaryotic cells have a nucleus.

A

False

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3
Q

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

A

nucleus

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4
Q

What structure regulates the movement of substances in and out of the cell?

A

Cell membrane

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5
Q

What is the function of ribosomes?

A

Protein synthesis

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6
Q

Which organelle is responsible for energy production?

A

Mitochondria

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7
Q

Multiple choice: Which of the following is NOT a component of the cell theory? A) All living things are composed of cells B) Cells are the basic unit of life C) Cells can arise spontaneously D) All cells come from pre-existing cells

A

C) Cells can arise spontaneously

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8
Q

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

A

Cytoplasm

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9
Q

True or False: Plant cells have cell walls.

A

True

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10
Q

What is the function of the rough endoplasmic reticulum?

A

Synthesis and processing of proteins

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11
Q

Fill in the blank: The _______ is involved in the modification and packaging of proteins.

A

Golgi apparatus

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12
Q

What structure is responsible for photosynthesis in plant cells?

A

Chloroplasts

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13
Q

Multiple choice: Which organelle is known as the ‘powerhouse of the cell’? A) Nucleus B) Ribosome C) Mitochondria D) Golgi apparatus

A

C) Mitochondria

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14
Q

What type of cell lacks membrane-bound organelles?

A

Prokaryotic cell

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15
Q

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

A

True

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16
Q

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

A

Provide structure and support

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17
Q

Fill in the blank: The _______ is a semi-permeable barrier surrounding the cell.

A

cell membrane

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18
Q

What is the role of lysosomes in the cell?

A

Digestion of waste materials and cellular debris

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19
Q

Multiple choice: Which of the following is a characteristic of prokaryotic cells? A) Have a true nucleus B) Lack membrane-bound organelles C) Larger in size D) Complex structure

A

B) Lack membrane-bound organelles

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20
Q

What is the function of the cytoskeleton?

A

Provide structural support and shape to the cell

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21
Q

True or False: The nucleolus is involved in ribosome production.

A

True

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22
Q

Fill in the blank: The _______ is the site of lipid synthesis.

A

smooth endoplasmic reticulum

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23
Q

What are the small, hair-like structures that help in cell movement called?

A

Cilia or flagella

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24
Q

Multiple choice: Which organelle is involved in detoxifying harmful substances? A) Mitochondria B) Smooth endoplasmic reticulum C) Ribosomes D) Golgi apparatus

A

B) Smooth endoplasmic reticulum

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25
Q

What is the main component of the plant cell wall?

A

Cellulose

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26
Q

True or False: All cells have DNA.

A

True

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27
Q

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

A

cytoskeleton

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28
Q

What is the primary function of the plasma membrane?

A

Regulate the entry and exit of substances

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29
Q

Multiple choice: Which of the following is found in eukaryotic cells but not in prokaryotic cells? A) DNA B) Ribosomes C) Nucleus D) Cell membrane

A

C) Nucleus

30
Q

What is the primary role of the vacuole in plant cells?

A

Storage of substances and maintaining turgor pressure

31
Q

True or False: The Golgi apparatus is involved in the synthesis of ATP.

32
Q

Fill in the blank: The _______ contains the genetic material of the cell.

33
Q

What is the function of the plasma membrane proteins?

A

Facilitate transport and communication

34
Q

Multiple choice: Which organelle is responsible for protein modification? A) Ribosome B) Golgi apparatus C) Lysosome D) Nucleus

A

B) Golgi apparatus

35
Q

What is the process by which cells obtain energy from glucose called?

A

Cellular respiration

36
Q

True or False: All cells have a cell wall.

37
Q

Fill in the blank: The _______ is the site of photosynthesis in plant cells.

A

chloroplast

38
Q

What type of transport requires energy to move substances across the cell membrane?

A

Active transport

39
Q

Multiple choice: Which of the following is a function of the rough endoplasmic reticulum? A) Lipid synthesis B) Protein synthesis C) DNA replication D) Waste removal

A

B) Protein synthesis

40
Q

What is the term for the movement of water across a selectively permeable membrane?

41
Q

True or False: The cell membrane is composed of a phospholipid bilayer.

42
Q

Fill in the blank: The _______ helps in the synthesis of ribosomal RNA.

43
Q

What is the main function of centrioles?

A

Cell division

44
Q

Multiple choice: Which structure is responsible for detoxifying harmful substances in the liver? A) Lysosome B) Peroxisome C) Mitochondria D) Ribosome

A

B) Peroxisome

45
Q

What is the role of the cell membrane in cellular communication?

A

It contains receptors that respond to signaling molecules.

46
Q

True or False: Animal cells have chloroplasts.

47
Q

Fill in the blank: The _______ provides a pathway for intracellular transport.

A

endoplasmic reticulum

48
Q

What is the fundamental difference between plant and animal cells?

A

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

49
Q

Multiple choice: Which of the following is a function of lysosomes? A) Energy production B) Waste disposal C) Photosynthesis D) Protein synthesis

A

B) Waste disposal

50
Q

What is the significance of the selective permeability of the cell membrane?

A

It allows the cell to maintain homeostasis by controlling what enters and exits.

51
Q

True or False: Mitochondria have their own DNA.

52
Q

Fill in the blank: The _______ is involved in the synthesis of ATP.

A

mitochondria

53
Q

What are the hair-like projections on some eukaryotic cells called?

54
Q

Multiple choice: Which is the primary component of the plasma membrane? A) Proteins B) Nucleic acids C) Carbohydrates D) Phospholipids

A

D) Phospholipids

55
Q

What cellular structure is responsible for packaging and distributing proteins?

A

Golgi apparatus

56
Q

True or False: The endoplasmic reticulum is involved in detoxifying drugs.

57
Q

Fill in the blank: The _______ is the site of cellular respiration.

A

mitochondria

58
Q

What is the process called when a cell engulfs large particles?

A

Phagocytosis

59
Q

Multiple choice: Which organelle is known as the ‘suicide bag’ of the cell? A) Ribosome B) Lysosome C) Golgi apparatus D) Nucleus

A

B) Lysosome

60
Q

What is the role of the extracellular matrix?

A

Provide structural and biochemical support to surrounding cells.

61
Q

True or False: The cell wall is selectively permeable.

62
Q

Fill in the blank: The _______ is involved in the synthesis of lipids.

A

smooth endoplasmic reticulum

63
Q

What is the term for the process of cell division in eukaryotic cells?

64
Q

Multiple choice: Which of the following organelles is involved in protein synthesis? A) Mitochondria B) Ribosomes C) Golgi apparatus D) Lysosomes

A

B) Ribosomes

65
Q

What is the function of chlorophyll in chloroplasts?

A

Absorb light energy for photosynthesis.

66
Q

True or False: Plant cells are typically larger than animal cells.

67
Q

Fill in the blank: The _______ helps maintain the shape of the cell and assists in cell movement.

A

cytoskeleton

68
Q

What is the primary role of the nucleolus?

A

Production of ribosomal RNA

69
Q

Multiple choice: Which of the following is NOT found in prokaryotic cells? A) Ribosomes B) Cell membrane C) Nucleus D) DNA

A

C) Nucleus

70
Q

What is the term for the movement of substances from an area of high concentration to an area of low concentration?

71
Q

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

72
Q

Fill in the blank: The _______ is a double membrane structure that encloses the nucleus.

A

nuclear envelope

Biology (31 decks)

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