chem Flashcards

1
Q

What is the function of the cell membrane?

A

The cell membrane controls the movement of substances in and out of the cell.

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2
Q

True or False: The nucleus contains the cell’s genetic material.

A

True

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3
Q

Fill in the blank: The process by which plants make their own food is called ______.

A

photosynthesis

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4
Q

What are the two main types of cells?

A

Prokaryotic and eukaryotic cells.

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5
Q

Which organelle is responsible for energy production?

A

Mitochondria

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6
Q

Multiple Choice: Which of the following is NOT a type of tissue? A) Connective B) Epithelial C) Mitochondrial D) Muscle

A

C) Mitochondrial

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7
Q

What is the primary function of ribosomes?

A

To synthesize proteins.

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8
Q

True or False: DNA is made up of amino acids.

A

False

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9
Q

Fill in the blank: The basic unit of life is the ______.

A

cell

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10
Q

What is the role of chloroplasts in plant cells?

A

To carry out photosynthesis.

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11
Q

Multiple Choice: What type of bond holds the two strands of DNA together? A) Ionic B) Covalent C) Hydrogen D) Metallic

A

C) Hydrogen

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12
Q

What is the function of the lysosome?

A

To break down waste materials and cellular debris.

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13
Q

True or False: All cells have a cell wall.

A

False

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14
Q

Fill in the blank: The ______ is the powerhouse of the cell.

A

mitochondria

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15
Q

What is the process called when a cell divides to form two daughter cells?

A

Mitosis

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16
Q

Multiple Choice: Which of the following is a function of the skeletal system? A) Support B) Blood cell production C) Protection D) All of the above

A

D) All of the above

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17
Q

Define homeostasis.

A

The maintenance of a stable internal environment within an organism.

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18
Q

True or False: Enzymes are proteins that speed up chemical reactions.

A

True

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19
Q

Fill in the blank: The ______ system is responsible for transporting blood throughout the body.

A

circulatory

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20
Q

What are the four main types of biomolecules?

A

Carbohydrates, lipids, proteins, and nucleic acids.

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21
Q

Which structure regulates the entry and exit of substances in and out of the cell?

A

Cell membrane

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22
Q

Multiple Choice: What is the primary function of the digestive system? A) To provide structure B) To break down food C) To circulate blood D) To protect against disease

A

B) To break down food

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23
Q

What is the role of the immune system?

A

To defend the body against pathogens.

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24
Q

True or False: The brain is part of the peripheral nervous system.

A

False

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25
Q

Fill in the blank: The ______ is the largest organ in the human body.

A

skin

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26
Q

What is the function of the endocrine system?

A

To produce and secrete hormones that regulate various bodily functions.

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27
Q

Multiple Choice: Which organ is responsible for filtering blood? A) Heart B) Liver C) Kidneys D) Lungs

A

C) Kidneys

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28
Q

What is the function of the respiratory system?

A

To exchange gases (oxygen and carbon dioxide) between the body and the environment.

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29
Q

True or False: Photosynthesis occurs in mitochondria.

A

False

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30
Q

Fill in the blank: The ______ is responsible for coordinating voluntary movements.

A

cerebellum

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31
Q

What is the primary role of red blood cells?

A

To transport oxygen throughout the body.

32
Q

Multiple Choice: Which of the following is a function of proteins? A) Energy storage B) Catalyzing reactions C) Providing structure D) All of the above

A

D) All of the above

33
Q

What is the basic structure of DNA?

A

A double helix composed of nucleotides.

34
Q

True or False: The liver is involved in detoxification.

35
Q

Fill in the blank: The ______ system regulates body temperature.

A

integumentary

36
Q

What is osmosis?

A

The movement of water molecules through a semi-permeable membrane from an area of lower solute concentration to an area of higher solute concentration.

37
Q

Multiple Choice: Which type of RNA carries amino acids to the ribosome? A) mRNA B) tRNA C) rRNA D) siRNA

38
Q

What is the primary component of the cell wall in plants?

39
Q

True or False: The heart is a muscle that pumps blood.

40
Q

Fill in the blank: The ______ is where protein synthesis occurs.

41
Q

What is the function of the Golgi apparatus?

A

To modify, sort, and package proteins for secretion.

42
Q

Multiple Choice: What type of cell division produces gametes? A) Mitosis B) Meiosis C) Binary fission D) Budding

A

B) Meiosis

43
Q

What is the role of the pancreas in digestion?

A

To produce enzymes and hormones that help regulate blood sugar levels and aid in digestion.

44
Q

True or False: All organisms are made up of cells.

45
Q

Fill in the blank: The ______ is the part of the brain that controls basic life functions.

46
Q

What is a mutation?

A

A change in the DNA sequence that can lead to changes in protein structure and function.

47
Q

Multiple Choice: Which of the following is a function of lipids? A) Energy storage B) Insulation C) Cell membrane structure D) All of the above

A

D) All of the above

48
Q

What is the primary role of the small intestine?

A

To absorb nutrients from digested food.

49
Q

True or False: The skeletal system has no role in movement.

50
Q

Fill in the blank: The ______ is the site of gas exchange in the lungs.

51
Q

What is the role of the hypothalamus?

A

To regulate body temperature, hunger, and thirst.

52
Q

Multiple Choice: Which part of the neuron receives signals? A) Axon B) Dendrites C) Cell body D) Synapse

A

B) Dendrites

53
Q

What is the function of the large intestine?

A

To absorb water and electrolytes, and to prepare waste for elimination.

54
Q

True or False: The process of cellular respiration occurs in the mitochondria.

55
Q

Fill in the blank: The ______ is responsible for filtering and processing blood.

56
Q

What is the primary function of the urinary system?

A

To remove waste products from the body and regulate water balance.

57
Q

Multiple Choice: Which type of blood vessel carries blood away from the heart? A) Veins B) Arteries C) Capillaries D) None of the above

A

B) Arteries

58
Q

What is the role of the skin?

A

To protect the body, regulate temperature, and provide sensory information.

59
Q

True or False: All enzymes function optimally at the same temperature.

60
Q

Fill in the blank: The ______ is the basic functional unit of the kidney.

61
Q

What is the function of antibodies?

A

To identify and neutralize pathogens.

62
Q

Multiple Choice: Which of the following is a characteristic of living organisms? A) Growth B) Reproduction C) Response to stimuli D) All of the above

A

D) All of the above

63
Q

What is the primary role of the circulatory system?

A

To transport nutrients, gases, hormones, and waste products throughout the body.

64
Q

True or False: The ribosome is involved in DNA replication.

65
Q

Fill in the blank: The ______ is responsible for coordinating the body’s responses to stimuli.

A

nervous system

66
Q

What is the function of the spleen?

A

To filter blood and help fight infections.

67
Q

Multiple Choice: Which process involves the movement of substances against their concentration gradient? A) Diffusion B) Osmosis C) Active transport D) Passive transport

A

C) Active transport

68
Q

What is the primary role of the endocrine system?

A

To regulate bodily functions through hormones.

69
Q

True or False: The hypothalamus is part of the limbic system.

70
Q

Fill in the blank: The ______ is the site of protein synthesis.

71
Q

What is the function of the adrenal glands?

A

To produce hormones that help regulate metabolism, immune response, and stress.

72
Q

Multiple Choice: Which of the following is NOT a component of blood? A) Red blood cells B) Plasma C) Platelets D) Nerve cells

A

D) Nerve cells

73
Q

What is the primary function of the skeletal muscle?

A

To facilitate movement of the body.

74
Q

True or False: The pancreas produces insulin.

75
Q

Fill in the blank: The ______ system is responsible for producing offspring.

A

reproductive

76
Q

What is the primary function of the immune system?

A

To protect the body from infections and diseases.