Biology

Question 1

What is the basic unit of life?

Answer 1

The cell.

Question 2

True or False: Prokaryotic cells have a nucleus.

Answer 2

False.

Question 3

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

Answer 3

mitochondrion.

Question 4

What is the function of ribosomes?

Answer 4

Protein synthesis.

Question 5

Which organelle is responsible for photosynthesis?

Answer 5

Chloroplast.

Question 6

What type of bond holds the two strands of DNA together?

Answer 6

Hydrogen bonds.

Question 7

Multiple Choice: Which of the following is a nitrogenous base? A) Glucose B) Adenine C) Glycerol

Answer 7

B) Adenine.

Question 8

What process converts glucose into ATP?

Answer 8

Cellular respiration.

Question 9

True or False: Meiosis results in four genetically identical daughter cells.

Answer 9

False.

Question 10

What is the function of the Golgi apparatus?

Answer 10

Modifying, sorting, and packaging proteins.

Question 11

Fill in the blank: The ___ phase of the cell cycle is when DNA is replicated.

Answer 11

S phase.

Question 12

What is the primary function of the plasma membrane?

Answer 12

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

Question 13

Multiple Choice: Which of the following is a type of connective tissue? A) Muscle B) Cartilage C) Neuron

Answer 13

B) Cartilage.

Question 14

What is the role of enzymes in biological reactions?

Answer 14

To speed up the reactions by lowering the activation energy.

Question 15

True or False: DNA is double-stranded and RNA is single-stranded.

Answer 15

True.

Question 16

Fill in the blank: The ___ is the region of the cell where ribosomes are made.

Answer 16

nucleolus.

Question 17

What is the difference between active and passive transport?

Answer 17

Active transport requires energy, while passive transport does not.

Question 18

Multiple Choice: Which of the following processes does not require oxygen? A) Aerobic respiration B) Anaerobic respiration C) Both

Answer 18

B) Anaerobic respiration.

Question 19

What is the primary function of the rough endoplasmic reticulum?

Answer 19

Protein synthesis and processing.

Question 20

True or False: The scientific method involves making observations, forming hypotheses, and conducting experiments.

Answer 20

True.

Question 21

Fill in the blank: The ___ is the genetic material found in all living organisms.

Answer 21

DNA.

Question 22

What are the building blocks of proteins?

Answer 22

Amino acids.

Question 23

Multiple Choice: Which of the following is NOT a phase of mitosis? A) Prophase B) Metaphase C) Cytokinesis D) Telophase

Answer 23

C) Cytokinesis.

Question 24

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

Answer 24

To provide structure and support.

Question 25

True or False: All cells in an organism have the same genetic material.

Answer 25

True.

Question 26

Fill in the blank: The ___ process involves the movement of water across a semipermeable membrane.

Answer 26

osmosis.

Question 27

What is the term for a segment of DNA that codes for a protein?

Answer 27

Gene.

Question 28

Multiple Choice: Which of the following is a function of the liver? A) Hormone production B) Detoxification C) Both

Answer 28

C) Both.

Question 29

What is the primary function of the circulatory system?

Answer 29

To transport nutrients, gases, and wastes throughout the body.

Question 30

True or False: Antibodies are produced by red blood cells.

Answer 30

False.

Question 31

Fill in the blank: The ___ is the part of the brain responsible for coordination and balance.

Answer 31

cerebellum.

Question 32

What is the role of the immune system?

Answer 32

To defend the body against pathogens.

Question 33

Multiple Choice: Which of the following is a function of the skeletal system? A) Movement B) Blood cell production C) Both

Answer 33

C) Both.

Question 34

What is the term for the exchange of gases in the lungs?

Answer 34

Respiration.

Question 35

True or False: All enzymes are proteins.

Answer 35

True.

Question 36

Fill in the blank: The ___ is the organ responsible for filtering blood and producing urine.

Answer 36

kidney.

Question 37

What is the primary function of the nervous system?

Answer 37

To transmit signals between different parts of the body.

Question 38

Multiple Choice: Which of the following processes occurs in the mitochondria? A) Glycolysis B) Krebs Cycle C) Fermentation

Answer 38

B) Krebs Cycle.

Question 39

What is the function of the pancreas in digestion?

Answer 39

To produce enzymes that help break down food.

Question 40

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

Answer 40

True.

Question 41

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

Answer 41

skin.

Question 42

What is the role of neurotransmitters?

Answer 42

To transmit signals across synapses between neurons.

Question 43

Multiple Choice: Which type of muscle is involuntary? A) Cardiac B) Skeletal C) Smooth

Answer 43

A) Cardiac.

Question 44

What is the primary function of the lymphatic system?

Answer 44

To help maintain fluid balance and defend against pathogens.

Question 45

True or False: The stomach is primarily responsible for nutrient absorption.

Answer 45

False.

Question 46

Fill in the blank: The ___ is the part of the brain responsible for higher cognitive functions.

Answer 46

cerebrum.

Question 47

What is the primary purpose of vaccinations?

Answer 47

To stimulate the immune system to recognize and fight pathogens.

Question 48

Multiple Choice: What type of bond forms between amino acids? A) Ionic B) Peptide C) Hydrogen

Answer 48

B) Peptide.

Question 49

What is the primary function of the digestive system?

Answer 49

To break down food and absorb nutrients.

Question 50

True or False: The body maintains homeostasis through feedback mechanisms.

Answer 50

True.

Question 51

Fill in the blank: The ___ system is responsible for hormone production and regulation.

Answer 51

endocrine.

Question 52

What is the main function of red blood cells?

Answer 52

To transport oxygen.

Question 53

Multiple Choice: Which of the following is a type of white blood cell? A) Erythrocyte B) Neutrophil C) Thrombocyte

Answer 53

B) Neutrophil.

Question 54

What is the primary role of the small intestine?

Answer 54

Nutrient absorption.

Question 55

True or False: The large intestine absorbs most of the nutrients from food.

Answer 55

False.

Question 56

Fill in the blank: The ___ is a structure that connects muscles to bones.

Answer 56

tendon.

Question 57

What is the primary function of cholesterol in the body?

Answer 57

To maintain cell membrane structure and fluidity.

Question 58

Multiple Choice: Which of the following nutrients is primarily used for energy? A) Proteins B) Carbohydrates C) Vitamins

Answer 58

B) Carbohydrates.

Question 59

What is the role of the hypothalamus?

Answer 59

To regulate body temperature and maintain homeostasis.

Question 60

True or False: The adrenal glands produce adrenaline.

Answer 60

True.

Question 61

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

Answer 61

alveoli.

Question 62

What is the main function of the urinary system?

Answer 62

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

Question 63

Multiple Choice: Which type of joint allows for the greatest range of motion? A) Hinge B) Ball-and-socket C) Pivot

Answer 63

B) Ball-and-socket.

Question 64

What is the primary function of insulin?

Answer 64

To lower blood glucose levels.

Question 65

True or False: The epidermis is the outermost layer of skin.

Answer 65

True.

Question 66

Fill in the blank: The ___ is the part of the nervous system that controls voluntary actions.

Answer 66

somatic nervous system.

Question 67

What is the role of the cerebellum?

Answer 67

To coordinate voluntary movements and balance.

Question 68

Multiple Choice: Which of the following is a function of the spleen? A) Filtering blood B) Producing insulin C) Storing bile

Answer 68

A) Filtering blood.

Question 69

What is the primary role of the large intestine?

Answer 69

To absorb water and electrolytes.

Question 70

True or False: The heart has four chambers.

Answer 70

True.

Question 71

Fill in the blank: The ___ is the part of the brain that regulates breathing.

Answer 71

medulla oblongata.

Question 72

What is the primary function of the integumentary system?

Answer 72

To protect the body from external damage.

Question 73

Multiple Choice: Which of the following nutrients is essential for cell membrane structure? A) Glucose B) Fats C) Fiber

Answer 73

B) Fats.

Question 74

What is the role of the thyroid gland?

Answer 74

To regulate metabolism and growth.

Question 75

True or False: The pancreas is both an endocrine and exocrine gland.

Answer 75

True.

Question 76

Fill in the blank: The ___ is the main site of digestion and nutrient absorption.

Answer 76

small intestine.

Question 77

What is the primary purpose of the respiratory system?

Answer 77

To facilitate gas exchange.

Question 78

Multiple Choice: Which of the following is a function of the skeletal muscle? A) Involuntary movement B) Voluntary movement C) Both

Answer 78

B) Voluntary movement.

Question 79

What is the main function of the bile?

Answer 79

To emulsify fats.

Question 80

True or False: The circulatory system includes the heart and blood vessels.

Answer 80

True.