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{
"questions": [
{
"questionNumber": 1,
"question": "According to the Cell Theory, where do all cells come from?",
"answerOptions": [
{
"text": "They form spontaneously from non-living matter.",
"rationale": "Spontaneous generation is incorrect; cell theory states that cells cannot form from non-living matter.",
"isCorrect": false
},
{
"text": "They only come from the reproduction of existing cells.",
"rationale": "This is a core principle of cell theory, stating that new cells are produced from existing cells.",
"isCorrect": true
},
{
"text": "They are created directly by public health vaccines.",
"rationale": "Vaccines stimulate the immune system to build antibodies, but they do not manufacture cells.",
"isCorrect": false
},
{
"text": "They only develop from extracellular mineral deposits.",
"rationale": "Mineral deposits can strengthen structures like bone, but cells are living units that must come from parent cells.",
"isCorrect": false
}
],
"hint": "Think of the three main rules of Cell Theory regarding how cells multiply."
},
{
"questionNumber": 2,
"question": "Which cell organelle acts as the control centre for all cell activity and houses the DNA?",
"answerOptions": [
{
"text": "Mitochondria",
"rationale": "Mitochondria create ATP energy for the cell but do not control overall cellular activities.",
"isCorrect": false
},
{
"text": "Cell Membrane",
"rationale": "The cell membrane controls what enters and exits the cell but does not serve as the control centre.",
"isCorrect": false
},
{
"text": "Nucleus",
"rationale": "According to your notes, the nucleus serves as the control centre for all cell activity.",
"isCorrect": true
},
{
"text": "Golgi Body",
"rationale": "The Golgi body sorts and packages proteins rather than controlling general cell operations.",
"isCorrect": false
}
],
"hint": "This is the large, central organelle containing your chromosomes."
},
{
"questionNumber": 3,
"question": "During which phase of mitosis do the double-stranded chromosomes line up perfectly along the middle of the cell?",
"answerOptions": [
{
"text": "Prophase",
"rationale": "In prophase, chromosomes condense and become visible, but they have not lined up yet.",
"isCorrect": false
},
{
"text": "Metaphase",
"rationale": "Metaphase is the stage where chromosomes align along the middle (equatorial plate) of the cell.",
"isCorrect": true
},
{
"text": "Anaphase",
"rationale": "During anaphase, sister chromatids are pulled apart to opposite ends of the cell.",
"isCorrect": false
},
{
"text": "Telophase",
"rationale": "In telophase, nuclear membranes re-form around the separated chromosomes at each pole.",
"isCorrect": false
}
],
"hint": "This is the shortest phase of mitosis. Think of the letter 'M' for 'Middle'."
},
{
"questionNumber": 4,
"question": "Why is cytokinesis different in plant cells compared to animal cells?",
"answerOptions": [
{
"text": "Plant cells form a cleavage furrow, while animal cells form a cell plate.",
"rationale": "This is backward; animal cells pinch inward to form a furrow, while rigid plant cells must build a plate.",
"isCorrect": false
},
{
"text": "Plant cells form a cell plate, while animal cells form a cleavage furrow.",
"rationale": "Because plant cells have a rigid cell wall, they must build a cell plate down the middle to divide.",
"isCorrect": true
},
{
"text": "Plant cells do not divide their cytoplasm at all during this stage.",
"rationale": "Both plant and animal cells must undergo cytokinesis to successfully divide into two daughter cells.",
"isCorrect": false
},
{
"text": "Animal cells use chloroplasts to construct a new outer cell wall.",
"rationale": "Animal cells do not have chloroplasts or cell walls.",
"isCorrect": false
}
],
"hint": "Recall which cell type has a rigid outer cell wall that prevents it from easily pinching inward."
},
{
"questionNumber": 5,
"question": "Which organ in the digestive system is the primary site of chemical digestion and nutrient absorption?",
"answerOptions": [
{
"text": "Stomach",
"rationale": "The stomach performs initial mechanical and chemical breakdown, but it is not the main site for nutrient absorption.",
"isCorrect": false
},
{
"text": "Esophagus",
"rationale": "The esophagus is simply a muscular tube that transports food to the stomach via peristalsis.",
"isCorrect": false
},
{
"text": "Small Intestine",
"rationale": "Your notes state that the small intestine is the main site of chemical digestion and nutrient absorption.",
"isCorrect": true
},
{
"text": "Large Intestine",
"rationale": "The large intestine mainly absorbs water and vitamins from remaining undigested material.",
"isCorrect": false
}
],
"hint": "This organ is about 7 meters long and contains finger-like projections called villi."
},
{
"questionNumber": 6,
"question": "What is the primary role of the villi and microvilli inside the small intestine?",
"answerOptions": [
{
"text": "To secrete acidic gastric juices to kill harmful bacteria.",
"rationale": "Gastric juice is secreted by the stomach lining, not the intestinal villi.",
"isCorrect": false
},
{
"text": "To increase the surface area to absorb as many nutrients as possible.",
"rationale": "By folding the inner lining, villi and microvilli maximize the area available for nutrients to diffuse into the blood.",
"isCorrect": true
},
{
"text": "To store concentrated bile made by the liver.",
"rationale": "Bile is stored in the gallbladder, not in the intestinal villi.",
"isCorrect": false
},
{
"text": "To move food down the digestive tract using peristalsis contractions.",
"rationale": "Peristalsis is performed by the smooth muscle layers, not the microscopic surface villi.",
"isCorrect": false
}
],
"hint": "Think about how these finger-like projections help get food into your bloodstream efficiently."
},
{
"questionNumber": 7,
"question": "Which type of blood vessel always carries blood away from the heart?",
"answerOptions": [
{
"text": "Veins",
"rationale": "Veins carry blood back toward the heart.",
"isCorrect": false
},
{
"text": "Arteries",
"rationale": "By definition, arteries carry blood away from the heart.",
"isCorrect": true
},
{
"text": "Capillaries",
"rationale": "Capillaries are tiny link vessels that connect arteries and veins to allow gas exchange.",
"isCorrect": false
},
{
"text": "Villi",
"rationale": "Villi are microscopic absorption structures in the digestive system, not blood vessels.",
"isCorrect": false
}
],
"hint": "Remember: 'A' for Arteries, 'A' for Away."
},
{
"questionNumber": 8,
"question": "What are the microscopic air sacs in your lungs where gas exchange (external respiration) occurs?",
"answerOptions": [
{
"text": "Bronchioles",
"rationale": "Bronchioles are small branching tubes that carry air to the air sacs, but do not perform exchange.",
"isCorrect": false
},
{
"text": "Trachea",
"rationale": "The trachea is the main windpipe that leads down into your chest cavity.",
"isCorrect": false
},
{
"text": "Alveoli",
"rationale": "Alveoli are the tiny clusters of air sacs at the end of airways where oxygen and carbon dioxide are exchanged.",
"isCorrect": true
},
{
"text": "Cilia",
"rationale": "Cilia are hair-like extensions that help sweep dust and debris out of the airways.",
"isCorrect": false
}
],
"hint": "There are approximately 150 million of these tiny air sacs in each lung."
},
{
"questionNumber": 9,
"question": "If you fell and think you broke a bone in your arm, which imaging technology is the best and quickest choice to check for a fracture?",
"answerOptions": [
{
"text": "Ultrasound",
"rationale": "Ultrasound uses sound waves and is excellent for soft tissue or pregnancy, but cannot penetrate bones.",
"isCorrect": false
},
{
"text": "X-ray",
"rationale": "X-rays easily pass through soft tissues but are absorbed by dense bones, making them ideal for seeing fractures.",
"isCorrect": true
},
{
"text": "Endoscopy",
"rationale": "An endoscopy uses a camera on a flexible tube to look inside your digestive tract, not at skeletal bones.",
"isCorrect": false
},
{
"text": "CT Scan",
"rationale": "CT scans are 3D and are used for complex internal head/organ injuries, which is excessive for a simple arm fracture.",
"isCorrect": false
}
],
"hint": "This technology shoots electromagnetic waves through your arm to expose a white image of your bones."
},
{
"questionNumber": 10,
"question": "How do vaccines protect you from getting sick from a real virus or bacterium?",
"answerOptions": [
{
"text": "They use chemical drugs to stop your cells from dividing.",
"rationale": "This describes chemotherapy, which is used for cancer, not vaccines.",
"isCorrect": false
},
{
"text": "They introduce a weakened/inactive pathogen to stimulate your immune system to make antibodies.",
"rationale": "Vaccines expose your body to safe antigens so your white blood cells can create memory cells to fight the real germ later.",
"isCorrect": true
},
{
"text": "They physically repair broken DNA strands in your cells.",
"rationale": "Vaccines train your immune system; they do not edit or repair DNA sequences.",
"isCorrect": false
},
{
"text": "They act as a physical barrier that blocks germs from entering your nose.",
"rationale": "A mask or handwashing act as a physical barrier, whereas vaccines work biologically inside your bloodstream.",
"isCorrect": false
}
],
"hint": "Think about how weakened germs act as a safe 'practice run' for your white blood cells."
}
]
}
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