Science, Christmas and Celebrities Quiz

Which type of cell is involved in gas exchange in the alveolar epithelium?

• Squamous cells

• Columnar cells

• Goblet cells

• Ciliated cells

What is the role of goblet cells in the lungs?

• Gas exchange

• Protecting lungs from pathogens

• Muscle contraction

• Nerve impulse conduction

Which type of muscle fiber is associated with endurance activities?

• Slow-twitch muscle fibers

• Fast-twitch muscle fibers

• Cardiac muscle fibers

• Smooth muscle fibers

What is the function of myelination in neurons?

• Increase membrane permeability

• Enhance saltatory conduction

• Decrease nerve impulse speed

• Prevent neurotransmitter release

Which neurotransmitter is associated with Parkinson's disease?

• Dopamine

• Serotonin

• Acetylcholine

• Norepinephrine

Which of the following is a property of elements related to their position in the periodic table?

• Electron affinity

• Malleability

• Viscosity

• Density

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

• Energy production

• Protein synthesis

• Structural support

• DNA replication

Which organelle is responsible for photosynthesis in plant cells?

• Mitochondria

• Chloroplast

• Nucleus

• Ribosome

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What is the main difference between gram-positive and gram-negative bacterial cell walls?

• Presence of a nucleus

• Thickness of the peptidoglycan layer

• Number of mitochondria

• Type of ribosomes

Which of the following is a chemical property of elements?

• Atomic radius

• Oxidation

• Ionic radius

• Electronegativity

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