Advanced Science Quiz

Which pair correctly defines and gives an example of qualitative and quantitative data?

• A) Qualitative: 5 seconds; Quantitative: warm water

• B) Qualitative: water turned clear; Quantitative: sugar took 15 seconds to dissolve

• C) Qualitative: temperature reading; Quantitative: texture of sugar

How is the scientific method applied to an experiment examining surface types and toy car travel distances?

• A) The car is pushed randomly and distances guessed.

• B) Observations are skipped to focus on the conclusion.

• C) Variables are tested methodically to measure rolling distance.

Why are chloroplasts essential in plant cells?

• A) They help in respiration.

• B) They make food through photosynthesis.

• C) They support cell structure.

What separates passive transport from active transport?

• A) Passive needs energy; active does not.

• B) Active transport uses energy to move substances against concentration gradients.

• C) Passive transport destroys proteins in the membrane.

How does osmosis occur in real-life situations such as plants?

• A) Water evaporates from leaves.

• B) Water moves from soil into plant roots through a semi-permeable membrane.

• C) Plants store water in flowers only.

Why is the chloroplast vital for plant survival?

• A) It stores waste.

• B) It creates energy via photosynthesis.

• C) It protects against viruses.

Why do plant cells require a large central vacuole?

• A) To store extra proteins.

• B) To provide support and store water; without it, the cell may wilt.

• C) To move the plant around.

Which organelles are shared by both plant and animal cells?

• A) Ribosomes and mitochondria

• B) Chloroplasts and cell walls

• C) Central vacuole and nucleus

Why would a scientist choose to use an electron microscope instead of a light microscope when studying objects like viruses?

• A) Electron microscopes offer much higher magnification and resolution, allowing visualization at the molecular level.

• B) Electron microscopes use fluorescent light to enhance contrast, while light microscopes cannot.

• C) Electron microscopes are cheaper and more portable than light microscopes, making them more practical for virus studies.

What is the key advantage of using a stereo microscope compared to a compound light microscope?

• A) A stereo microscope allows for 3D imaging of objects, while a compound light microscope offers higher magnification for detailed internal structure observation.

• B) A stereo microscope is more cost-effective and simpler to use than a compound light microscope.

• C) A stereo microscope uses electron beams for higher resolution, while a compound light microscope uses visible light.