Biology Words

Biology Words — Questions & Answers

Dive into Biology Words with this curriculum-aligned educational Trivia Quiz for Grade 7-8. This medium challenge helps students understand key Science concepts through interactive learning. Ideal for reinforcing classroom lessons and building subject mastery.

1. What is the basic unit of all living organisms?

   Atom Molecule Cell Tissue

   ✓ Cell

   The cell is the smallest structural and functional unit of all known living organisms. It is the basic building block of life.

2. Which process do plants use to convert light energy into chemical energy?

   Respiration Transpiration Photosynthesis Fermentation

   ✓ Photosynthesis

   Photosynthesis is the process by which green plants and some other organisms use sunlight to synthesize foods with the help of chlorophyll pigment.

3. What is the jelly-like substance that fills a cell and surrounds the organelles?

   Nucleus Mitochondria Cytoplasm Ribosome

   ✓ Cytoplasm

   Cytoplasm is the material or protoplasm within a living cell, excluding the nucleus. It includes the cytosol, organelles, and various inclusions.

4. What is the powerhouse of the cell, responsible for generating most of the cell's supply of adenosine triphosphate (ATP)?

   Endoplasmic Reticulum Golgi Apparatus Lysosome Mitochondrion

   ✓ Mitochondrion

   Mitochondria are often called the 'powerhouses' of the cell because they generate most of the cell's energy supply through cellular respiration.

5. What is the genetic material found in the nucleus of most living cells?

   Protein Carbohydrate DNA Lipid

   ✓ DNA

   DNA (Deoxyribonucleic Acid) carries the genetic instructions for the development, functioning, growth, and reproduction of all known organisms.

6. What is the process by which organisms with traits better suited to their environment tend to survive and reproduce more offspring?

   Genetic Drift Natural Selection Artificial Selection Mutation

   ✓ Natural Selection

   Natural Selection is a key mechanism of evolution, where organisms with advantageous traits are more likely to survive and pass those traits on.

7. What is the term for a group of similar cells that perform a specific function?

   Organ System Tissue Organelle

   ✓ Tissue

   A tissue is a group of similar cells and their intercellular substance that work together to perform a specific function.

8. Which organelle is responsible for protein synthesis within a cell?

   Nucleolus Vacuole Ribosome Chloroplast

   ✓ Ribosome

   Ribosomes are responsible for synthesizing proteins by translating the genetic information encoded in messenger RNA (mRNA).

9. What is the process of water movement across a semipermeable membrane from an area of high water concentration to an area of low water concentration?

   Diffusion Active Transport Osmosis Facilitated Diffusion

   ✓ Osmosis

   Osmosis is a specific type of diffusion that involves the movement of water molecules across a selectively permeable membrane.

10. What is the system in plants that transports water and dissolved minerals from the roots to the rest of the plant?

    Phloem Xylem Stomata Epidermis

    ✓ Xylem

    Xylem is the vascular tissue in plants that conducts water and dissolved nutrients upward from the root and also helps to form woody tissue.