Biology Basics Quiz

Basic Unit of Life

• The cell is recognized as the fundamental unit of life in biology, capable of performing all life processes.
• Cells can be unicellular (single-celled organisms) or multicellular (organisms composed of multiple cells).

Photosynthesis

• Plants utilize the process of photosynthesis to convert sunlight into energy.
• During photosynthesis, plants take in carbon dioxide and water, using sunlight to produce glucose and oxygen.
• This process occurs primarily in the chloroplasts of plant cells, containing chlorophyll that captures light energy.

Role of DNA

• DNA (deoxyribonucleic acid) carries the genetic information necessary for the growth, development, and reproduction of living organisms.
• It is composed of nucleotide sequences that code for proteins essential for cellular functions.
• DNA is hereditary, meaning it is passed from parent to offspring, determining traits in organisms.

Energy-Providing Macromolecule

• Carbohydrates are the primary macromolecules responsible for providing energy to living organisms.
• Glucose, a simple sugar, is often used as a primary energy source for cells, with excess stored as glycogen in animals or starch in plants.

Homeostasis

• Homeostasis refers to the process by which organisms maintain a stable internal environment despite external changes.
• This includes regulating body temperature, pH levels, hydration, and other physiological conditions critical for survival.