Cell History Quiz

The cell is the smallest structural and functional unit of living organisms.

Cells were first discovered in 1665 by Robert Hooke using a microscope.

Protoplasm is the living substance within a cell, discovered by Felix Dujardin.

Matthias Schleiden concluded that plants are made up of cells.

An organ system is a group of organs working together to perform specific functions.

The excretory system removes waste from animals and plants.

The respiratory system is responsible for gas exchange in living beings.

The reproductive system enables the formation of new offspring.

The circulatory system transports materials in organisms using blood or sap.

Unicellular organisms consist of a single cell.

Prokaryotes are simple cells without distinct nuclei, e.g., bacteria.

Eukaryotes have complex cells with distinct nuclei and organelles.

Bryophytes are simple plants lacking true roots, stems, and leaves.

Complex organisms benefit from specialization and adaptation.

Complex organisms face challenges like diffusion difficulties and waste removal.

Tracheophytes have true roots, stems, and leaves, unlike bryophytes.

A tissue is a group of similar cells that work together for a specific function.

An organ is formed of similar tissues that perform a specific function.

Examples include heart, kidneys, and brain; each performs specific functions.

Life is organized in levels from cells to systems, building complexity.

Cells in higher plants include phloem and xylem; animals have nerve and blood cells.

Amoeba, Paramecium, and Euglena are examples of unicellular organisms.

As organisms become multicellular, complexity and specialization increase.

Skin is the largest organ in humans, protecting underlying tissues.

Kidneys are crucial for filtering waste from the blood in animals.

The heart pumps blood, delivering oxygen and nutrients throughout the body.

The brain coordinates activity and processes information within the body.

Sap transports nutrients and water in plants, acting like blood in animals.

Vascular bundles in plants consist of xylem and phloem, aiding transport.

Ovaries are female reproductive organs responsible for producing eggs.

Testes are male reproductive organs responsible for producing sperm.