Biology- Ch. 1: The Invisible Living world

Lens

A piece of glass shaped like a lentil seed allowing a person to view small organisms and objects.

Robert Hooke

Discovered cells through a cork and published Micrographia in 1665.

Antonie Van Leeuwenheok

Father of Microbiology and the first person to ever view living cells.

Cell

The basic unit of life.

Parts of an Animal cell

Cell Membrane, Nucleus, Cytoplasm, Mitochondria.

Parts of a Plant cell

Cell Wall, Cell membrane, Nucleus, Cytoplasm, Mitochondria, Vacuole, Chloroplast.

Levels of Organization in the body of a living organism

Cell- Tissue- Organ- Organ System- Organism.

Largest cell in the world

Ostrich egg Yolk.

Organisms present in Pond water

Amoeba, Paramecium, Algae.

Organisms present in Soil Suspension

Bread Mould, Mould, Algae, Bacteria.

Manure

Naturally decomposed wastes by microorganisms rich in nutrients.

Biogas

A gas composed primarily of Carbon Dioxide and Methane, produced by anaerobic bacteria while they respire and break down substances for energy.

Ananda Mohan Chakrabarty

Developed a bacterium capable of breaking down oil spills in 1971 and patented it in 1980.

Microorganisms and food

Yeast (softening of dough) and Lactobacillus (Curdling of milk).

Microalgae

A food source that produces more than half of Earth’s total oxygen supply and cleans water while generating biofuel, which is currently under threat due to pollution and climate change. Eg: Spirulina, Chlorella, Diatoms etc.

Spirulina

A superfood rich in Vitamin B12 and protein.

Electron Microscope

A microscope capable of magnifying cells up to 10,00,000 times and is used to observe subcellular components.