SCIENCE Grade 10 Part-II Flashcards

Flashcards covering topics from the SCIENCE Grade 10 Part-II textbook, focusing on Biology, Chemistry, and Physics.

What is classification?

Grouping organisms into different levels based on their common characteristics.

What is natural classification?

A classification that depicts the evolutionary relationships among living organisms, considering morphological, physiological, cytological, and molecular biological features.

What is artificial classification?

It is an artifactual classification based on features such as the presence or absence of locomotive appendages of organisms and habitats etc, without depictting the evolutionary relationships among organisms

What are the three domains of life?

Archaea, Bacteria, and Eukarya

What are the key characteristics of Domain Archaea organisms?

They are prokaryotes that can live in extreme conditions and are resistant to most antibiotics.

What are the four kingdoms within Domain Eukarya?

Protista, Fungi, Plantae, and Animalia

What is Kingdom Protista?

A kingdom with eukaryotic unicellular or multicellular organisms that do not have specialized tissues. They live in water-associated environments and may be photosynthetic or heterotrophic.

What are the distinct characteristics of Kingdom Plantae?

Cells with cell walls containing cellulose and produce food through photosynthesis.

where Nitrogen found

It occurs as a free and diatomic gas in the atmosphere (78.1% by volume), is a component in animal and plant proteins and exists as a consitituent element in soil.

What are the properties of Sulphur

The element exists in different forms as allotropes in different crystalline and amorphous forms and shows properties of non-metals

What is electronegativity

the ability of an atom of an element to attract the electrons of a bond towards itself when it is bonded to an atom of another element

What are 3 features of animal cells

Absence of cell wall of plant cells, large content of cell.

What are 3 features of plant cells

Cell wall present, cytoplasm is pushed towards periphery and large centre vacuole

What are 3 features of Miosis

two divisions, takes place only in diploid cells. & variations that take place leads to chromosome anomalies

Define Nucleic acid

• Linear polymer made up of large number of nucleotides • genetical aspect.

What are signifance of Nucleic acids?

Important in storage of genetic information of organisms & in transferring genetic information from generation to generation.

What are react to form Lipids?

Fatty acids and glycerol

What are signifiance of Lipids?

As an energy source & conservation of water

Define speed

The rate at which a given distance is traversed.

Define Acceleration

The change in velocity per unit time.

What is meant by Resultant force?

A group of forces which can be replaced by a single force which describes the effect on the object.