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COPY IGCSE Biology > 1. Characteristics and classification of living organisms > Flashcards

1. Characteristics and classification of living organisms Flashcards

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1
Q

What is movement?

A

the action of an organism or a part of it which causes a change in position/place

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2
Q

What is respiration?

A

chemical reaction that takes place in cells which break down nutrient molecules, releasing energy (for metabolism)

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3
Q

What is sensitivity?

A

the ability to detect and respond to changes in the internal/external environment

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4
Q

What is growth?

A

the permanent increase in size and dry mass

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5
Q

What is reproduction?

A

the process which makes more of the same type of organism

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6
Q

What is excretion?

A

removal of toxic waste products of metabolism and of substances which are in excess

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7
Q

What is nutrition?

A

the taking in of nutrients/materials for growth, energy and development

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8
Q

What are some examples of excretory products?

A

CO2, urea and sweat

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9
Q

What are some processes of excretion?

A

exhaling + gas exchange
urination
thermoregulation

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10
Q

What is egestion?

A

removal of undigested material as faeces

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11
Q

What is an example of sensitivity?

A

leaves changing direction to face sun

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12
Q

What are the main features used to group animals/plants into their kingdoms?

A

movement
respiration
sensitivity
growth
reproduction
excretion
nutrition

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13
Q

What are leaves from monocotyledons like?

A

they have parallel leaf veins

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14
Q

What are leaves from dicotyledons like?

A

have reticulated leaf veins (web-like)

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15
Q

What are flowers from dicotyledons like?

A

petals in multiples of 4/5

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16
Q

What are flowers from monocotyledons like?

A

petals in multiples of 3

17
Q

What are features of the animal kingdom?

A

move
sexual reproduction
cells have nucleus
multicellular
respire through mitochondria and cytoplasm
both passive and active mechanism
heterotrophic nutrition

18
Q

Which kingdoms are or can be heterotrophic?

A

animal, prokaryote, protist and fungi (all except plant)

19
Q

Which is the only only autotrophic kingdom?

A

plant

20
Q

Which kingdom contains only unicellular organisms?

A

prokaryote

21
Q

What two kingdoms can use active mechanism of excretion?

A

animal and plant

22
Q

What are the features (simple structure) of viruses?

A

protein coat and genetic material

23
Q

Which kingdom only contains organisms with no nucleus?

A

prokaryote

COPY IGCSE Biology (24 decks)

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