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LC biology (sophie) > Characteristics Of Life 2.0 > Flashcards

Characteristics Of Life 2.0 Flashcards

1
Q

What is biology?

A

The study of life

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2
Q

What is biological organisation?

A

The different levels of complexity in an organism.

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3
Q

What must something have to be considered alive?

A
  1. Biological organisation
  2. Nutrition
  3. Excretion
  4. Response
  5. Reproduce
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4
Q

What is a cell?

A

The most basic part of an organism

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5
Q

What is tissue?

A

A group of cells

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6
Q

What is an organ?

A

A group of tissues working together for a similar function

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7
Q

What is an organ system?

A

A group of organs working together for a similar function

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8
Q

What is an organism?

A

A group of organ systems working together for a similar function

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9
Q

What does multicellular mean?

A

Made up of many cells

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10
Q

Give an example of a multicellular organism.

A

Humans

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11
Q

What does unicellular mean?

A

Made up of one cell

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12
Q

Give an example of a unicellular organism.

A

Bacteria

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13
Q

What is nutrition?

A

The way in which an organism obtains and uses food.

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14
Q

What is an autotrophic organism?

A

An organism that makes its own food

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15
Q

What is a heterotrophic organism?

A

An organism that must obtain its food from another living thing

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16
Q

What is excretion?

A

The removal of waste products of metabolism from an organism

17
Q

How do humans excrete?

A

•Breathing - CO2.
•Sweating - H2O+salt.
•Urinating - urea.
•Egestion - waste products from food.

18
Q

How do plants excrete?

A

Release of O2 by photosynthesis.

19
Q

What is metabolism?

A

The sum of all chemical reactions that occur in the cells of living organisms.

20
Q

What is catabolism?

A

These reactions use energy to break down large molecules into smaller ones.

21
Q

What is anabolism?

A

These reactions use energy to join small molecules together to form larger molecules.

22
Q

What is a population?

A

A group of organisms of the same species.

23
Q

What is response in biology?

A

The way in which living things react to their environment.

24
Q

Give examples of response in plants.

A

•Light
•Gravity

25
Q

Give examples of response in humans.

A

•Touch
•Taste
•Sound

26
Q

What is asexual reproduction?

A

Reproduction involving one parent in which the offspring is genetically identical to that parent.

27
Q

What is sexual reproduction?

A

Reproduction involving 2 parents

28
Q

What is diversity of life?

A

The large variety of living organisms present on Earth

29
Q

What is reproduction?

A

The way in which new offspring are produced from their parents

LC biology (sophie) (33 decks)

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