characteristics of living organisms Flashcards

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1
Q

Characteristics of living organisms:
MRS GRENH

A

Movement
Respiration
Sensitivity
Growth
Reproduction
Excretion
Nutrition
Homeostasis

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2
Q

Movement:

A

When an organism changes position or place

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3
Q

Respiration:

A

To release/produce energy aerobically or anaerobically

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4
Q

Sensitivity:

A

Detects stimuli and responds to them

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5
Q

Growth:

A

To increase in size/ mass

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6
Q

Reproduction:

A

Can have offspring either sexually or asexually

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7
Q

Excretion:

A

To remove toxic waste that is produced in the body

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8
Q

Nutrition:

A

Can absorb nutrients in order to use them for growth/ repair

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9
Q

Levels of organisations in organisms:

A

organelles
cells
tissues
organs
organ system

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10
Q

organelles

A

A component inside a cell that carries out a particular task

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11
Q

cells

A

basic functional unit of living organisms

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12
Q

tissue

A

a collection of similar cells, carrying out a particular function within an organ

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13
Q

organ

A

A collection of different tissues that work together to perform a common function

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14
Q

organ system

A

groups of organs working together to perform an overall function for the organism

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15
Q

Cell structure in animal cells:

A

Nucleus
Cytoplasm
Ribosomes
Cell membrane
Mitochondria

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16
Q

Nucleus:

A

Contains genetic material, controls activity in cell

17
Q

Cell Membrane:

A

Controls what comes in and out of the cell.
Contains receptor molecules

18
Q

Cytoplasm:

A

-Jell-like substance where chemical reaction occurs.
- Contains enzymes and proteins. Organelles are found in it

19
Q

Mitochondria:

A

Where aerobic respiration occurs

20
Q

Ribosomes:

A

Where protein synthesis occurs

21
Q

Structures in plant cells:

A

-Cell wall
-Nucleus
-Vacuole
-Cytoplasm
-Chloroplasts
-Cell Membrane
-Mitochondria
-Ribosomes

22
Q

Vacuole:

A

-Stores cell sap
Improves cell’s rigidity

23
Q

Chloroplasts:

A

Contain chlorophyll pigments that absorb light from the sun

24
Q

Cell Wall

A

Provide strength to the cell
Made out of cellloluse

25
Q

Excretion vs Egestion

A
  • Excretion is removal of toxic waste, waste metabolism and excess substances
  • Egestion is passing out of undigested food
26
Q

Organelles FOUND IN PLANTS NOT IN ANIMALS (3)

A
  • Chloroplasts
  • Cell Wall
  • Vacuole