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IGCSE Combined Science > Biology > Flashcards

Biology Flashcards

1
Q

Mrs Gren

A

Movement - Respiration - Sensitivity - Growth - Reproduction - Excretion - Nutrition

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2
Q

Animal cytoplasm is _ than plant cytoplasm

A

Denser

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3
Q

Storage form of Glucose

A

Starch&Glycogen

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4
Q

Autotrophic

A

Self-feeding

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5
Q

Proteins are broken down into

A

Amino acids

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6
Q

Lipids are broken down into

A

Fatty acids&glycerol

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7
Q

Emulsion Test

A

Ethanol/Water : test for lipid, positive showing milky white

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8
Q

Biuret Reagent

A

Test for protein, positive showing mauve/purple

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9
Q

Iodine Solution

A

Test for starch, positive showing deep blue/black

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10
Q

Benedict’s Reagent

A

Test for glucose, positive showing orange/brick red

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11
Q

Photosynthesis Equation

A

6CO2 + 6H2O > C6H12O6 + 6O2

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12
Q

Chlorophyll

A

Found in chloroplast, absorbs light energy transferring it into chemical energy

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13
Q

Ingestion

A

Taking of substance into body through mouth

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14
Q

Digestion

A

Breakdown of large, insoluble molecules into small(mechanical), aqueous molecules(chemical)

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15
Q

Amalyse breaks down _ to _

A

Starch simpler sugars

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16
Q

Protease breaks down _ to _

A

Protein amino acids

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17
Q

Lipase breaks down _ to _

A

Fats fatty acids and glycerol

18
Q

Pancreas secretes

A

Amalyse, protease and lipase

19
Q

Gastric juice is produced by _ which plays role in _

A

Stomach digestion

20
Q

Pancreatic juice is produced by _ which plays role in _

A

Pancreas absorption in small intestine

21
Q

Xylem

A

Delivers water&mineral ions up the stem

22
Q

Phloem

A

Carries the organic products of photosynthesis away

23
Q

Water pathway

A

Root hair cell - Root cortex cells - Xylem - Mesophyll cells

24
Q

Transpiration

A

Loss of water vapour due to high temperature and high diffusion gradient

25
Q

Components of Blood

A

Red/White blood cell platelets plasma

26
Q

Larynx

27
Q

Trachea

28
Q

Avelous

29
Q

Aerobic Respiration Equation

A

C6H12O6 + 6O2 > 6CO2 + 6H2O

30
Q

Adrenalin

A

High pulse widened pupils increase blood glucose concentration

31
Q

Cell elongation

A

Plant cells increase in length to grow

32
Q

Sepals

A

Protection

33
Q

Petals

A

Attraction of insects

34
Q

Ather

A

Male part of a flower

35
Q

Stigma

A

Female part of a flower

36
Q

Herbivore

A

Vegetarian animal (primary consumers)

37
Q

Canivore

A

Meat consuming animal

38
Q

Consumer

A

An organism that gets its energy by feeding on other organisms

39
Q

Producer

A

Autotrophic organism

40
Q

Eutrophication

A

Fertilisers/sewage polluting water, reducing oxygen level

IGCSE Combined Science (4 decks)

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