(Biology) Iking

8/3/2019 (Biology) Iking

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“BALANCEIN

NATURE”

Nutrient Cycle and Energy Flow



WATER CYCLE

Water cycle is NATURAL CIRCULATION of

water in the Earth.

The continuous movement of water between the

land going to the atmosphere, atmosphere back

to land.



Processes of Water Cycle 1. PRECIPITATION. A movement of water from the

atmosphere to the Earth ( RAIN ).

2. EVAPORATION. The movement of water in theform of water vapor from the Earth to atmosphere.

3. TRANSPIRATION. The loss of water from plantsdue to evaporation.

4. CONDENSATION. The process by which watervapor turns into droplets of water.



ROLE OF LIVING THINGS

IN THE WATER CYCLE

1. PLANTS

Plants takes water through their roots

Plants takes off water from there leaves

(stomata).

2. ANIMALS

Animals drinks water.

It gives water through respiration.

3. HUMAN

Water is a basic ingredients of life.



CARBON – OXYGEN

CYCLE

Carbon – Oxygen cycle is a process in which there is a

exchange of gases.

Human are releasing carbon in which plants used forphotosynthesis.



THE 4 ROLES OF CARBON

1. Carbon – is a major building block in

organisms as it is a comport of

carbohydrates.

2. CO2 enters in plant as a raw material for

photosynthesis.



ROLES OF OXYGEN IN

CARBON-OXYGEN CYCLE

1. Oxygen is one of life’s major building block.

2. Oxygen is the acceptor of hydrogen atoms in the respiration.

3. Together with hydrogen atoms, oxygen is form into H2O

during respiration.

4. Oxygen enables heterotrophic cells to transform energy

through oxidation.



THE MAJOR LIFE PROCESS

IN CARBON-OXYGEN CYCLE

PHOTOSYNTHESIS. The process in which plants

make their own food.

RESPIRATION. The process of oxygen exchangeto carbon dioxide.



ROLE OF LIVING THINGS IN

THE CARBON-OXYGEN

CYCLE

Plants utilize CO2

in the process of photosynthesis.

Animals utilize O2 to break down food.



THE NITROGEN CYCLE

The nitrogen cycle is a circulation of vital

chemical substances within an ecosystem.

Nitrogen Cycle, natural cyclic process in the

course of which atmospheric nitrogen enters

the soil and becomes part of living

organisms, before returning to the

atmosphere.



PROCESS INVOLVE IN

NITROGEN CYCLE

1. Ammonification – the

process of releasing

ammonia ( NH2 ) From

decaying protein bymeans of bacteria action.

2. Nitrification – refers

to the action of a

group of solid

bacteria, producing

nitrates.

3. Denitrification – carried

out by denitrifying bacteria

which breaks down

ammonia, nitrates, nitrites.4. Nitrogen fixation – process

by which a certain bacteria

in the soil of leguminous

plants converts N2 intocompounds that the plants

use.



ROLE OF NITROGEN IN

LIVING THINGS

Protein is made up of amino acid.

Amino acid is made up of amino acid group. Amino acid group is made up of one atom of

nitrogen and two atoms of hydrogen.



THE FLOW OF NITROGEN

IN THE CYCLE Gaseous nitrogen composes

of 78% of our atmosphere inthe form of a two-atommolecule.

Plant can’t use nitrogendirectly as a nutrient.

Nitrogen-fixation, bacteriacan utilize in atmosphere.

Nitrogen fixation, nitrogenfrom the air is convertedonto nitrates.

Plants absorb NO3 as agroup of soil minerals.

Sulfur and phosphate areadded from soil minerals

Nitrogen is released fromdecaying proteins and

combines with H2 to formammonia, a process calledammonification.

Nitrite, further acted uponchemically by other bacteria

resulting in the formation of the more usable nitrates.



THE ROLE OF LIVING THINGS

IN THE NITROGEN CYCLE

Pants – play a key role in

that they absorb simplenitrogen containingcompounds from the soil orwater incorporating theseinto complex compounds of

life. Animals – they become

involve only when they eatplans, thus absorbing theprotein.

Human – to have an

increase yield of agriculturalplants, the large-scale of fixed N2 to enhance the soilto fertile. Human also inputeutriphication process by

which lakes or anyfreshwater in ecosystemslowly become shallow bythe accumulation of deadplant material.



ENERGY FLOW IN THE

ECOSYSTEM

FOOD CHAIN – food chain is the most

important bases of interaction among species

in a community is food. food chain is the

transfer of sun’s energy from producer to

consumer as organisms feed on one another.



FOOD WEB

FOOD WEB – each species has more than one

than a predator, each of which in turn is prayed

upon by more than one species. The food web

is a intricate pattern formed, wherein there is

an overlapping set of relationship.



TROPIC LEVEL

The tropic level are several feeding grouping

which producers and the consumer in the

ecosystem can be arranged. Each tropic level

contain at any time a certain amount of living

material composed of different kinds of

organisms.





GROUP 2 MEMBERS

*GALI

*CASTILLO

*FERNANDEZ

* AMPONG

*BULANON*CADURNIGARA

*CANTONES

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