autotroph

Encyclopedic entry. An autotroph is one organism that can develop its very own food making use of light, water, carbon dioxide, or various other chemicals. Because autotrophs produce their own food, they space sometimes called producers.

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An autotroph is one organism the can create its own food using light, water, carbon dioxide, or various other chemicals. Due to the fact that autotrophs produce their very own food, they are sometimes called producers.Plants are the most familiar form of autotroph, however there are many different kinds of autotrophic organisms. Algae, i beg your pardon live in water and whose larger forms are recognized as seaweed, is autotrophic. Phytoplankton, small organisms that live in the ocean, space autotrophs. Some species of bacteria room autotrophs. Many autotrophs use a procedure called photosynthesis to do their food. In photosynthesis, autotrophs use power from the sunlight to convert water from the soil and also carbon dioxide from the air into a nutrient referred to as glucose. Glucose is a form of sugar. The glucose gives plants energy. Plants likewise use glucose to make cellulose, a problem they use to grow and also build cell walls.All tree with green leaves, from the tiniest mosses to towering fir trees, synthesize, or create, their very own food with photosynthesis. Algae, phytoplankton, and also some bacteria also perform photosynthesis.Some rarely autotrophs develop food through a process called chemosynthesis, rather than v photosynthesis. Autotrophs that carry out chemosynthesis carry out not use power from the sun to create food. Instead, they do food using power from chemical reactions, often combining hydrogen sulfide or methane through oxygen. Biology that use chemosynthesis live in extreme environments, wherein the toxicity chemicals required for oxidation room found. Because that example, bacteria living in active volcanoes oxidize sulfur to develop their own food. At Yellowstone national Park in the U.S. States of Wyoming, Idaho, and Montana, bacteria qualified of chemosynthesis have actually been discovered in hot springs.Bacteria the live in the deep ocean, close to hydrothermal vents, likewise produce food with chemosynthesis. A hydrothermal vent is a narrow crack in the seafloor. Seawater look down with the crack into hot, partially melted rock below. The boiling-hot water then circulates back up into the ocean, loaded with minerals native the hot rock. These minerals incorporate hydrogen sulfide, which the bacteria use in chemosynthesis. Autotrophic bacteria that produce food v chemosynthesis have additionally been uncovered at areas on the seafloor called cold seeps. In ~ cold seeps, hydrogen sulfide and methane seep up from in ~ the seafloor and mix through the ocean water and also dissolved carbon dioxide. The autotrophic bacteria oxidize this chemicals to produce energy.

Autotrophs in the Food ChainTo explain a food chain—a summary of which organisms eat which other organisms in the wild—scientists group organisms right into trophic, or nutritional, levels. There are three trophic levels. Due to the fact that autotrophs carry out not consume various other organisms, they space the first trophic level. Autotrophs are eaten by herbivores, organisms that consume plants. Herbivores room the second trophic level. Carnivores, creatures that eat meat, and omnivores, creatures the eat all varieties of organisms, are the third trophic level. Herbivores, carnivores, and also omnivores room all consumers—they consume nutrients rather than making their own. Herbivores are main consumers. Carnivores and omnivores are an additional consumers.All food chains start with some type of autotroph (producer). Because that example, autotrophs such as grasses thrive in the Rocky Mountains. Mule deer space herbivores (primary consumers), which feed on the autotrophic grasses. Carnivores (secondary consumers) such as hill lions hunt and also consume the deer.In hydrothermal vents, the food chain’s producer is autotrophic bacteria. Major consumers such as snails and also mussels consume the autotrophs. Carnivores such as octopus consume the snails and mussels.An increase in the variety of autotrophs will usually lead to an increase in the number of animals the eat them. However, a diminish in the number and selection of autotrophs in one area deserve to devastate the whole food chain. If a wooded area burns in a woodland fire or is cleared to develop a shopping mall, herbivores such together rabbits can no longer uncover food. Few of the rabbits may move to a better habitat, and some might die. Without the rabbits, foxes and also other meat-eaters the feed on them also lose their food source. They, too, must move to survive.


Vocabulary

Term component of Speech definition

algae

plural noun

(singular: alga) diverse group that aquatic organisms, the largest of which are seaweeds.

autotroph

noun

organism the can create its own food and also nutrients from chemistry in the atmosphere, usually v photosynthesis or chemosynthesis.

bacteria

plural noun

(singular: bacterium) single-celled organisms discovered in every ecosystem ~ above Earth.

carbon dioxide

noun

greenhouse gas created by pets during respiration and also used by plants during photosynthesis. Carbon dioxide is additionally the byproduct of burning fossil fuels.

carnivore

noun

organism that eats meat.

cellulose

noun

complex carbohydrate that creates the tough, rigid cell wall surface of many plants and is crucial for such commodities as record and textiles.

cell wall

noun

tough, rigid, and also non-living barrier surrounding the soft cells of most autotrophs, such as plants.

chemosynthesis

noun

process through which some microbes rotate carbon dioxide and also water right into carbohydrates utilizing energy derived from not natural chemical reactions.

circulate

verb

to relocate around, regularly in a pattern.

cold seep

noun

marine setting where hydrogen sulfide and methane seep increase from beneath the seafloor and also mix through the ocean water.

consume

verb

to usage up.

consumer

noun

organism top top the food chain that depends on autotrophs (producers) or various other consumers for food, nutrition, and also energy.

convert

verb

to adjust from one thing to another.

decrease

verb

to lower.

devastate

verb

to destroy.

energy

noun

capacity to do work.

fir

noun

variety of jaw tree.

food

noun

material, commonly of tree or animal origin, the living organisms use to acquire nutrients.

food chain

noun

group of organisms linked in stimulate of the food they eat, from producer to consumers, and also from prey, predators, scavengers, and decomposers.

forest

noun

ecosystem filled with trees and underbrush.

fox

noun

type that mammal regarded a dog through a thin muzzle and also thick tail.

glucose

noun

"simple sugar" chemical produced by many plants throughout photosynthesis.

grass

noun

type that plant with narrow leaves.

habitat

noun

environment whereby an organism lives throughout the year or for much shorter periods that time.

herbivore

noun

organism that eats largely plants and other producers.

hot spring

noun

small flow of water flowing normally from an underground water source heated by hot or molten rock.

hydrogen sulfide

noun

chemical compound gas responsible because that the foul odor of rotten eggs.

hydrothermal

adjective

related to warm water, especially water cook by the Earth"s interior temperature.

increase

verb

to include or come to be larger.

methane

noun

chemical compound that is the an easy ingredient of natural gas.

mineral

noun

inorganic material that has actually a characteristic chemistry composition and specific crystal structure.

moss

noun

tiny tree usually discovered in moist, shady areas.

mountain lion

noun

large cat native to North and South America. Additionally called a cougar, puma, catamount, and panther.

mule deer

noun

large deer (mammal) with lengthy ears native to phibìc America.

mussel

noun

aquatic pet with two shells that deserve to open and also close for food or defense.

nutrient

noun

substance an organism requirements for energy, growth, and also life.

octopus

noun

marine pet (mollusk) through a soft body and also eight arms.

omnivore

noun

organism that eats a selection of organisms, consisting of plants, animals, and also fungi.

organism

noun

living or once-living thing.

oxidation

noun

chemical process of a substance combining v oxygen to readjust the substance"s physical and molecular structure.

photosynthesis

noun

process by which plants rotate water, sunlight, and also carbon dioxide right into water, oxygen, and basic sugars.

phytoplankton

noun

microscopic organism that stays in the ocean and can transform light power to chemical power through photosynthesis.

plant

noun

organism the produces its very own food v photosynthesis and whose cells have actually walls.

primary consumer

noun

organism that eats producers; herbivores.

producer

noun

organism on the food chain the can create its own energy and nutrients. Also called one autotroph.

rabbit

noun

mammal with long ears the hops on strong hind legs.

Rocky Mountains

noun

mountain selection in the western joined States and also Canada.

seafloor

noun

surface great of the bottom of the ocean.

seaweed

noun

marine algae. Seaweed have the right to be composed of brown, green, or red algae, and "blue-green algae," which is in reality bacteria.

secondary consumer

noun

organism the eats meat.

seep

verb

to slowly circulation through a border.

shrub

noun

type of plant, smaller sized than a tree however having woody branches.

snail

noun

marine or terrestrial pet (mollusk) v a shell and also one foot ~ above which that glides.

soil

noun

top great of the Earth"s surface where plants have the right to grow.

sugar

noun

type of chemical compound the is sweet-tasting and also in some type essential to life.

sulfur

noun

chemical element with the symbol S.

toxic

adjective

poisonous.

trophic level

noun

one of 3 positions on the food chain: autotrophs (first), herbivores (second), and also carnivores and also omnivores (third).

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volcano

noun

an opening in the Earth"s crust, with which lava, ash, and also gases erupt, and also the cone developed by eruptions.