autotroph

Encyclopedic entry. An autotroph is one organism the can produce its very own food utilizing light, water, carbon dioxide, or various other chemicals. Because autotrophs develop their very own food, they are sometimes referred to as producers.

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An autotroph is an organism that can create its very own food utilizing light, water, carbon dioxide, or various other chemicals. Because autotrophs develop their own food, they are sometimes referred to as producers.Plants space the many familiar kind of autotroph, yet there are many different type of autotrophic organisms. Algae, i beg your pardon live in water and whose larger creates are known as seaweed, is autotrophic. Phytoplankton, tiny organisms that live in the ocean, space autotrophs. Some species of bacteria are autotrophs. Most autotrophs use a procedure called photosynthesis to make their food. In photosynthesis, autotrophs use energy from the sunlight to transform water from the soil and also carbon dioxide indigenous the air into a nutrient referred to as glucose. Glucose is a kind of sugar. The glucose provides plants energy. Plants additionally use glucose to do cellulose, a substance they use to grow and also build cell walls.All plants with green leaves, indigenous the tiniest mosses come towering fir trees, synthesize, or create, their own food through photosynthesis. Algae, phytoplankton, and also some bacteria likewise perform photosynthesis.Some rarely autotrophs develop food v a procedure called chemosynthesis, quite than through photosynthesis. Autotrophs that carry out chemosynthesis carry out not use power from the sunlight to develop food. Instead, they do food using energy from chemistry reactions, regularly combining hydrogen sulfide or methane with oxygen. Biology that usage chemosynthesis live in too much environments, whereby the toxicity chemicals essential for oxidation room found. Because that example, bacteria life in active volcanoes oxidize sulfur to produce their very own food. At Yellowstone nationwide Park in the U.S. Claims of Wyoming, Idaho, and also Montana, bacteria qualified of chemosynthesis have actually been uncovered in warm springs.Bacteria the live in the deep ocean, close to hydrothermal vents, additionally produce food with chemosynthesis. A hydrothermal vent is a narrow crack in the seafloor. Seawater seeps down through the crack into hot, partly melted rock below. The boiling-hot water climate circulates ago up right into the ocean, loaded v minerals indigenous the warm rock. This minerals include hydrogen sulfide, which the bacteria use in chemosynthesis. Autotrophic bacteria that develop food v chemosynthesis have additionally been found at locations on the seafloor referred to as cold seeps. At cold seeps, hydrogen sulfide and also methane seep up from beneath the seafloor and mix v the s water and dissolved carbon dioxide. The autotrophic bacteria oxidize these chemicals to produce energy.

Autotrophs in the Food ChainTo explain a food chain—a description of which organisms eat which various other organisms in the wild—scientists team organisms into trophic, or nutritional, levels. There space three trophic levels. Due to the fact that autotrophs perform not consume other organisms, they room the an initial trophic level. Autotrophs are consumed by herbivores, organisms the consume plants. Herbivores room the second trophic level. Carnivores, creatures the eat meat, and also omnivores, creatures the eat all varieties of organisms, are the 3rd trophic level. Herbivores, carnivores, and omnivores are all consumers—they consume nutrients fairly than making your own. Herbivores are major consumers. Carnivores and also omnivores are second consumers.All food chains begin with some kind of autotroph (producer). Because that example, autotrophs such together grasses thrive in the Rocky Mountains. Mule deer are herbivores (primary consumers), which feed on the autotrophic grasses. Carnivores (secondary consumers) together as mountain lions hunt and also consume the deer.In hydrothermal vents, the food chain’s producer is autotrophic bacteria. Primary consumers such together snails and also mussels consume the autotrophs. Carnivores such as octopus consume the snails and also mussels.An increase in the number of autotrophs will normally lead to an increase in the number of animals that eat them. However, a decrease in the number and variety of autotrophs in one area deserve to devastate the entire food chain. If a wooded area burns in a forest fire or is clearing to build a to buy mall, herbivores such as rabbits have the right to no longer uncover food. Several of the rabbits may move come a much better habitat, and some might die. There is no the rabbits, foxes and other meat-eaters the feed ~ above them additionally lose your food source. They, too, must relocate to survive.


Vocabulary

Term part of Speech meaning

algae

plural noun

(singular: alga) varied group the aquatic organisms, the largest of which room seaweeds.

autotroph

noun

organism the can develop 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 top top Earth.

carbon dioxide

noun

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

carnivore

noun

organism the eats meat.

cellulose

noun

complex carbohydrate that develops the tough, strict cell wall of most plants and also is essential for such products as paper and textiles.

cell wall

noun

tough, rigid, and also non-living obstacle surrounding the soft cell of most autotrophs, such together plants.

chemosynthesis

noun

process by which some microbes rotate carbon dioxide and water right into carbohydrates using energy acquired from inorganic chemical reactions.

circulate

verb

to relocate around, often in a pattern.

cold seep

noun

marine atmosphere where hydrogen sulfide and also methane seep up from in ~ the seafloor and mix with the s water.

consume

verb

to use up.

consumer

noun

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

convert

verb

to adjust from one point to another.

decrease

verb

to lower.

devastate

verb

to destroy.

energy

noun

capacity to perform 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 attached in order of the food castle eat, from producer to consumers, and from prey, predators, scavengers, and also decomposers.

forest

noun

ecosystem filled through trees and underbrush.

fox

noun

type the mammal pertained to a dog through a slim muzzle and thick tail.

glucose

noun

"simple sugar" chemical produced by countless plants during photosynthesis.

grass

noun

type that plant v narrow leaves.

habitat

noun

environment wherein an organism stays throughout the year or for shorter periods of time.

herbivore

noun

organism the eats greatly plants and other producers.

hot spring

noun

small circulation of water flowing normally from an secret water resource heated by warm or molten rock.

hydrogen sulfide

noun

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

hydrothermal

adjective

related to warm water, particularly water heated by the Earth"s internal temperature.

increase

verb

to add or become larger.

methane

noun

chemical compound that is the simple ingredient of herbal gas.

mineral

noun

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

moss

noun

tiny tree usually uncovered in moist, shady areas.

mountain lion

noun

large cat aboriginal to North and also South America. Also called a cougar, puma, catamount, and also panther.

mule deer

noun

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

mussel

noun

aquatic animal with two shells that deserve to open and also close because that food or defense.

nutrient

noun

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

octopus

noun

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

omnivore

noun

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

organism

noun

living or once-living thing.

oxidation

noun

chemical procedure of a problem combining through oxygen to readjust the substance"s physical and also molecular structure.

photosynthesis

noun

process through which plants turn water, sunlight, and carbon dioxide right into water, oxygen, and simple sugars.

phytoplankton

noun

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

plant

noun

organism that produces its own food through photosynthesis and whose cells have walls.

primary consumer

noun

organism the eats producers; herbivores.

producer

noun

organism on the food chain that can produce its very own energy and also nutrients. Also called an autotroph.

rabbit

noun

mammal with long ears that hops on solid hind legs.

Rocky Mountains

noun

mountain selection in the western joined States and also Canada.

seafloor

noun

surface layer of the bottom that the ocean.

seaweed

noun

marine algae. Seaweed can be written of brown, green, or red algae, as well as "blue-green algae," i beg your pardon 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 yet having woody branches.

snail

noun

marine or terrestrial pet (mollusk) with a shell and one foot ~ above which it glides.

soil

noun

top class of the Earth"s surface where plants can grow.

sugar

noun

type of chemistry compound that is sweet-tasting and in some type essential come life.

sulfur

noun

chemical facet with the prize S.

toxic

adjective

poisonous.

trophic level

noun

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

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volcano

noun

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