autotroph

Encyclopedic entry. An autotroph is an organism the can produce its 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 one organism the can create its very own food utilizing light, water, carbon dioxide, or various other chemicals. Due to the fact that autotrophs develop their very own food, they are sometimes called producers.Plants space the many familiar form of autotroph, however there are numerous different type of autotrophic organisms. Algae, i m sorry live in water and also whose larger forms are recognized as seaweed, is autotrophic. Phytoplankton, small organisms that live in the ocean, are autotrophs. Some varieties of bacteria room autotrophs. Most autotrophs use a process called photosynthesis to make their food. In photosynthesis, autotrophs use power from the sunlight to transform water from the soil and carbon dioxide native the air right into a nutrient referred to as glucose. Glucose is a kind of sugar. The glucose offers plants energy. Plants additionally use glucose to make cellulose, a substance they usage to grow and also build cabinet 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 some bacteria also perform photosynthesis.Some rare autotrophs create food through a procedure called chemosynthesis, fairly than v photosynthesis. Autotrophs that execute chemosynthesis carry out not use energy from the sunlight to produce food. Instead, they do food using energy from chemistry reactions, regularly combining hydrogen sulfide or methane v oxygen. Biology that usage chemosynthesis live in excessive environments, wherein the toxicity chemicals necessary for oxidation space found. Because that example, bacteria life in energetic volcanoes oxidation sulfur to create their own food. At Yellowstone nationwide Park in the U.S. Says of Wyoming, Idaho, and also Montana, bacteria qualified of chemosynthesis have actually been uncovered in hot springs.Bacteria that live in the deep ocean, close to hydrothermal vents, likewise produce food v chemosynthesis. A hydrothermal vent is a narrow crack in the seafloor. Seawater seeps down with the crack right into hot, partly melted absent below. The boiling-hot water then circulates ago up right into the ocean, loaded with minerals from the warm rock. This minerals incorporate hydrogen sulfide, which the bacteria usage in chemosynthesis. Autotrophic bacteria that develop food with chemosynthesis have likewise been discovered at areas on the seafloor referred to as cold seeps. At cold seeps, hydrogen sulfide and also methane seep up from in ~ the seafloor and mix v the s water and also dissolved carbon dioxide. The autotrophic bacteria oxidize this chemicals to develop energy.

Autotrophs in the Food ChainTo describe a food chain—a summary of which biology eat which other organisms in the wild—scientists team organisms into trophic, or nutritional, levels. There room three trophic levels. Since autotrophs carry out not consume other organisms, they space the first trophic level. Autotrophs are consumed by herbivores, organisms that consume plants. Herbivores space the 2nd trophic level. Carnivores, creatures the eat meat, and also omnivores, creatures the eat all species of organisms, room the 3rd trophic level. Herbivores, carnivores, and omnivores space all consumers—they consume nutrients quite than making your own. Herbivores are primary consumers. Carnivores and omnivores are second consumers.All food chains start with some form of autotroph (producer). Because that example, autotrophs such as grasses prosper in the Rocky Mountains. Mule deer room herbivores (primary consumers), which feeding on the autotrophic grasses. Carnivores (secondary consumers) together as hill lions hunt and also consume the deer.In hydrothermal vents, the food chain’s producer is autotrophic bacteria. Primary consumers such as snails and mussels consume the autotrophs. Carnivores such together octopus consume the snails and mussels.An boost in the variety of autotrophs will typically lead to rise in the number of animals the eat them. However, a decrease in the number and selection of autotrophs in one area can devastate the whole food chain. If a wooded area burns in a woodland fire or is cleared to develop a shopping mall, herbivores such as rabbits have the right to no longer uncover food. Some of the rabbits may move come a far better habitat, and also some might die. Without the rabbits, foxes and also other meat-eaters that feed on them likewise lose your food source. They, too, must relocate to survive.


Vocabulary

Term component of Speech an interpretation

algae

plural noun

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

autotroph

noun

organism the can develop its very own food and nutrients from chemicals in the atmosphere, usually through photosynthesis or chemosynthesis.

bacteria

plural noun

(singular: bacterium) single-celled organisms found in every ecosystem on Earth.

carbon dioxide

noun

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

carnivore

noun

organism that eats meat.

cellulose

noun

complex carbohydrate that creates the tough, strictly cell wall of most plants and also is important for such products as file and textiles.

cell wall

noun

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

chemosynthesis

noun

process by which some microbes revolve carbon dioxide and also water into carbohydrates using energy acquired from not natural chemical reactions.

circulate

verb

to relocate around, frequently in a pattern.

cold seep

noun

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

consume

verb

to usage up.

consumer

noun

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

convert

verb

to readjust from one point 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 plant or animal origin, the living organisms use to achieve nutrients.

food chain

noun

group the organisms attached in stimulate of the food they eat, from producers to consumers, and from prey, predators, scavengers, and decomposers.

forest

noun

ecosystem filled with trees and underbrush.

fox

noun

type that mammal related to a dog with a thin muzzle and thick tail.

glucose

noun

"simple sugar" chemical created by numerous plants during photosynthesis.

grass

noun

type that plant through narrow leaves.

habitat

noun

environment whereby an organism resides throughout the year or for much shorter periods of time.

herbivore

noun

organism that eats mainly plants and other producers.

hot spring

noun

small circulation of water flowing naturally from an secret water resource heated by hot or molten rock.

hydrogen sulfide

noun

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

hydrothermal

adjective

related to hot water, especially water cook by the Earth"s internal temperature.

increase

verb

to add or become larger.

methane

noun

chemical compound the is the straightforward ingredient of organic gas.

mineral

noun

inorganic product that has actually a characteristic chemical composition and particular crystal structure.

moss

noun

tiny tree usually uncovered in moist, shady areas.

mountain lion

noun

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

mule deer

noun

large deer (mammal) with long ears indigenous to phibìc America.

mussel

noun

aquatic animal with 2 shells that can open and close because that food or defense.

nutrient

noun

substance one organism needs for energy, growth, and life.

octopus

noun

marine animal (mollusk) v a soft body and also eight arms.

omnivore

noun

organism the eats a variety of organisms, including plants, animals, and also fungi.

organism

noun

living or once-living thing.

oxidation

noun

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

photosynthesis

noun

process whereby plants rotate water, sunlight, and also carbon dioxide into water, oxygen, and simple sugars.

phytoplankton

noun

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

plant

noun

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

primary consumer

noun

organism that eats producers; herbivores.

producer

noun

organism top top the food chain the can produce its own energy and nutrients. Additionally called one autotroph.

rabbit

noun

mammal with lengthy ears the hops on solid hind legs.

Rocky Mountains

noun

mountain selection in the western unified States and also Canada.

seafloor

noun

surface layer of the bottom the the ocean.

seaweed

noun

marine algae. Seaweed can be created of brown, green, or red algae, as well as "blue-green algae," i m sorry is actually bacteria.

secondary consumer

noun

organism that eats meat.

seep

verb

to slowly circulation through a border.

shrub

noun

type that plant, smaller sized than a tree yet having woody branches.

snail

noun

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

soil

noun

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

sugar

noun

type of chemistry compound the is sweet-tasting and in some kind essential to 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 also omnivores (third).

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volcano

noun

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