Indicate whether each statement describes only autotrophs, only heterotrophs, or both autotrophs and heterotrophs. These organisms use ATP for cellular work. 1. Autotrophs only These organisms are the producers of the biosphere. 2. Heterotrophs only These organisms rely on other organisms for food. 3. Both autotrophs and heterotrophs These organisms use cellular respiration. > > > >

Indicate whether each statement describes only autotrophs, only heterotrophs, or both autotrophs and heterotrophs. These organisms use ATP for cellular work. 1. Autotrophs only These organisms are the producers of the biosphere. 2. Heterotrophs only These organisms rely on other organisms for food. 3. Both autotrophs and heterotrophs These organisms use cellular respiration. > > > >

Biochemistry

6th Edition

ISBN:9781305577206

Author:Reginald H. Garrett, Charles M. Grisham

Publisher:Reginald H. Garrett, Charles M. Grisham

Chapter17: Metabolism: An Overview

Section: Chapter Questions

Problem 18P

See similar textbooks

Similar questions

The water in theYellowstone NationalPark hot springs shownhere is around 160°F(70°C). Biologistsassumed that no speciesof organisms couldlive in water aboveabout 130°F (55°C), sothey were surprisedto find several speciesof bacteria there, nowcalled thermophiles(“heat-lovers”). You’ve learned in this chapter how an enzymefrom one species, Thermus aquaticus, made feasible one of themost important DNA-based techniques used in labs today.Identify the enzyme, and indicate the value of its being isolatedfrom a thermophile. Suggest other reasons why enzymes fromthis bacterium (or other thermophiles) might also be valuable
are examples of autotrophs. [Select all that apply.] O Grasses O Grasshoppers O Frogs Hawks Snakes O Fungi
F4
Organisms which use light as an energy source and carbon dioxide as a source of carbon are called and organisms which require preformed organic molecules as a source of carbon and energy are called O photoheterotroph; chemoautotroph obligate anaerobe; obligate capnophile O chemoautotrophs; chemoheterotrophs O photoautotrophs; chemoheterotrophs
The movement of matter is _______________ in ecosystems, and the movement of energy is _________________. (a) linear; linear (b) linear; cyclic (c) cyclic; cyclic (d) cyclic; linear (e) cyclic; linear or cyclic
An organism characterized as a photoautotroph obtains energy from _____ and carbon from _______. (a) light; organic molecules (b) light; CO2 (c) organic molecules; organic molecules (d) organic molecules; CO2 (e) O2; CO2
1. Which of the following is NOT a possible disadvantage of using biomass as a form of energy? o low photosynthetic efficiencyo low potential supplyo soil erosiono possibly nonrenewable2. A(n) ___ absorbs and stores heat from the sun directly within a structure o active solar heating systemo passive solar heating systemo active nuclear energyo passive nuclear energy3. The__ is the name for a system that produces two useful forms of energy from one o regenerationo post-generationo degenerationo cogeneration4. If nuclear fusion reactors could be built successfully, which of the following would NOT be one of their advantages? o little risk from terroristo lower levels of radioactive wasteo low cost of operationso no carbon dioxide emissions5. Which form of power has more advantages and fewer disadvantages than any other energy source?o fuel cell powero hydroelectric powero solar powero wind power6. Which of the following is a by-product of burning hydrogen, taken from water, as a fuel?o…
Which of the following statements is true of chemoautotrophs? O They use hydrogen sulfide as their hydrogen source for the photosynthesis of their organic compounds. O They "feed themselves" by obtaining energy from the chemical bonds of organic molecules. O They oxidize inorganic compounds to obtain energy to drive the synthesis of their organic compounds. O They live as decomposers of inorganic chemicals in organic litter. O They obtain their energy from oxidizing chemical compounds and get their carbon skeletons from organic compounds. MacBook Pro Ca G Search or type URL 24 & * 3 5 6. E R Y K D.
Which of the following belongs to the thermochemical process of bioenergy production? O Combustion O Anaerobic digestion O Fermentation O Transesterification
Number 7 and 8 only
Why will alcoholic fermentation preserve the nutritive value of fruit juice or grains in the absence of refrigeration? O alcoholic fermentation will lower the pH to -1 thus killing all microbes who would use up the nutrients in the fruit juice of grain the ethanol/alcohol inhibits the growth of spoilage microbes which would destroy the nutritive value of the plant juice or grain O it won't- this is a trick question!! O alcoholic fermentation increases the salt concentration which in turn inhibits growth of spoilage microbes
It is not so difficult to imagine what it means to feedon the organic molecules that living things produce. Thatis, after all, what we do. But what does it mean to “feed” onsunlight, as phototrophs do? Or, even stranger, to “feed” onrocks, as lithotrophs do? Where is the “food,” for example,in the mixture of chemicals (H2S, H2, CO, Mn+, Fe2+, Ni2+,CH4, and NH4+) that spews from a hydrothermal vent?