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Oksi-84 [34.3K]
3 years ago
5

Biological buffers work to keep pH in your body on a range of

Biology
1 answer:
saul85 [17]3 years ago
7 0

Biological buffers usually work to keep pH in your body on a range of 1500 - 3000.

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The _____ is the outer boundary of a cell that encloses its contents
lakkis [162]
The cell membrane is the oter boundary of a cell that encloses its contents 
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4 years ago
A body part that is reduced in size and no longer has a useful function in an organism is called an
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Would it be a vestigial remnant? Like the appendix?

3 0
3 years ago
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A surfactant (reduces/increases) the surface tension of water and tends to (promote/inhibit) emulsification.
s2008m [1.1K]

Answer:

Surfactants <u>reduces</u><u> surface tension of water </u>and <u>promotes</u><u> emulsification</u>.

Explanation:

Surfactant is generally an organic molecule or compound that is amphiphilic in nature. Surfactants can act perform as emulsifiers, detergents, foaming agents, dispersants and wetting agents.

Surfactants decreases the surface tension between the solid and liquid, gas and liquid and two liquids and can acts as emulsifying agents, cleaning agents, dispersing agents, foaming and anti-foaming agents.

8 0
3 years ago
Need an answer, please need an answer, please.<br>no copy on góogle​
DENIUS [597]

Answer:

hii there

i have worked on this but i have two answers so choosing is on you

Explanation:

Essay 1 )

In many people's opinions mans impact on the environment is a big issue in our life which is easily neglected, as humans are responsible for a staggering amount of damage on the earth. Nature manages its own components.

Since the outbreak of technology and industrialisation humans have greatly had a negative impact on the environment, such as; air pollution, habitat destruction, water pollution, the burning of rainforests and land pollution. In this essay I intend to give facts and discuss the effects and causes on these topics and discuss the solutions being carried out to improve the conditions.

Air pollution effects people in areas of emission sources, such as, power plants, local industry and major roads. Humans contribute to pollution by the use of machinery in industry causing pollution to the environment. More effects of air pollution on the environment involve using diesel fuel for vehicles and coal for power along with the lack of emission controls for vehicles and industry.

Another cause of air pollution is the greenhouse gas CO2, this gas warms the earth through living things as they emit CO2 when breathing which contributes to humans also, as we add to this statistic through breathing also. CO2 is usually thought to be involved with cars, aeroplanes and power plants, in the past 150 years , CO2 has been polluting our atmosphere through the sources mentioned, this is the highest CO2 emissions recorded for a long time. More causes of air pollution is methane gas which comes from swamps which are contributed to man through flooding. Cfc's are another major cause of air pollution by man through the use of fridges and deodorants (aerosols) which harms the earth's ozone layer.

Essay 2 )

In order to meet the basic needs of increases population, the present society has under taken a series of steps like rapid industrialization, unplanned urbanisation, deforestation, overexploitation of natural sources, etc.The outcomes of the above human activities have contributed significantly to the degradation of environment around us.

Some important impacts of human activities on environment are outlined below:

1. Deforestation:

In order to provide timber and farm land to increased population, large number of forest trees are cut and forest area is converting to farm lands. The rate of deforestation is so faster that around 1.5 million hectare of forest cover is lost every year is India alone. The process of deforestation results in decreasing rainfall, increasing global temperature, loss of top soil, modification of climatic conditions etc.

2. Industrialization:

Although the industrial activities of man provide basic need of the society, simultaneously the same release a lot of pollutants to the environment. The pollutants in environment cause loss of raw materials, health hazards, increase in death rate, damage to crop, making environment unfit for living organisms etc.

3. Loss of ecological balance:

The excessive use, misuse and mis-management of biosphere resources results in disturbance in ecosystem or ecological imbalance.

4. Air pollution:

The anthropogenic release of various air pollutants to the environment causes a number of dreaded phenomena like green house effect, ozone layer depletion, acid rain and smog formation etc.

5. Water pollution:

Human activities in respect of disposal of sewage wastes, solid wastes, municipal wastes, agricultural and industrial wastes cause the environment unfit for day to day use. Besides, polluted water spreads or leads to different diseases.

6. Increased consumption of natural resources:

Since the starting of industrial era, the natural resources are constantly utilised for the production of one or more products for the day to day use of society.

7. Production of waste:

Rapid industrialization and unplanned urbanization release a lot of toxic waste material either in solid or liquid or gaseous state which induces a number of serious environmental hazards.

8. Extinction of Wildlife:

Since forests are natural habitats of wild life (both plants and animals) deforestation leads to the extinction of valuable wild life and loss of biodiversity.

9. Habitual destruction:

The commercial and industrial activities associated with mining, construction of dams, fishing, agriculture etc. cause habitat destruction which is a pathway to pollution.

10. Noise pollution:

The man-made noise due to mechanized automobile, industries, trains, aero planes, social functions etc. causes noise pollution which has impact on both biotic and a biotic components of environment.

These are the human impacts on environment

hope it helps

have a nice day : )

8 0
3 years ago
Read 2 more answers
Open Ended Identify factors that can influence<br> enzyme activity. Describe the effect of each.
expeople1 [14]

<u>Temperature, pH, enzyme concentration, substrate concentration, and the existence of any inhibitors or activators</u> are a few of the variables that influence enzyme activity.

  • The rate of the reaction increases proportionally as the enzyme concentration rises. When diagnosing disorders, this feature is utilized to gauge the serum enzymes' activity.
  • The enzymes are highly sensitive to heat changes because they are proteins. Unlike typical chemical processes, enzyme activity is temperature-dependent. Each enzyme has a certain temperature range where it is more active, as you have seen. The ideal temperature, which falls between 37 and 40 degrees Celsius, is at this point.
  • When there is a certain amount of enzyme present, the rate of the enzymatic reaction rises as the concentration of the substrate rises until a limiting rate is achieved, after which additional increases in the concentration of the substrate have no effect on the reaction rate.
  • The most accurate way to estimate a solution's hydrogen ion concentration (H+) is to use the potential of hydrogen (pH). Additionally, it establishes whether the liquid is basic, acidic, or neutral. In general, liquids with a pH of 7 or lower are classified as acids, whereas liquids with a pH of 7 or higher are classified as bases or alkalines.
  • For optimal activity, several enzymes need specific inorganic metallic cations, such as Mg2+, Mn2+, Zn2+, Ca2+, Co2+, Cu2+, Na+, and K+. Anions are also occasionally required for enzymes.

learn more about enzyme activity here: brainly.com/question/13365011

#SPJ9

4 0
2 years ago
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