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Dmitrij [34]
3 years ago
9

Assume that the import of a particular amino acid across the plasma membrane is observed (1) to occur only down its concentratio

n gradient and (2) to slow when a different but similar amino acid is added to the extracellular fluid. The movement of the amino acid through the membrane is most likely by
Biology
1 answer:
Studentka2010 [4]3 years ago
8 0

Answer:

The correct answer is - facilitated diffusion.

Explanation:

Facilitated diffusion is a form of facilitated transport of molecules such as amino acid, glucose, and others through the plasma membrane involving the passive or indirect movement of molecules along their concentration gradient, which is led by the presence of another molecule normally a pore or channel made up of integral protein.

Facilitated diffusion depends on several factors such as the size of molecules, type of molecules, similarity of molecules to extracellular matrix or fluid that slow or fast the diffusion process.

Thus, the correct answer is - facilitated diffusion.

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Particular life cycle.
Advocard [28]

Answer:

the sperm fertilizing the egg

Explanation:

3 0
3 years ago
Discuss the importance of a balanced diet.​
Aliun [14]

Answer:

u need a healthy diet cause it gives u the nutrients and energy u need to survive. ur body is more prone to disease n infections if u dont have a balanced diet. immune system weakens if u eat nutrient-poor foods. also here's something i copy-pasted from a random website:

revents diseases and infections. When you eat the full range of vitamins, minerals and other nutrients you improve your immune system and your healthy diet may even help prevent diseases like cancer, heart disease, diabetes, and stroke.

Helps you control your weight. Most people at some point want to lose weight or gain weight – eating a balanced diet helps you control your weight and maintain it over time. It is not feasible to be on a weight-loss diet forever – a balanced diet is the only way to healthily control your weight in the long term.

Improves your mental health. Getting the right mix of nutrients can help to ease symptoms of depression and anxiety – looking after yourself by eating well is essential as you take steps to good mental health.

Good for growth. A balanced diet is crucial for children and adolescents. As the body grows it is important to receive the right nutrients so that cells are built and maintained and the body grows at the right pace.

Better skin and hair. A healthy balanced diet also improves your looks. Eating well contributes to healthy skin and hair and a “glow” that makes you look younger.

this isnt very science-y but i tried to help the best i could so this should give u starting off point. have a great day/night

Explanation:

3 0
2 years ago
Which of these factors is associated with sustainable farming?
s344n2d4d5 [400]

Answer:

The answer is D. Food security

Explanation:

Sustainable Agriculture:

Sustainable agriculture or farming is a combination of agricultural policies, practices and measures that yield the maximum profits and benefits without negatively impacting the environment.

Sustainable agriculture, as an idea, basically means to utilizes resources responsibly so that the future generations can reap the benefits as well.

Sustainable Farming Approaches:

Approaches to sustainable farming include policy as well as farming technique interventions. Some of these methods are:

  • Crop rotations that involve planting diverse crops on a piece of land, as opposed to monoculture and intensive farming that gradually makes the soil nutrient deficient.
  • Cover cropping after a season of monoculture to prevent leaving the soil bare til the next season.
  • Use of renewable energy resources and integrated pet management to generate energy efficiently and minimize crop losses respectively.

Food Security:

Food security entails that healthy, nutritious and safe food is readily i.e. physically and economically available for all people. Food security is one of the major sustainability goals.

3 0
3 years ago
Read 2 more answers
All organisms must perform life-sustaining metabolic processes in order to survive.
Alik [6]

Explanation:

  • Unicellular organisms or single celled organisms that are made up only of one cell. Hence the name.
  • Unicellular organisms are further divided into Prokaryotic and Eukaryotic organisms
  • Examples of prokaryotic organisms are bacteria and Eukaryotic are protozoa and unicellular algae, however many eukaryotes are multi cellular as well.
  • These organisms have to carry out life sustaining metabolic processes for their survival.
  • These processes are metabolism, homeostasis and reproduction. Metabolism is important as it involves conversion of food into energy for cellular processes. Homeostasis for maintaining a constant internal physical and chemical conditions and reproduction is by cell division.
  • Multi cellular organisms as the name says unlike unicellular organisms consists of more than one cells.
  • Examples of multi cellular organisms are animals, land plants etc.,
  • Metabolic process in multi cellular organisms is a broad category of processes happening for these organisms which involves chemical reactions and pathways that happen at organismal state, transporting substances between the cells.
6 0
3 years ago
Read 2 more answers
Write non living characteristics of virus​
iogann1982 [59]

Answer:

non living characteristic of virus are:

1. have no cytoplasm or cellular organelles

2. carry out no metabolism on their own

3 0
3 years ago
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