1answer.
Ask question
Login Signup
Ask question
All categories
  • English
  • Mathematics
  • Social Studies
  • Business
  • History
  • Health
  • Geography
  • Biology
  • Physics
  • Chemistry
  • Computers and Technology
  • Arts
  • World Languages
  • Spanish
  • French
  • German
  • Advanced Placement (AP)
  • SAT
  • Medicine
  • Law
  • Engineering
Ymorist [56]
3 years ago
12

The proximal tubule of the nephron in the kidney is composed of

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

Answer:

The proximal tubule of nephron in the kidney is composed of single layer of cuboidal cells that are covered with striated borders.

Explanation:

Proximal tubules or proximal convoluted tubule is an important part of vertebrate kidney which is located between bowman's capsule and loop of Henle.

Proximal tubules are divided into 2 parts- Proximal convoluted tubules and Proximal straight tubules.

Proximal convoluted tubules are located entirely to the renal cortex and the Proximal straight tubules descend into the outer  medulla.

The major function of Proximal tubules are mainly absorption and secretion.

The proximal tubules helps to regulate the pH from the filtration and also causes sodium reabsorption that is driven by P type ATPase.70% re absorption of sodium takes place in the proximal tubules through active transport.

Moreover elimination of ammonia takes place through proximal tubules by breaking glutamine to alpha ketoglutarate.

You might be interested in
If only a single member of a pair of chromosomes is present in a cell, it is a _____ condition and is most likely a _____ cell.
BartSMP [9]
Haploid; reproductive

After the halving of chromosomes, the cell becomes a haploid and this is done for gametes, or reproductive cells.
4 0
3 years ago
A cat is discovered with a very short tail. what would prove that this change was caused by a genetic mutation and not because t
insens350 [35]
The answer is d im trying to write as long as possible so i exceed the 20 character minimum limit so yea<span>
</span> 
4 0
3 years ago
Read 2 more answers
Maintenance of normal intracellular fluid volume depends largely on the intracellular concentration of _____ ions.
Pepsi [2]
Water is attracted to ions, such as sodium, potassium, phosphate, and chloride ions. Maintenance of normal intracellular fluid volume depends largely on the intracellular concentration of potassium and phosphate ions. Maintenance of extracellular water volume on the other hand depends primarily on the extracellular concentration of sodium and chloride ions.
3 0
3 years ago
What is a qualitative observation?
ad-work [718]

Answer:

A qualitative observation involves the use of five sensory organs, sight, smell, taste, touch, and hearing, and their function to examine the attributes. Being subjective in nature, it focuses on the characteristics and qualities of the variables rather than the numerical value.

Explanation:

mark as a brainliest answer if it helps you

6 0
2 years ago
Read 2 more answers
7th grade work PLEASE help
dolphi86 [110]

Answer:

1. Greenhouse gas -  Without greenhouse gases, the Earth would be a frozen planet.

2. Increase of oxygen - The increase of oxygen caused a cooling event.

3. Asteroid impacts  - Asteroid impacts caused climate catastrophes

4. Tectonic plates - Tectonic plates can warm or cool the planet

5. Cloud covering- Cloud cover complicates global warming

Explanation:

Explanations;

1. In the greenhouse effect, gases in the Earth’s atmosphere (such as carbon dioxide, methane and nitrous oxide) trap infra-red radiation from the Earth that would otherwise be radiated to space. Thanks to this natural process, the Earth’s surface has an average temperature of 15°C w1. Without these gases, our planet would be an icy -18°C, and life as we know it would not be possible.

2. Some 2.5 billion years ago, there was no oxygen in the Earth’s atmosphere. Although the Sun was less bright back then, our planet was habitable partly because the atmospheric concentration of methane was 1000 times greater than it is now. All this changed, however, with the Great Oxygenation Event, which was triggered by the presence of blue-green algaew5. These microscopic organisms had evolved to carry out photosynthesis, and they produced oxygen as a waste product.

3. Around 66 million years ago, the 10 km diameter Chicxulub asteroid collided with the Earth, resulting in the demise of the dinosaursw7. The impact threw dust into the stratosphere, which is thought to have blocked out 50% of the sunlight reaching the Earth. This would have compromised photosynthesis and led to the collapse of food chains. It would also have resulted in a dramatic fall in global temperatures, plunging the Earth into an ‘impact winter’ that would persist for a decade.

4. The Himalayan mountain range – formed as a result of the collision between the Indian and Eurasian tectonic plates – is a prime example of how plate tectonics can have an impact on climate. Over the past 50 million years, the slow uplift of the Himalayas has exposed new rock to chemical weathering. In this process, carbon dioxide from the atmosphere binds to certain minerals in the rock, reducing the amount of atmospheric carbon dioxide and cooling the planet.

5. Clouds have important consequences for the Earth’s climate. Low, thick clouds cool the Earth’s surface, while high, thin clouds warm the climate. Key to the formation of clouds are aerosols – tiny particles that are suspended in the atmosphere. They act as tiny ‘seeds’ on which water vapour condensesw10. Aerosols are much more than simply what you find in a hairspray can. They can be natural (such as dust or sea salt) or anthropogenic (such as pollutants or smoke). An increase in anthropogenic aerosols could therefore result in more cloud formation, which (depending on the cloud height) could potentially offset the full extent of global warming.

Just ask for more explanation, hope this helps.

6 0
2 years ago
Other questions:
  • "steroid hormones are synthesized from amino acids" <br> a. True <br> b. False
    11·1 answer
  • 4. The radius of a cylinder is 3x – 2 cm. The height of the cylinder is x + 3 cm. What is the surface area of the cylinder? Use
    7·2 answers
  • Which characteristic is common to all prokaryotes and eukaryotes?
    10·1 answer
  • An abnormal, rounded, solid lump above, within, or under the skin is a(n):
    6·1 answer
  • A willingness to accept different ideas that may not agree with their hypothesis is called what?
    8·1 answer
  • A mere is an SI unit. Which quantity might you measure in meters?
    12·1 answer
  • Which of the following is a primary consumer
    13·2 answers
  • Takes ______ energy from the light independent reactions and __________ from the air to produce _________.
    9·1 answer
  • 1. Regions of active cell division in plants
    11·1 answer
  • A(n) is the term used for any infectious agent that causes disease, such as parasites, bacteria, and viruses.
    13·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!