Excretion

What is the similarity of the process of excretion with the process of defecation?

What is the similarity of the process of excretion with the process of defecation?

More simply:- Excretion is the disposal of nitrogen-containing waste products of metabolism. Elimination (same as Defecation): is the passing of undigested materials out of the digestive compartment. This discussion on What is the difference between excretion and defecation?

  1. Is defecation a process of excretion?
  2. What is the difference between elimination and defecation?
  3. Why defecation is not considered as a process of excretion?
  4. What is the process excretion?
  5. What happens during a bowel movement?
  6. How is excretion different from elimination kids?
  7. What are faeces mainly made of?
  8. How do kidneys excrete waste?
  9. What is excretion in digestion?
  10. How do cells excrete waste?
  11. Why does our poop smell?
  12. How do the endocrine and excretory system work together?
  13. Does excretion involve other organs?
  14. Why is excretion a vital process in the human body?
  15. Can you eat your poop?
  16. What is excreted in feces?
  17. How much poop is inside?

Is defecation a process of excretion?

While defecation is occurring, the excretion of urine is usually stimulated.

What is the difference between elimination and defecation?

Elimination involves in the removal of wasted and indigestible food material from the body. Elimination includes defecation. Defecation is the removal of indigestible material. Feces are produced in the large intestine.

Why defecation is not considered as a process of excretion?

It is not directly formed from the major organs responsible for excretion (liver, kidneys, lungs and skin) and hence is not a result of metabolic reactions. That is why, feaces are not an excretory product.

What is the process excretion?

Excretion is a process in which metabolic waste is eliminated from an organism. ... These chemical reactions produce waste products such as carbon dioxide, water, salts, urea and uric acid. Accumulation of these wastes beyond a level inside the body is harmful to the body. The excretory organs remove these wastes.

What happens during a bowel movement?

The digestive system works by pushing food through the intestines which usually takes between 24 to 72 hours. Muscular contractions squeeze (peristalsis) the food through the different sections of the intestine. These different sections are separated by bands of muscles, or sphincters, which act as valves.

How is excretion different from elimination kids?

Elimination is the removal of unwanted materials out of the body. Specifically, it refers to the removal of undigested materials, occurring through feces, out of the body. Meanwhile, excretion is a method of elimination that removes the nitrogenous wastes out of the body through urine.

What are faeces mainly made of?

Fresh feces contains around 75% water and the remaining solid fraction is 84–93% organic solids. These organic solids consist of: 25–54% bacterial biomass, 2–25% protein or nitrogenous matter, 25% carbohydrate or undigested plant matter and 2–15% fat.

How do kidneys excrete waste?

The kidneys remove waste products called urea from the blood through tiny filtering units called nephrons. There are about one million nephrons in each kidney. Each nephron consists of a ball formed of small blood capillaries, called a glomerulus, and a small tube called a renal tubule.

What is excretion in digestion?

The final function of the digestive system is the excretion of waste in a process known as defecation. Defecation removes indigestible substances from the body so that they do not accumulate inside the gut.

How do cells excrete waste?

Cells use both diffusion and osmosis to get rid of their wastes. Cells can bias the movement of waste molecules out of and away from themselves. ... Another way is the make an oily molecule water-soluble, so that it can be dissolved in water and flushed away in the bloodstream.

Why does our poop smell?

It's perfectly normal for poop to have an unpleasant odor. The smell comes from bacteria in the colon that help break down digested food.

How do the endocrine and excretory system work together?

The excretory system works with the endocrine system to help maintain homeostasis. Chemical messengers called hormones signal the kidneys to filter more or less water or salt, depending on the levels of water and salt in the body. For example, when you sweat a lot the water content of your blood can drop.

Does excretion involve other organs?

Excretory Organs

Organs of excretion include the skin , liver , large intestine , lungs , and kidneys (see Figure 16.2. 2). Together, these organs make up the excretory system . They all excrete wastes, but they don't work together in the same way that organs do in most other body systems.

Why is excretion a vital process in the human body?

1. Excretion, as the term suggests, is a process of removal of toxic or pungent substances from the body. ... If excretion does not take place, these toxic substances would be a part of our blood. Then they will impurify vital organs such as the heart, the lungs, the liver, ultimately causing death of an organism.

Can you eat your poop?

According to the Illinois Poison Center, eating poop is “minimally toxic.” However, poop naturally contains the bacteria commonly found in the intestines. While these bacteria don't harm you when they're in your intestines, they're not meant to be ingested in your mouth.

What is excreted in feces?

feces, also spelled faeces, also called excrement, solid bodily waste discharged from the large intestine through the anus during defecation. Feces are normally removed from the body one or two times a day. About 100 to 250 grams (3 to 8 ounces) of feces are excreted by a human adult daily.

How much poop is inside?

According to the Centers for Disease Control (CDC) the average man in the U.S. weighs 195.7 pounds, and the average woman weighs 168.5 pounds. This means a man of average weight produces about 1 pound of poop and a woman of average weight produces about 14 ounces of poop per day, contained in your large intestine.

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