What are the main excretory organs in humans?

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Chapter 16 NCERT Class 11 Biology SOLUTIONS

Question:

Do all animals excrete waste?

Answer:

Yes, all animals excrete waste because metabolic reactions inside their bodies produce harmful substances. The form and method of excretion vary across species.

Chapter 16 NCERT Class 11 Biology SOLUTIONS

Question:

Answer:

More NCERT Questions

Is surgery always needed for appendicitis?

What tests confirm appendicitis?

Can you poop with appendicitis?

What foods trigger appendicitis?

How long can you have appendicitis before it bursts?

Can appendicitis go away on its own?

How do I know if it's gas or appendicitis?

Can you have appendicitis without fever?

Where exactly is appendix pain felt?

What are the first signs of appendicitis?

How can acidity be prevented?

When should I see a doctor for acidity?

Can stress cause acidity?

Are antacids effective for treating acidity?

What foods should be avoided to reduce acidity?

How is acidity diagnosed?

Can acidity cause chest pain?

How is acidity different from acid reflux or GERD?

What are the common symptoms of acidity?

What causes acidity in the stomach?

What happens during a blood transfusion?

What is a normal hemoglobin level?

What diseases are related to blood?

What is the difference between plasma and serum?

How does blood clotting work?

What is the Rh factor and why is it important?

What are the different types of blood groups?

What causes low hemoglobin levels?

What is the function of red blood cells?

What are the main components of blood?

What excretory structures do invertebrates have?

How do aquatic animals excrete ammonia?

What are the main excretory organs in humans?

Why is excretion important for animals?

What is the difference between excretion and egestion?

What are nitrogenous wastes?

Are lungs considered part of the excretory system?

What is the main excretory product in humans?

What are the different modes of excretion in animals?

Fill in the gaps : (a) Ascending limb of Henle’s loop is _______ to water whereas the descending limb is_______ to it.

Name the following: (a) A chordate animal having flame cells as excretory structures

What is the significance of juxta glomerular apparatus (JGA) in kidney function?

Terrestrial animals are generally either ureotelic or uricotelic, not ammonotelic, why?

What is meant by the term osmoregulation?

Match the items of column I with those of column II: (a) Ammonotelism (i) Birds

Explain micturition.

Describe the role of liver, lungs and skin in excretion.

Give a brief account of the counter current mechanism?

Indicate whether the following statements are true or false: (a) Micturition is carried out by a reflex

Explain the autoregulatory mechanism of GFR.

Define Glomerular Filtration Rate (GFR)?

What can affect the absorption of digested foods?

Why is absorption of nutrients important for the body?

How does the liver contribute to nutrient absorption?

What role does the large intestine play in absorption?

What happens to fats after absorption?

How is glucose absorbed during digestion?

What types of nutrients are absorbed in the small intestine?

What structures help in food absorption in the small intestine?

Where does most absorption of digested food occur?

What is absorption in digestion?

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Fill in the gaps : (a) Ascending limb of Henle’s loop is _ to water whereas the descending limb is_ to it.