Advertisements
Advertisements
प्रश्न
Explain the difference between the excretory system of humans and plants.
Advertisements
उत्तर
| Excretory system in humans | Excretory system in plants |
| Humans have a well-developed excretory system for the elimination of nitrogenous wastes. | Plants do not have a well-developed excretory system for the elimination of nitrogenous wastes. |
| The human excretory system comprises the kidneys, blood vessels that join them, ureters, urinary bladder, and urethra. | Plants use different strategies for excretion. |
| Excretion is in the form of urine produced to filter out the waste products, like urea and uric acid, from the blood. | Excretion is by means of tannins, gums, essential oils, etc stored in special cells. |
APPEARS IN
संबंधित प्रश्न
Explain the term haemodialysis.
Blood in the renal artery or renal vein (Which one has more urea?)
What gaseous waste products are excreted by plants?
Name the main nitrogenous waste in the human blood. How is it removed from the blood?
The substance which is not reabsorbed into the blood capillaries surrounding the tuble of a nephron is mainly ______.
Put a tick mark (✓) against the most appropriate alternative in the following statement :
In human beings, urea is produced in :
State if the following statement is true or false. Correct the statement if it is false.
Liver produces bile pigments from the hemoglobin of broken RBCs.
Define the following term:
Micturition
Study the diagram given alongside and then answer the question that follow:
Name the region in the kidney where the above structure is present?
Choose the correct answer:
Composition of extracellular fluid is regulated by ___________
Choose the correct answer:
The smallest functional unit of the kidney is ____________
Given below is a diagram of a human kidney, cut open longitudinally. Answer the following:
(i) Give definition of excretion.
(ii) Name the unit of kidney.
(iii) Why does the cortex of kidney show dotted appearance?
(iv) List the functions of the kidney.
Given below is a highly simplified diagram of the human kidney cut open longitudinally. Answer the question that follow:
Why does the cortex of the kidney show a dotted appearance?
Differentiate between:
Renal cortex and Renal medulla.
Complete the following sentence with appropriate word:
The U-shaped portion of a nephron located in the medulla region is called ______.
Hypotonic filtrate is formed in _______.
Answer the following question.
Amphibian tadpole can afford to be ammonotelic. Justify.
“All plants give out oxygen during the day and carbon dioxide during the night”. Do you agree with this statement? Give a reason.
Give two examples of the following:
Water-soluble vitamins
The statement given below is false. Rewrite the correct form of the statement by changing the underlined word.
The pigment urochrome is the breakdown product of the haemoglobin of dead RBCs.
