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प्रश्न
Two green plants are kept separately in oxygen-free containers, one in the dark and the other in continuous light. Which one will live longer? Give reasons.
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उत्तर
As plants emit CO2 during breathing, plants kept under constant light survive longer. In the case of plants maintained in the dark, CO2 causes a shortage of oxygen, causing the plant to die sooner.
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संबंधित प्रश्न
Explain the term haemodialysis.
Draw the well-labelled diagram of the human excretory system
Define excretion. Name the excretory unit of a kidney.
What does the bladder in our body do?
The procedure of cleaning the blood of a person by using a kidney machine is known as:
(a) ketolysis
(b) hydrolysis
(c) dialysis
(d) photolysis
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.
Fill in the blanks in the following passage to make it a meaningful description.
In a nephron, the ______ flows through the ______ under great pressure. The reason for this great pressure is that the ______ (outgoing) ______ is narrower than the ______ (incoming). This high pressure causes the ______ part of the blood to filter out from the ______ into the ______ capsule.
Choose the correct answer:
Composition of extracellular fluid is regulated by ___________
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.
Choose the odd one out in the following series:
Proximal convoluted duct, loop of Henle, vein.
Choose the odd one out in the following serie:
Column of Bertini, minora calyces, brain.
Name the Following
The blood vessels which brings pure blood to the kidneys:
Name the Following
The substance found in excess in the urine of a diabetic patient.
Complete the following sentence with appropriate word:
The sum total of all the chemical reactions taking place in the cell is known as ______.
Write the functional activity of the following structure: Henle’s loop
Answer the following question.
Amphibian tadpole can afford to be ammonotelic. Justify.
When uric acid is produced in excess, it gets deposited in joints, resulting in ____________.
What would happen if green plants disappeared from earth?
Give two examples of the following:
Nitrogenous waste
Give two examples of the following:
Bile pigments
