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प्रश्न
If a plant is releasing carbon dioxide and taking in oxygen during the day, does it mean that there is no photosynthesis occurring? Justify your answer.
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उत्तर
If a plant is releasing carbon dioxide and taking in oxygen during the day means the plant is respiring; it does not mean that there is no photosynthesis occurring in the plant. This is because Photosynthesis and respiration are two independent processes.
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संबंधित प्रश्न
Describe the structure and functioning of nephrons.
The kidneys in human beings are a part of the system for ______.
Write the functions of the Urinary bladder
A dialysis machine contains long tubes coiled in a tank containing dialysing solution
Name the main waste which passes into the dialysing solution.
Draw a neat labelled diagram of the human excretory system.
What is urethra?
The substance which is not reabsorbed into the blood capillaries surrounding the tuble of a nephron is mainly:
(a) glucose
(b) amino acid
(c) urea
(d) water
The following diagram represents a mammalian kidney tubule (nephron) and its blood supply.
Parts indicated by the guidelines 1 to 8 are as follows:
1. Afferent arteriole from renal artery
2. efferent arteriole
3. Bowman’s capsule
4. Glomerulus;
5. Proximal convoluted tubule with blood capillaries;
6. Distal convoluted tubule with blood capillaries;
7. collecting tubule;
8. U-shaped loop of Henle
Study the diagram and answer the question that follow:
Where does ultrafiltration take place?
Correct and rewrite the statements by changing the biological term that is underlined for the statement:
The kidney is composed of number of neurons.
Explain in your own words with suitable examples.
How is excretion in plants useful to human beings?
The following diagram represents a mammalian kidney tubule (nephron) and its blood supply.
Parts indicated by the guidelines 1to 8 are as follows:
1. Afferent arteriole from renal artery
2. Efferent arteriole
3. Bowman's capsule
4. Glomerulus
5. Proximal convoluted tubule with blood capillaries
6. Distal convoluted tubule with blood capillaries
7. Collecting tubule
8. U-shaped loop of Henle
Study the diagram and answer the question that follow:
Which structure contains the highest concentration of urea?
Explain the functioning of kidney.
Complete the following sentence with appropriate word:
Besides excretion, the kidneys also carry out the important function of ______.
Write the functional activity of the following structure: Vasopressin
Choose the correct option.
Specific gravity of urine would _______ if level of ADH increases.
Hypotonic filtrate is formed in _______.
Answer the following question.
State the role of liver in urea production.
The tadpole of frog lives in water, hence its mode of excretion is ______.
Which of the following is not an example of secretion?
