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Question
Name a waste gas released by the plants only during the night time.
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Solution
Carbon dioxide is released only during the night because carbon dioxide produced during respiration in completely used up by the plant itself in photosynthesis.
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RELATED QUESTIONS
What are the methods used by plants to get rid of excretory products?
The kidneys in human beings are a part of the system for ______.
_____________ secreted by the (ii) _____________ lobe of the pituitary gland. If this hormone secretion is reduced, there is an increased production of urine. This disorder is called (iii) ____________. Sometimes excess glucose is passed with urine due to hyposecretion of another hormone called (iv) _____________ leading to the cause of a disease called (v) ______________.
The diagram given below shows a section of human kidney. Study the diagram carefully and answer the questions that follow :
(i) Label the parts numbered 1 to 4.
(ii) Why does part ‘2’ have a striped appearance?
(iii) What is the fluid that passes down part ‘4’? Name the main nitrogenous waste present in it.
(iv) Mention the structural and functional units of kidneys.
(v) Name the two major steps in the formation of the fluid mentioned in Q.5 (a) (iii).
The diagram given below is that of a structure present in a human kidney.
Study the same and answer the questions that follow:
1) Name the structure represented in the diagram
2) What is the liquid entering part ‘1’ called?
Name two substances present in this liquid that are reabsorbed in the tubule.
3) What is the fluid that comes to part ‘2’ called?
Name the main nitrogenous waste in it.
4) Mention the three main steps involved in the formation of the fluid mentioned in (iii) above
5) Name the substance which may be present in the fluid in part ‘2’ if a person suffers from Diabetes mellitus.
Draw a neat labelled diagram of the human excretory system.
Fill in the blank.
Malpighian body consists of Bowman’s capsule and .....................
Answer the following in detail.
Describe the process of urine formation.
Name the following:
The tuft of capillaries inside the Bowman's capsule.
One of the following sets of body parts or substances or processed, pick out the one item which overall includes the remaining foir.
Skin, liver, lungs, kidneys, excretion.
Differentiate between the following pairs of terms:
Bowman’s capsule and malpighian capsule.
Choose the correct answer:
Narrow apex of pyramid in kidney is called ___________
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 lowest concentration of urea?
Draw a labeled diagram of the human kidney as seen in a longitudinal section.
Explain the Term: Ureter
Name the Following
The Inner concave margin of kidney.
Give Technical Term:
The duct which transports urine from the kidney to the urinary bladder.
Write the functional activity of the following structure: Renal vein
The tadpole of frog lives in water, hence its mode of excretion is ______.
In a person the tubule part of the nephron is not functioning at all. What will its effect be on urine formation?
