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प्रश्न
What would be the consequences of a deficiency of haemoglobin in our bodies?
उत्तर १
Haemoglobin is the respiratory pigment that transports oxygen to the body cells for cellular respiration. Therefore, a deficiency of haemoglobin in the blood can affect the oxygen supplying capacity of the blood. This can lead to a deficiency of oxygen in the body's cells. It can also lead to a disease called anaemia.
उत्तर २
The deficiency of haemoglobin in our bodies would reduce the oxygen carrying capacity of the blood, resulting in breathing problems, tiredness and a lack of energy. Due to this, we would look pale and lose weight. Our blood contains a red pigment called haemoglobin, which distributes oxygen throughout the body. Anaemia is a condition caused by a lack of haemoglobin, which lowers the amount of oxygen that reaches our body's cells and may cause our body to release less energy. The signs of anaemia include weakness, exhaustion, and dyspnea. Additionally, a lack of haemoglobin will reduce red blood cells' ability to deliver oxygen from the lungs to the body's tissues, which results in hypoxia. As a result, the organism's energy supply and metabolic rate are reduced.
संबंधित प्रश्न
State whether the statement is true or false:
Aquatic animals breathe at a slower rate than the terrestrial animals.
How are oxygen and carbon dioxide transported in human beings?
How are the lungs designed in human beings to maximize the area for exchange of gases?
List the differences between aerobic and anaerobic respiration.
Given below is a square of letters in which are hidden different words related to respiration in organisms. These words may be present in any direction − upwards, downwards, or along the diagonals. Find the words for your respiratory system. Clues about those words are given below the square.
- The air tubes of insects
- Skeletal structures surrounding chest cavity
- Muscular floor of chest cavity
- Tiny pores on the surface of leaf
- Small openings on the sides of the body of an insect
- The respiratory organs of human beings
- The openings through which we inhale
- An anaerobic organism
- An organism with tracheal system
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.
Which of the following is the correct statement regarding bile?
Name an animal which depends on simple diffusion of gases for breathing.
Where in the lungs does gas exchange take place?
Fill in the following blank with suitable word:
The organs of respiration in man are the _____________.
What type of respiration takes place in human muscles during vigorous physical exercise? Give reason for your answer
Define breathing. State the differences between breathing and respiration.
Explain why, when air is taken in and let out during breathing, the lungs always contain a residual volume of air.
Explain why, it is dangerous to inhale air containing carbon monoxide.
Explain how, it would benefit deep sea divers if humans also had gills.
What are the major organs of respiratory system in man (or humans)?
Why do the walls of trachea not collapse when there is less air in it?
How are oxygen and carbon dioxide exchanged in our body during respiration?
When air is blown from mouth into a test-tube containing lime water, the lime water turns milky due to the presence of:
Which of the following statements are correct?
(i) pyruvate can be converted into ethanol and carbon dioxide by yeast
(ii) fermentation takes place in the case of aerobic bacteria
(iii) fermentation takes place in mitochondria
(iv) fermentation is a form of anaerobic respiration
The breathing and respiration in woody stem of a plant takes place through:
There are five animals P, Q, R, S and T. The animal P always lives in water and has gills for breathing. The animal Q can stay in water as well as on land and can breathe both, through moist skin and lungs. The animal R lives in soil and breathes only through its skin. The animal S lives on land and breathes through spiracles and tracheae. And animal T lives in water and breathes through its cell membrane.
(a) Which of the animals could be Amoeba?
(b) Which of the animals could be frog?
(c) Which animal could be fish?
(d) Which animal could be grasshopper?
(e) Which animal could be earthworm?
Consider the following chemical reactions which take place in different organisms/tissues under various conditions:
(i) Glucose → Respiration ">Ethanol + Carbon dioxide + Energy
(ii) Glucose→ Respiration ">Carbon dioxide + Water + Energy
(iii) Glucose → Respiration "> Lactic acid + Energy
(a) Name one organism which respires according to equation (i) above.
(b) Name one organism which respires according to equation (ii) above.
(c) When and where does respiration represented by equation (iii) above take place?
(d) Which equation/equations represent aerobic respiration?
(e) Which equation/equations represent anaerobic respiration?
(f) Which of the above reactions produces the maximum amount of energy?
When a person breathes in the air, the air enters into his body through an organ A having two holes B in it. The air then passes through the pharynx and larynx and enters into tube C. The tube C divides into two smaller tubes D at its lower end. The two smaller tubes are attached to two respiratory organs E. Each smaller tube divides inside the organs E to form a large number of still smaller tubes called F. The smallest tubes F have air-sacs G at their ends in which gaseous exchange takes place in the body of the person. What are A, B, C, D, E, F, and G?
What is the name of tissues which transport:
water and minerals in a plant?
Fill in the following blanks with suitable words:
The ___________ blood cells make antibodies whereas ___________ blood cells help in respiration.
Out of xylem and phloem, which one carries materials only upwards?
Answer the following in one word.
What is the muscular sheet below the lungs called?
Differentiate between
External respiration and Internal respiration
Choose the odd one out in the following groups of four items each:
Trachea, Bronchus, Alveolus, Diaphragm
Choose the odd one out in the following groups of four items each:
Ethyl alcohol, Carbon dioxide, Starch, Oxygen
Name the body structure concerned with the given functional activity:
Prevents food from entering the trachea during swallowing.
Name the body structure concerned with the given functional activity:
Protects the lungs from mechanical injury
Which chemical compound inside a cell can be termed "Currency of Energy"?
Given below is an example of a certain structure and its special functional activity:
"Kidney and excretion".
Fill in the blanks on a similar pattern.
Pleura and _____________.
State one function of the following:
Pleural fluid
How is the respiratory passage kept free of dust particles?
Given below is an overall chemical reaction of a certain process:
C6H12O6→LacticAcid+2ATP+Heat energy
Is this reaction applicable to animals or to plants or to both animals and plants?
Answer the following question.
In the experimental set up to show that "CO2 is given out during respiration", name the substance taken in the small test tube kept in the conical flask. State its function and the consequence of its use.
Answer the following question.
A gas is released during photosynthesis. Name the gas and also state the way by which the gas is evolved.
Answer the following question.
How is O2 and CO2 transported in human beings?
Air that enters through the nose passes into this tube.
Identify the CORRECT sequence of events for the transport of respiratory gases.
Glycolysis process occurs in which part of the cell?
Which is the correct sequence of air passage during inhalation?
Which of the following equations is the summary of photosynthesis?
Yeast is used in wine and beer industries because it respires
Breathing is a process that
- provides O2 to the body.
- breaks down food to release energy.
- helps the body to get rid of CO2.
- produces water in the cells.
Which of the following gives the correct combination of functions of breathing?
Mark the following statement as True or False. Correct the false statement.
Insects have spiracles on the lower surface of the body.
With the reference to four gases CO2, CO, Cl2 and O2, which one of the options in the table is correct?
The oxygen dissociation curve is a sigmoid curve and it shifts towards the right due to ______.
Match the correct answers with the type of respiration and respiratory substances.
| Respiration | Types of Substrates |
| A. Floating respiration | I. Proteins |
| B. Cytoplasmic respiration | II. Glucose |
| C. Protoplasmic respiration | III. Carbohydrates and fats |
