1. Smoking is harmful because of some consequences. Briefly describe. Oo
1. Smoking is harmful because of some consequences. Briefly describe. Oo
Explanation:
That our lungs, which keep us breathing and keep us living, are extremely delicate organs. Smoking tobacco in the shape of a cigar, beedi, or cigarette gradually harms our lungs and impairs our health. When we smoke, the chemicals in tobacco reach our bodies along with the smoke. The chemicals found in tobacco cause the lungs to suffer numerous health effects, including heart disease, lung cancer, and difficulty inhaling. People who are close to users are also impacted by smoking because they breathe in tobacco-infused air. It's known as silent smoking.
2. Identify one organism that breathes anaerobically. How does this organism support the food and beverage industries?
2. Identify one organism that breathes anaerobically. How does this organism support the food and beverage industries?
Explanation:
Yeast is a single-celled creature, to be precise. Yeast creates ethanol or alcohol as a byproduct of anaerobic respiration, which is also known as fermentation and is used to make wine and beer. Yeast produces carbon dioxide, which is used in the bread-making process. The bread dough rises as a result of the CO2 gas emitted during this process.
3. We feel hungry after exerting ourselves physically or working hard. Tell us why.
3. We feel hungry after exerting ourselves physically or working hard. Tell us why.
Explanation:
We require more energy when we labour hard or engage in physical activity (like running, swimming, or cycling). We breathe more quickly in order to meet the energy demand. Fast respiration helps our cells receive more oxygen. As a result, food breaks down more quickly and more energy is released. We experience increased hunger because food breaks down so quickly.
4. Amphibians are amphibians, like frogs. Do they have any breathing problems given that they can exist on both land and water? When a frog is submerged in water, how do they breathe? Have they got lungs? What function do frogs' lungs serve?
4. Amphibians are amphibians, like frogs. Do they have any breathing problems given that they can exist on both land and water? When a frog is submerged in water, how do they breathe? Have they got lungs? What function do frogs' lungs serve?
Explanation:
The frogs breathe both through their moist skin and their lungs. They therefore don't have any respiratory problems.
The skin of a frog aids in breathing when it enters water.
Via the skin, oxygen-rich air penetrates. An additional set of lungs aids in breathing when the frog is on land.
Via the nose, the lungs take in oxygen-rich air, which is then absorbed by the blood and transported throughout the body. Via the skin, the blood's carbon dioxide diffuses back into the body.
5. Gases can be exchanged with the atmosphere through pores in insects and plant leaves. What are the differences between these pores in terms of where they are found, how many there are, and how deep they reach into the body?
5. Gases can be exchanged with the atmosphere through pores in insects and plant leaves. What are the differences between these pores in terms of where they are found, how many there are, and how deep they reach into the body?
Explanation:
Spiracles are the name for the pores found on the sides of insects, and stomata are the name for the pores found on the surface of leaves. These structures are responsible for the gas exchange with the atmosphere.
These two differ from one another in the following ways.
Spiracles are far less frequent than stomata.
The tracheal systems that spiracles connect to are much more extensive than those seen in leaves.
6 :Choose the outlier from each of the groups below based on the respiratory organs. Why did you choose that response?
(a) A grasshopper, an ant, a snail, and a cockroach
(b) Snake, cow, lizard, and earthworm
(c) Fish, dolphin, whale, and crocodile
(d) Goat, bird, snake, tadpole,
6 :Choose the outlier from each of the groups below based on the respiratory organs. Why did you choose that response?
(a) A grasshopper, an ant, a snail, and a cockroach
(b) Snake, cow, lizard, and earthworm
(c) Fish, dolphin, whale, and crocodile
(d) Goat, bird, snake, tadpole,
Explanation:
As a snail does not breathe through a trachea, the correct answer is (a).
(b) An earthworm, which does not have lungs and instead breathes through its skin.
(c) Fish, as the majority of them breathe through their gills and lack lungs.
Tadpole, as it lacks lungs and breaths through gills.
7. Boojho and Paheli were conversing as they made their way to school on a bitterly cold morning. They saw that the air from their mouths appeared to be smoke. They were perplexed and enquired as to how it occurred. Aid them in locating the solution.
7. Boojho and Paheli were conversing as they made their way to school on a bitterly cold morning. They saw that the air from their mouths appeared to be smoke. They were perplexed and enquired as to how it occurred. Aid them in locating the solution.
Explanation:
On a chilly day, the warm, wet air we exhale condenses into moisture when it comes into touch with the surrounding cold air, giving off the appearance of white smoke.
8. What causes an athlete to breathe more quickly and deeply than usual after a race?
8. What causes an athlete to breathe more quickly and deeply than usual after a race?
Explanation:
Athletes breathe more quickly than usual after the race because they require a lot of energy during the race and a lot of oxygen for the release of that energy.
9. Why do we frequently sneeze after breathing in a lot of dusty air?
9. Why do we frequently sneeze after breathing in a lot of dusty air?
Explanation
As we breathe in dust-filled air, the dust irritates our noses, causing us to sneeze in response.
10. Respiration in fish is different from humans. briefly describe how fish breathe through their gills.
10. Respiration in fish is different from humans. briefly describe how fish breathe through their gills.
Explanation:
The aquatic animals that live in water are known as fish. They have gills, a unique breathing system. The gills allow water-dissolved oxygen to enter. The blood arteries in gills, which are essentially skin protrusions, are used for the exchange of breathing gases. With its mouth, the fish inhales water that is then expelled over its gills to breathe. The gills extract the oxygen that is dissolved in the water, and the blood then absorbs the oxygen.
All of the fish's organs then receive this oxygen for use in respiration. The carbon dioxide created during respiration is carried back by the blood into the gills and released into the surrounding water.
11. Gather three test tubes. Each should be 3/4 full with water. These are A, B, and C, respectively. Keep a snail, a water plant, and the snail and plant in test tubes A, B, and C, respectively. Which test tube would have the highest concentration of carbon dioxide (CO2)?
11. Gather three test tubes. Each should be 3/4 full with water. These are A, B, and C, respectively. Keep a snail, a water plant, and the snail and plant in test tubes A, B, and C, respectively. Which test tube would have the highest concentration of carbon dioxide (CO2)?
Explanation:
Test tube A will have the highest concentration of CO2 since it contains a snail that exhales CO2 into the tube. Because plants are present in test tubes B and C, the CO2 content will decrease as a result of the plants taking up CO2. As a result, there will be less CO2 in these tubes.
All of the fish's organs then receive this oxygen for use in respiration. The carbon dioxide created during respiration is carried back by the blood into the gills and released into the surrounding water.
12. Pay close attention to the statistics provided. and respond to the following inquiries.
(a) The jar with the highest concentration of CO2 must exist. Why?
(b) Which one has the lowest CO2 levels, and why?
12. Pay close attention to the statistics provided. and respond to the following inquiries.
(a) The jar with the highest concentration of CO2 must exist. Why?
(b) Which one has the lowest CO2 levels, and why?
(a) Jar C will have the most CO2 present. That is as a result of the mice kept underneath the jar continuously exhaling CO2, which raises the level of CO2 in the jar.
(b) Jar A will have the least CO2 present. This is so that the plants in jar A can use the CO2 that is released during respiration, or during the process of photosynthesis.
13. We feel hungry after exerting ourselves physically or working hard. Tell us why.
13. We feel hungry after exerting ourselves physically or working hard. Tell us why.
Explanation:
We require more energy when we work hard or engage in physical exercise (such running, swimming, or cycling). We breathe more quickly in order to meet the energy need. Rapid breathing helps our cells receive more oxygen. As a result, food breaks down more quickly and more energy is released. We experience increased hunger because food breaks down so quickly.
14. Describe a single anaerobic organism. How does this organism support the baking and beverage industries?
14. Describe a single anaerobic organism. How does this organism support the baking and beverage industries?
Explanation:
Yeast is a single-celled creature, to be precise. Yeast creates ethanol or alcohol as a consequence of anaerobic respiration, which is also known as fermentation and is used to make wine and beer. Yeast produces carbon dioxide, which is utilised in the bread-making process. The bread dough rises as a result of the CO2 gas created during this process.
15. An amphibian is a frog. Do they have any breathing problems given that they can exist on both land and water? When a frog is submerged in water, how do they breathe? Have they got lungs? What function do frogs' lungs serve?
15. An amphibian is a frog. Do they have any breathing problems given that they can exist on both land and water? When a frog is submerged in water, how do they breathe? Have they got lungs? What function do frogs' lungs serve?
Explanation:
The answer is that frogs breathe both through their moist skin and their lungs. They therefore don't have any respiratory problems.
The skin of a frog aids in breathing when it enters water.
Via the skin, oxygen-rich air penetrates. An additional set of lungs aids in breathing when the frog is on land.
Via the nose, the lungs take in oxygen-rich air, which is then absorbed by the blood and transported throughout the body. Through the skin and lungs, the carbon dioxide from the blood is diffused back.
16. Pores on insects and plant leaves allow them to exchange gases with the atmosphere. Can you list two distinctions between these pores in terms of where they are located, how many there are, and how far into the body they extend?
16. Pores on insects and plant leaves allow them to exchange gases with the atmosphere. Can you list two distinctions between these pores in terms of where they are located, how many there are, and how far into the body they extend?
Explanation:
Spiracles are the name given to the holes found on insects' sides, whereas stomata are the name given to the pores found on the surface of leaves. The exchange of gases with the atmosphere is carried out by these structures.
The following are the differences between these two.
Compared to stomata, spiracles are less common.
Spiracles connect to a vast network of tracheal systems that are not present in leaves.
17. Choose the outlier from each of the respiratory organs-based groups below. Explicitly justify your response.
An ant, grasshopper, snail, or cockroach. A lizard, cow, earthworm, or snake.
(c) Fish, whales, dolphins, and crocodiles
(d) Goat, snake, tadpole, crow
Snail, since it does not breathe through the trachea.
17. Choose the outlier from each of the respiratory organs-based groups below. Explicitly justify your response.
An ant, grasshopper, snail, or cockroach. A lizard, cow, earthworm, or snake.
(c) Fish, whales, dolphins, and crocodiles
(d) Goat, snake, tadpole, crow
Snail, since it does not breathe through the trachea.
Explanation:
(b) An earthworm, which lacks lungs and breathes through its skin.
(c) Fish, as the majority of fish lack lungs and breathe through their gills.
(d) A tadpole, which lacks lungs and breathes by its gills.
18. What airborne gas is necessary for aerobic respiration? What function does this gas serve in respiration?
18. What airborne gas is necessary for aerobic respiration? What function does this gas serve in respiration?
Explanation:
The presence of oxygen in the air is necessary for aerobic respiration.
When breathing, oxygen breaks down food and releases energy.
19. At her school, Paheli took part in a 400-meter race competition and won. She felt cramps in her legs when she got home, so she was torn between happiness and discomfort. Her pain subsided after receiving a massage. In light of the scenario, please respond to the following questions.
(A) What are some potential causes of her leg pain?
(b) Why did she feel at ease following a massage?
19. At her school, Paheli took part in a 400-meter race competition and won. She felt cramps in her legs when she got home, so she was torn between happiness and discomfort. Her pain subsided after receiving a massage. In light of the scenario, please respond to the following questions.
(A) What are some potential causes of her leg pain?
(b) Why did she feel at ease following a massage?
Explanation:
(A) After running, Paheli experienced leg cramps. She had pain in her legs as a result of lactic acid buildup in her leg muscles. After vigorous exercise or running, lactic acid is produced as a result of anaerobic respiration in the muscle cells. Following vigorous activity, we need a lot of energy.
Muscle cells engage in brief anaerobic respiration to generate extra energy to meet the oxygen needs of muscles.
When glucose is partially broken down, lactic acid is produced. It builds up in the muscle cells and results in discomfort and cramping.
(b) A massage or a hot bath can relieve muscle pain or cramps by increasing blood flow, which increases the oxygen delivered to the muscles' cells. It aids in lactic acid's full conversion to carbon dioxide and water.
20. Look at the illustration of the human respiratory system provided. List the organs starting with (A) to (G).
20. Look at the illustration of the human respiratory system provided. List the organs starting with (A) to (G).
Explanation
The human respiratory system have following organs:
A-Ribs
B-Trachea
C-Pharynx
D-Diaphragm
E-Lungs
F-Nasal passage
G-Oral cavity
