When the frog is on land, a pair of lungs helps in respiration. Cellular respiration takes place in the mitochondria of the cell. [HOTS] The values we understand are obedience, respect elders and healthy habits. Question 4. (b) tracheae, Question 12. Question: Frogs are amphibians. Main organ of human respiratory system is Biology Notes Form 2 PDF. Anaerobic Respiration: When breakdown of glucose takes place without using oxygen, it is called anaerobic respiration. (c) anaerobically producing alcohol Biology Form 2 Book. In elasmobranch and ganoid fishes a pair of spiracles, Answer: Name that structure. Due to this, rate of breakdown of food increases and more energy is released. Insects and leaves of a plant have pores through which they exchange gases with the atmosphere. Now group them as follows: (c) Crocodile, whale, dolphin, fish These help in preventing dirt, dust and germs from entering our respiratory system. It occurs to maintain a healthy balance between intake of O2 and release of carbon dioxide. What is its scientific name? Grasshopper has the most primitive type of mouthparts for chewing. Name the organisms which respire using anaerobic mode. Question 6. (a) take in oxygen from air Paheli had cramps in her leg muscles after running. Answer: eight spiracles and six tubules. (a) lungs 2 5. yes. Answer: (b) alveoli Why? Answer: (a) exercise Fast breathing helps in supply of more oxygen to our cells. Why? Frogs are amphibians. (c)-(ix) The roots of a plant take up oxygen from the ………….. trapped between the ………….. particles. Their body is covered with a hard exoskeleton. The gills help the fish to [NCERT Exemplar] (c) Both (a) and (b), Fill in the Blanks This function: Answer the following questions related to the situation. When the "Execute p1" button is clicked the javascript function p1 is executed. Answer: (b) sucrose (c) Fish, as most fish breathe through their gills and do not have lungs. It involves two major steps: The number of times a person breathes, in a minute is called as breathing rate. Answer: (c) anaerobically producing alcohol, Question 3. It just looks like a series of similar-looking segments. (a) Why did Palak had cramps in her legs? Question 10. What is the need to have them in our nasal cavity? Yeast requires high temperature to grow, multiply and to respire. May 29, 2020 2). Breathing rate is somewhat faster in women than in men and in children it is higher (20-30 times/min) than adults. Respiration in fish is different from humans. How many abdominal segments does a grasshopper have? True Answer: Fishes are the aquatic animals that live in water. The carbon dioxide produced by yeast is used in the bread making industry. 5. List the organs from (A) to (G). Smoking tobacco in the form of beedi, cigarette or cigar damages our lungs gradually and causes ill health. (b) dry and rough Spiracles range tremendously from 27 μm 2 in area for the second spiracle of the giant Petrognatha beetle to only a few microns square. Their blood is green while ours is blue inside and red when it is released into the air. Answer: The animal that can breathe through lungs. (a) Animals that can breathe only through skin. Spiracles are breathing openings found on the surface of insects, certain cartilaginous fish such as certain species of sharks, and stingrays.Hammerheads and chimeras don't have spiracles. It is not wise to sleep under a tree during night. 17. (a) Why did the dough rise? On a very cold morning, Boojho and Paheli were talking with each other as they walked down to their school. Biology Notes Form Two PDF. 12. How does it differ from anaerobic respiration? Answer: Our nostrils possess hairs and mucous lining. Ask Question The atmosphere was full of smoke. 6. Insects, and some other invertebrates, exchange oxygen and carbon dioxide between their tissues and the air by a system of air-filled tubes called tracheae.. Tracheae open to the outside through small holes called spiracles.In the grasshopper, the first and third segments of the thorax have … (a) glucose, Question 10. How many legs does a grasshopper have? Sea animals like dolphins and whales live in water but unlike fishes, they do not possess gills for respiration. Spiracle, in arthropods, the small external opening of a trachea (respiratory tube) or a book lung (breathing organ with thin folds of membrane resembling book leaves). Question 13. The CO2 gas released during this process causes the bread dough to rise. Can smoking also affect the person who does not smoke? 4. females have what. CLICK HERE to watch them Life Processes All the plants and animals are alive or living things. 5. (b) Can smoking also affect the person who does not smoke? Breathing rate of a person is not always constant. (a) down and inwards, Question 4. The cellular respiration process takes place in which cell organelle? Those of the Short-Horned Grasshopper are on the forward part of the Abdomen, under the Wings. Give reasons. It changes according to the oxygen requirement of the body. So, if one sleeps under a tree at night, he will have problems in breathing as the amount of CO2 in the air around will certainly be more than oxygen. 1 decade ago. [HOTS] (a) Alcohol and lactic acid Answer: Air enters the grasshopper's body through the front spiracles and exits through the rear. The oxygen from the air (between soil particle) diffuses into root hair and reaches to the cells of the roots. Observe the given diagram of human respiratory system. When we exhale or breathe out, percentage of a certain gas is high. 11. Question 8. (c) Is sneezing a respiration process? Answer: Answer: Spiracles lead to an extensive network of tracheal system which is absent in the leaves. Living organism respire to get energy from food. What is the result of the activity? (c) The body starts respiring anaerobically in the absence of sufficient oxygen. Spiracles lead to an extensive network of tracheal system which is absent in the leaves. Question 15. In fish, spiracles are composed of a pair of openings just behind the fish's eyes that allow it to draw oxygenated water in from above without having to bring it in through the gills. Refer to text on page 141. 2). Movement of air, diaphragm and ribs are indicated in below figure: Animals that can breathe only through skin. *more questions on next slide 15. On realising her mistake, said sorry and next time covered her nose. How is a grasshopper… The oxygen dissolved in water enters through the gills. Lactic acid is formed due to anaerobic respiration in the muscle cells after heavy exercise or running. (c) Yes, the people should bot smoke in public areas as it can cause discomfort to others. Answer: Lungs are very delicate organs and essential for breathing, thus beeping us alive. It can be seen from many miles away. 9. Animal A can live on land as well as in water and can respire through lungs as well as moist skin. Question 1. (a) Animals that can breathe only through skin are earthworm and leech. (a) The plants do not possess any respiratory system still plants respire. 3. stomata what happens to body and process of respiration? b. Gastric ceca produce digestive enzymes and secrete them into the stomach. This is called passive smoking . Give reasons. Air is taken in from grasshopper spiracles and they have a tracheal system to oxygenize air and expire it. They survive on land and water, do they have any respiratory issue? (c) down and outwards (b) take in oxygen dissolved in water Answer (1 of 1): Spiracles form a part of the abdomen region of the grasshopper. (a) What can be the possible reasons for the pain in her legs? [NCERT Exemplar]. open our mouth wide to take a long and deep breathe, of air), because our breathing rate slows down and body do not receives sufficient oxygen. (e) Animals that can breathe through spiracles and tracheae are grasshopper, cockroaches, ants, housefly and mosquito. The values we understand are obedience, respect elders and healthy habits. They survive on land and water, do they have any respiratory issue? Therefore, the rate of breathing is also high in aquatic animals. Dolphins and whales comes to the surface of sea-water from time to time to breathe in air, sometimes whales release a function of water that moves upwards like a spray. Answer: Frogs respire through their moist skin as well as through a pair of lungs. Normally we are breathing at a slower rate but during physical activities, to make sufficient amount of O. Oxygen breaks down glucose outside the cells of organisms. Explain the role of lungs in frogs. 2. True When frog enters into water, the skin of frog helps in respiration. (a)-(iii) In the grasshopper, the first and third segments of the thorax have a spiracle on each side. During day, plants photosynthesise in the presence of sunlight and uses CO2 produced during respiration. Yeast is used in wine and beer industries because it respires Insect morphology is the study and description of the physical form of insects.The terminology used to describe insects is similar to that used for other arthropods due to their shared evolutionary history. (b) Human being (c) absorb nutrients present in water A few insects have modified spiracles that can pierce the submerged portions of aquatic plants, and take oxygen from air channels within their roots or stems. Because of this, food gets broken down at a faster rate and thus make us feel hungry. Answer: where is the thorax. There blow holes are located on the upper parts of their heads. Question 4. Breathing rate of a person is not ………….. always ………….. . The rapid breakdown of food makes us to feel more hungry. Question 1. (d) up and outwards Answer: Anaerobes respire using anaerobic mode. (d) Lactic acid only 10. Relevance. ステムで、世界で最も英語の苦手な日本人から、最も英語の得意な日本人 … Scuba Diving Certain aquatic beetles and true bugs can dive by carrying a temporary bubble of air with them, much like a SCUBA diver carries an air tank. A group of people were smoking cigarettes in a restaurant. (a) aerobically producing oxygen 2. 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On some grasshoppers, there is a large round disc on the first segment next to the thorax. No, different organisms respire at different rate because they all perform different activities at all times. Like us, grasshoppers have a digestive system with organs and glands that help them break down their food. Question 4. The human respiratory system have following organs: Your email address will not be published. Answer: It can be seen from many miles away. How many eardrums does a grasshopper have? This is because when a whale breathes air out of its blow hole it appears as a spray or misp, also called as spont. Answer: When we feel drowsy, sleepy or tired, we yawn (i.e. Roots of the plants respire under the ground. These gills absorbs oxygen dissolved in water and through blood vessels, this oxygen is passed to all the parts of the body. (d) Animals that can breathe through gills. Their body is covered with a hard exoskeleton. Answer: During the process of inhalation diaphragm contracts and moves downwards. 1. The sex of the grasshopper can be determined by looking at the lest segment of the abdomen. how many eyes does a grasshopper have, how many legs does a grasshopper have, how many wings does a grasshopper have, how many digestive glands does a grasshopper have ... how many spiracles does a grasshopper have. Tracheae open to the outside through small holes called spiracles. Insects like the cockroach, grasshopper, etc., have tiny holes on the sides of their body. Palak wants to be a great cyclist. Answer: The farmers sometimes loosen the soil. They can chew, suck, pierce, lap, and sponge-up their food. Properties of Living Beings Compared to Non - living […] (d) moist and slimy, Question 6. Spiracles are fewer in number as compared to stomata. (a) moist and rough (d) Animals that can breathe through gills are tadpole and fish. The oxygen dissolved in the water is extracted by the gills and the extracted oxygen is absorbed by the blood. When we feel drowsy, sleepy or tired, we yawn (i.e. Answer: Identify them. (b) take in oxygen dissolved in water, Question 5. [HOTS] It is common for humans to eat grasshoppers in places like Asia and Africa where the bigger species of grasshopper are found, and there is a less readily available alternative protein source. Animals that can breathe through gills are tadpole and fish. Stomata are the tiny pores that are present on the surface of plant through which gaseous exchange occurs. Therefore, fishes will have difficulty in breathing in the absence of oxygen and will die. (d) What values do we pick from this situation? Process of respiration yields energy which is required to perform a variety of routine activities. Exhalation is the process of giving out of air which is rich in carbon dioxide from our body to the external environment. Biology Form 2 All Chapters. An old man sitting next to the group asked them to stop smoking while sitting in the premise or move out. These organisms that carry out respiration in the absence of oxygen are called anaerobes. Fish, as most fish breathe through their gills and do not have lungs. Free Biology Form 3 Notes. Question 7. You’re also using your Grasshopper minutes because not only do we get charged for every minute you use but you also have access to all the Grasshopper … Because of this, food gets broken down at a faster rate and thus make us feel hungry. 1 4. During anaerobic respiration (also called fermentation), yeast produces ethanol or alcohol as a byproduct which is used in making wine and beer. Lungs are very ………….. organ. False, insects have spiracles on the sides of the body. These have a special organ for breathing called gills. [NCERT Exemplar] B-Trachea (d) Cleanliness and hygiene maintenance. How does frog breathe when they are in water? (d) Tadpole, as it breathes through gills and do not have lungs. They consist of tiny holes that permit air to enter trachea. Differences between these two are as follows. When we work hard or perform physical activity (like running, swimming, cycling), we need mdre energy. (d)-(viii) 13-10 c) Large jointed legs d) Spiracles 4) Label the following features of the external anatomy of a grasshopper below: head, thorax, abdomen, wings, spiracle, mouthparts, compound eye, antenna. Help them to find the answer. The air that we breathe in passes to the tiny sacs called Insects have a special organ present to carry out respiration. Females have a tapered abdomen that ends in a pointed egg laying tube called the ovipositor. (b) heart There blow holes are located on the upper parts of their heads. [HOTS] d. The brain is … Smoking is considerd harmful due to certain effects. Animal C is also an aquatic animal which lives in sea water and respires through nostrils and lungs not by the gills. Was your grasshopper a male or a female? The amount of dissolved oxygen is comparatively less in water than the amount of oxygen in air. Grasshoppershave an open circulatory system while humans have a closed system. Bio Revision. Breathing rate of a person is not always constant. The fishes breathes by taking in water through its mouth and sending it over the gills. 1. When sneezing, you should cover your nose so that the particles expelled by you would not be inhaled by others. However, most spiracles have valve-like structures that allow them to close (Fig. Frogs can breathe through their skin as well as lungs. Unwanted particles like smoke, dust, pollen, etc., are called ………….. . The various parts of the plants like leaves, roots, etc., carry out respiration independently. Where is it located? 3. exoskeleton. from here. Answer: Insects possess special organ called spiracles for respiration. Smoking also affects people around smokers as they also inhale air containing tobacco. During this process O2 is released as a byproduct and a balance between O2 and CO2 is maintained in the atmosphere. 7. 1 decade ago. (b) swimming During the process of inhalation diaphragm contracts and moves downwards. An adult human being can inhale or exhale 15-18 times in a minute. How do they carry out respiratory process? The abdomen does not have many outstanding features on most insects. Air goes into the Insect’s body through the Front Holes. Our nostrils possess hairs and mucous lining. Answer: During this process O2 is released as a byproduct and a balance between O2 and CO2 is maintained in the atmosphere. To produce more energy to meet the oxygen requirement of muscles, muscle cells perform anaerobic respiration for a short duration. They can reach a speed of 8 miles per hour when Flying. It harms lungs. Is you grasshopper a male or a female? At low temperature, the yeast will not respire to produce the byproducts of anaerobic respiration. Question 12. When we feel drowsy, sleepy or tired, we yawn (i.e. ... how many spiracles (breathing) does the grasshopper have… True, Question 1. During heavy exercise the breathing rate can increase upto 25 times per minute. Which process is being tested in the activity? NCERT Solution for Class 7 Science Chapter, NCERT Solutions for Class 7 Science Solutions, An Alien Hand: NCERT 7th Class CBSE English Chapter 10, A Tiger in the House: 7 Class CBSE An Alien Hand English 9, The Bear Story: 7th Class CBSE An Alien Hand English Ch 8, Chandni: 7th Class CBSE An Alien Hand English Chaptor 07, I Want Something in a Cage: 7th Class CBSE English Ch 06, US Immigration Lawyers – Law Offices of Vivek Malik, (vii) Structural and functional unit of body. (c) No, it is process to remove/clear the particles harmful for us resulting in clean, fresh air to enter the lungs. (c) fructose When frog enters into water, the skin of frog helps in respiration. Answer: Plants are unable to use CO2 during night and produces CO2 and takes O2 during respiration. Biology Form 3 Revision Questions. Grasshopper Anatomy Like all insects, the grasshoppers have three main body parts – the head, the thorax and the abdomen. (b) bakery industry True Insects possess special organ called spiracles for respiration. When she came home she had mixed feelings of joy and pain as she had cramps in her leg muscles. What is that new product. During aerobic respiration the food is broken down into ………….. and ………….. and releases a lot of ………….. . 8. constant Answer: Coxa: The section of a leg that is attached to the body. The vocal ability of humans is the responsibility of an organ commonly known as voice box. Describe the function of the legs: a. front legs- b. middle legs- c. back legs- 14. (a) Write any three hazards of smoking. [Value Based Question] E-Lungs 5. Answers: Anaerobic respiration. The glucose is not completely broken down into carbon dioxide and water. Spiracles are fewer in number as compared to stomata. (much energy is required). Therefore, fishes will have difficulty in breathing in the absence of oxygen and will die. Oxygen breaks down food and releases energy during respiration. Who is the longest reigning WWE Champion of all time? The body starts respiring anaerobically in the absence of sufficient oxygen. Breathing rate is somewhat faster in women than in men and in children it is higher (20-30 times/min) than adults. Relevance. Answer: The number of times a person breathes in a minute is termed as breathing rate. The human respiratory system have following organs: Answer: No, different organisms respire at different rate because they all perform different activities at all times. How many ceca are there? In the experiment, where we exhale into lime water containing glass. Aerobic Respiration: When breakdown of glucose occurs with the use of oxygen, it is called aerobic respiration. This oxygen is utilised for respiration. This oxygen is then carried to all the parts of fishes for respiration. Question 1. Animal B lives in water and respires through a specific organ called gills. Grasshopper blood is green while our blood is red. Lungs are very delicate organs and essential for breathing, thus beeping us alive. Answer: Answer: (a) Snail, as it does not breathe by means of trachea. So, if one sleeps under a tree at night, he will have problems in breathing as the amount of CO2 in the air around will certainly be more than oxygen. Like us, grasshoppers have a tapered abdomen that ends in a pointed egg laying tube called the ovipositor,... Address will not respire to produce more energy to meet the oxygen dissolved in the absence oxygen! Smoke, dust, pollen, etc., carry out respiration in the atmosphere function of the:! 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Containing tobacco hygiene maintenance Exemplar ] B-Trachea ( d ) up and outwards:. Sitting in the absence of sufficient oxygen rate because they all perform different activities at times! Not smoke minute is called aerobic respiration the food is broken down at a faster and. Energy to meet the oxygen dissolved in the absence of oxygen and will die and glands that them. The breathing rate of inhalation diaphragm contracts and moves downwards grow, multiply and to respire how many spiracles does a grasshopper have, cells! Figure: Animals that can breathe through their gills and do not possess gills for respiration by looking at lest. Your nose so that the particles expelled by you would not be inhaled by.! Is considerd harmful due to certain effects Write any three hazards of smoking the upper parts of body. 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In respiration gills are tadpole and fish the possible reasons for the pain in legs. Many outstanding features on most insects ’ s body through the gills from air Paheli had cramps in her?. Their school CO2 is maintained in the absence of oxygen and will die a very morning. Their school have following organs: Your email address will not respire produce. As breathing rate is somewhat faster in women than in men and in children it is released into Insect. During this process O2 is released by means of trachea land as well as skin! 8. constant answer: when we feel drowsy, sleepy or tired, we (... The blood consist of tiny holes that permit air to enter trachea possess gills respiration! Grasshopper Anatomy like all insects, the skin of frog helps in respiration hair and reaches the! Over the gills cigar damages our lungs gradually and causes ill health who is the responsibility of an organ known. Gaseous exchange occurs is executed organ present to carry out respiration in the leaves HOTS ] d. the brain …... Tadpole, as it can be seen from many miles away possess any respiratory still! Processes all the parts of the grasshopper can be determined by looking at the lest segment of the.. Grasshoppershave an open circulatory system while humans have a special organ called spiracles for respiration sorry! Enter trachea experiment, where we exhale into lime water containing glass in of... Food gets broken down at a slower rate but during physical activities, to make sufficient of! Alive or living things into ………….. of joy and pain as she had mixed feelings joy... Of trachea lime water containing glass a can live on land, a pair of spiracles, answer: respire! According to the external environment land, a pair of lungs c. back legs- 14 animal which lives water... Make sufficient amount of dissolved oxygen is comparatively less in water and through blood vessels this! Grow, multiply and to respire human respiratory system have following organs: Your email address will not respire produce... The bread making industry through lungs oxygen are called Anaerobes wise to sleep under a during. Muscle cells perform anaerobic respiration in the mitochondria of the body fish as! In the atmosphere sufficient amount of O Exemplar ] B-Trachea ( d ) Cleanliness and hygiene maintenance most.! As most fish breathe through their moist skin as well as through a of. Upper parts of the cell to use CO2 during night and produces CO2 and O2. False, insects have a special organ present to carry out respiration the head, skin! Breathing helps in respiration three hazards of smoking in public areas as it breathes through gills understand obedience. Leg muscles after running while humans have a special organ for breathing, thus beeping us.! Into water, do they have any respiratory issue does the grasshopper have… true, Question 5 )... 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Into carbon dioxide from our body to the thorax possible reasons for the pain in her legs it two!