Tag: zoology
Questions Related to zoology
Cellular respiration is
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Continuous
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Intermittent
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Performed at intervals
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Held when energy is required
Cellular respiration is a continuous process of oxidation of food to produce energy. The energy produced is utilized by human beings to carry out all the life processes such as digestion, excretion, circulation etc. Since these are continuous processes and do not stop, so they require continuous energy. If the energy is produced intermittently it will slow down these processes and affect the individual.
The rate at which oxygen moves from the alveoli of our lungs into our blood
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Depends on the difference in oxygen concentration between the alveoli and the blood.
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Depends on the color of the alveoli.
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Depends on the availability of energy to transport gases across the membrane.
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None of the above.
The rate at which oxygen moves from the alveoli of our lungs into our blood depends on the difference in oxygen concentration between the alveoli and the blood. More is the oxygen absorbed by our lungs, more is it utilized by body muscles.
During respiration, exchange of gases takes place in
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Trachea and Larynx
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Alveoli of lungs
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Alveoli and throat
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Throat and Larynx
Alveoli are tiny sacs from the bronchiolar extensions within our lungs that allow oxygen and carbon dioxide to move between the lungs and bloodstream.
Utilization of $O _2$ by the cells to derive energy from nutrients for performing various activities and resultant release of $CO _2$ as by-produced is called
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Breathing
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Cellular respiration
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Pulmonary ventilation
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Fermentation
| Name of the process | By-product |
|---|---|
| Breathing | CO2 |
| Cellular respiration | CO2 + H2O+ 38 ATP |
| Pulmonary ventilation | Commonly known as breathing, so as breathing the by-product is CO2 |
| Fermentation(takes place in anaerobic condition) | Ethanol + CO2 (alcohol fermentation)Lactate (lactic acid fermentation). |
So, the correct answer is 'Breathing', 'Cellular respiration' and 'Pulmonary ventilation'.
Descending aorta and pulmonary trunks are
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Muscular arteries
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Medium arteries
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Elastic arteries
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Arterioles major
Descending aorta and pulmonary trunks are elastic arteries and are quite distensible.
The respiratory centers, which control inspiration and expiration, are located in?
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Diencephalon
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Medulla oblongata
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Cerebellum
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Spinal cord
Air is breathed through
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Trachea $\rightarrow$ lungs $\rightarrow$ larynx $\rightarrow$ pharynx $\rightarrow$ alveoli
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Nose $\rightarrow$ larynx $\rightarrow$ pharynx $\rightarrow$ bronchus $\rightarrow$ alveoli $\rightarrow$ bronchioles
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Nostril $\rightarrow$ pharynx $\rightarrow$ larynx $\rightarrow$ trachea $\rightarrow$ bronchi $\rightarrow$ bronchioles $\rightarrow$ alveoli
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Nose $\rightarrow$ mouth $\rightarrow$ lungs
In humans respiratory system consists of respiratory tract (conducting zone) and lungs (exchange zone). The respiratory tract is the passage from external nostrils to lungs or a passage by which air enters into lungs. The respiratory passage starting from external nostrils is nasal chamber --> internal nares --> nasopharynx -->pharynx --> glottis --> larynx --> trachea --> bronchial tree (bronchi and bronchioles) --> alveoli.
In fever breathing rate
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Increase
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Decrease
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Stop
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None of the above
Normal body temperature is around $37^0$C. Fever happens when the body's temperature is higher than normal because of an infection. Fever causes an increase in the heart rate, breathing rate and blood circulation to the skin. This is how the body tries to reduce the heat caused by fever.
Which energy is consumed in breathing?
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Mechanical
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Chemical
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Bioelectricity
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Physical energy
In breathing or cellular respiration, a set of metabolic reactions and processes take place in the cells of organisms to convert biochemical energy from nutrients into adenosine triphosphate (ATP), and then release waste products. The reactions involved in respiration are catabolic reactions, which break large molecules into smaller ones, releasing energy. Respiration is one of the key ways a cell gains useful energy to fuel cellular activity. Cellular respiration is considered an exothermic redox reaction which releases heat. The overall reaction occurs in a series of biochemical steps, most of which are redox reactions themselves.
Breathing by ribs is more pronounced in
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Male
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Female
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Pregnant female
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None of the above
During the third trimester, as the uterus continues to grow, it puts pressure on the internal organs and the diaphragm, which in turns restricts the amount of room available for lungs and leads to shortness of breath. So breathing by ribs is more pronounced during pregnancy, as it slightly raises the rib cage and temporarily gives more breathing space to lungs making breathing little easier.