Tag: zoology

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Multiple choice zoology respiratory system phases in respiration human respiratory system parts of respiration

Cellular respiration is

  1. Continuous

  2. Intermittent

  3. Performed at intervals

  4. Held when energy is required
Reveal answer Fill a bubble to check yourself
A Correct answer
Explanation

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. 

Thus, the correct answer is option A. 

Multiple choice zoology respiratory system phases in respiration human respiratory system parts of respiration

The rate at which oxygen moves from the alveoli of our lungs into our blood

  1. Depends on the difference in oxygen concentration between the alveoli and the blood.

  2. Depends on the color of the alveoli.

  3. Depends on the availability of energy to transport gases across the membrane.

  4. None of the above.
Reveal answer Fill a bubble to check yourself
A Correct answer
Explanation

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.

Multiple choice zoology respiratory system phases in respiration human respiratory system parts of respiration

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

  1. Breathing

  2. Cellular respiration

  3. Pulmonary ventilation

  4. Fermentation
Reveal answer Fill a bubble to check yourself
A,B,C Correct answer
Explanation
 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'.

Multiple choice zoology respiratory system phases in respiration human respiratory system parts of respiration

Air is breathed through

  1. Trachea $\rightarrow$ lungs $\rightarrow$ larynx $\rightarrow$ pharynx $\rightarrow$ alveoli
  2. Nose $\rightarrow$ larynx $\rightarrow$ pharynx $\rightarrow$ bronchus $\rightarrow$ alveoli $\rightarrow$ bronchioles
  3. Nostril $\rightarrow$ pharynx $\rightarrow$ larynx $\rightarrow$ trachea $\rightarrow$ bronchi $\rightarrow$ bronchioles $\rightarrow$ alveoli
  4. Nose $\rightarrow$ mouth $\rightarrow$ lungs
Reveal answer Fill a bubble to check yourself
C Correct answer
Explanation

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.

Multiple choice zoology respiratory system phases in respiration human respiratory system parts of respiration

In fever breathing rate

  1. Increase

  2. Decrease

  3. Stop

  4. None of the above
Reveal answer Fill a bubble to check yourself
A Correct answer
Explanation

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. 

Multiple choice zoology respiratory system phases in respiration human respiratory system parts of respiration

Which energy is consumed in breathing?

  1. Mechanical

  2. Chemical

  3. Bioelectricity

  4. Physical energy
Reveal answer Fill a bubble to check yourself
B Correct answer
Explanation

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.

Therefore, the correct answer is option B.

Multiple choice zoology respiratory system phases in respiration human respiratory system parts of respiration

Breathing by ribs is more pronounced in

  1. Male

  2. Female

  3. Pregnant female

  4. None of the above
Reveal answer Fill a bubble to check yourself
C Correct answer
Explanation

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.