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What is the structural and functional unit of lungs
General Science Biology Zoology Class 11th NEET UG NEET UG Preparation
Q. 8 of Quiz-1391 (Que-ID : 2651)
What is the structural and functional unit of lungs
- Bronchioles
- Alveoli
- Bronchi
- Both a and c
Ans → (b)Alveoli
Explanation →
This question is taken from this post → Respiration Class 11th Biology | Practice MCQs with Answers for NEET - attemp/practice
More MCQs in - Respiration Class 11th Biology | Practice MCQs with Answers for NEET
Q. 1 of Quiz-1391 (Que-ID : 2644)
Which among the following does not exchange o2 with CO2 through simple diffusion
- Earthworms
- Earthworms
- Sponges
- Flatworms
Q. 2 of Quiz-1391 (Que-ID : 2645)
Which among the following have well developed respiratory system
- Cockroaches
- Earthworms
- Sponges
- Mammals
Q. 4 of Quiz-1391 (Que-ID : 2647)
Name a sound box which is responsible for sound production
- Pharynx
- Larynx
- Epiglottis
- None of the above
Q. 5 of Quiz-1391 (Que-ID : 2648)
Thoracic chamber is dorsally formed by
- Vertebral column
- Sternum
- Ribs
- Diaphragm
Q. 6 of Quiz-1391 (Que-ID : 2649)
Inspiration occurs if the pressure within the lungs is
- More than atm pressure
- Less tha atm pressure
- Equal to atm pressure
- None of the above
Q. 7 of Quiz-1391 (Que-ID : 2650)
The part starting from external nostril upto terminal bronchioles is known as
- Conducting part
- Exchange part
- Respiratory part
- None of the above
Q. 8 of Quiz-1391 (Que-ID : 2651)
What is the structural and functional unit of lungs
- Bronchioles
- Alveoli
- Bronchi
- Both a and c
Q. 9 of Quiz-1391 (Que-ID : 2652)
On an average healthy human breathes how many times per minute
- 12-16
- 15-16
- 20-25
- 72
Q. 10 of Quiz-1391 (Que-ID : 2653)
What is the inspiratory reserve volume
- 2500-3000 ml
- 500 ml
- 1000-1100 ml
- None of the above
Q. 11 of Quiz-1391 (Que-ID : 2654)
Volume air inspired or expired during normal respiration is known as
- TV
- IRV
- ERV
- RV
Q. 12 of Quiz-1391 (Que-ID : 2655)
which among the following is measured by spirometer
- Total lung capacity
- FRC
- RV
- TV
Q. 13 of Quiz-1391 (Que-ID : 2656)
Pressure contributed by an individual gas in a mixture of gas is known as
- Partial pressure
- Diffusion pressure
- Osmotic pressure
- None of the above
Q. 14 of Quiz-1391 (Que-ID : 2657)
Solubility of CO2 is how many times higher than O2
- 10-15
- 30-40
- 20-21
- 20-25
Q. 16 of Quiz-1391 (Que-ID : 2659)
What is the partial pressure of O2 in deoxygenated blood
- 45
- 40
- 95
- 43
Q. 17 of Quiz-1391 (Que-ID : 2660)
How many percent of co2 is carried by plasma in dissolved form
- 6
- 7
- 20-25
- None of the above
Q. 19 of Quiz-1391 (Que-ID : 2662)
Every 100ml of deoxy blood delivers approx
- 2ml of co2 to alveoli
- 3 of co2 to alveoli
- 4ml of co2 to alveoli
- 7ml of co2 to alveoli
Q. 20 of Quiz-1391 (Que-ID : 2663)
RBC contains very high quantity of which enzyme
- Carbonic anhydrase
- Lysosome
- Ligase
- None of the above
Q. 21 of Quiz-1391 (Que-ID : 2664)
which among the following is caused due to decreased respiratory surface area
- Astma
- Emphysema
- Sclerosis
- None of the above
Q. 22 of Quiz-1391 (Que-ID : 2665)
Whose role in respiratory rhythm regulation is insignificant
- Co2
- O2
- Both a and b
- None of the above
Q. 23 of Quiz-1391 (Que-ID : 2666)
Pneumotaxic centre is present in which region of brain
- Medulla
- Hypothalamus
- Pons
- None of the above
Q. 24 of Quiz-1391 (Que-ID : 2667)
Which type of curve is formed when percent of haemoglobin is plotted against po2
- Straight line
- Hyperbola
- Sigmoid
- Parabola
Q. 25 of Quiz-1391 (Que-ID : 2668)
which among the following is responsible to shift o2 dissociation curve right
- High Pco2
- Low pco2
- Low H+
- None of the above
More MCQs In - General Science Biology Zoology Class 11th NEET UG NEET UG Preparation
Q. 22 of Quiz- (Que-ID : 3390)
Process of biogas production is
- aerobic process
- anaerobic process
- active process
- passive process
Q. 27 of Quiz- (Que-ID : 598)
Which of the following is also known as laughing gas ?
- Nitric oxide
- Nitrous oxide
- Nitrogen pentoxide
- Nitrogen
Q. 10 of Quiz- (Que-ID : 3253)
Which one of the following phylum is characterized by absence of true coelom?
- Annelida
- Mollusca
- Echinodermata
- Nematoda
Q. 3 of Quiz- (Que-ID : 3546)
Which among the following is major component of Gobar Gas?
- Butane
- Ethane
- Propane
- Methane
Q. 10 of Quiz- (Que-ID : 2703)
How many serially arranged units called vertebrae forms vertebral column
- 23
- 24
- 26
- 28
Q. 11 of Quiz- (Que-ID : 2804)
Which one of the following is the correct statement regarding the particular psychotropic drug specified?
- Barbiturates cause relaxation and temporary euphoria
- Hashish causes after thought perceptions and hallucinations
- Opium stimulates nervous system and causes hallucinations
- Morphine leads to delusions and disturbed emotions
Q. 2 of Quiz- (Que-ID : 2720)
Which groups holds max nutritional diversity
- monera
- Plantae
- Fungi
- Anamalia
Q. 22 of Quiz- (Que-ID : 2915)
Which of the following groups of cells in the male gonad, represent haploid cells ?
- Spermatogonial cells
- Germinal epithelial cells
- Secondary spermatocytes
- Primary spermatocytes
Q. 10 of Quiz- (Que-ID : 3228)
In which of the following plants stems do not store the food materia
- potato
- ginger
- onion
- colocasia
Q. 9 of Quiz- (Que-ID : 3377)
The symbiotic association between fungi and roots of higher plants is referred to as
- lichen
- mycorrhiza
- biofertiliser
- biocontrol agent
Q. 5 of Quiz- (Que-ID : 2823)
A diploid parent plant body produces ________ gametes and a haploid parent plant body produces ________gametes.
- diploid, haploid
- haploid, diploid
- diploid, diploid
- haploid, haploid
Q. 11 of Quiz- (Que-ID : 2954)
If the base sequence of a codon in mRNA is 5’ – AUG – 3′ the sequence of tRNA pairing with it must be
- 5’ – UAC – 3’
- 5’ – CAU – 3’
- 5’-AUG – 3’
- 5’ – GUA – 3’
Q. 20 of Quiz- (Que-ID : 2633)
Duct of paratoid gland are known as
- Rhenius
- Stensons
- Warton
- None of the above
Q. 18 of Quiz- (Que-ID : 3411)
Restriction endonuclease cuts
- One stand of DNA at specific site
- Both strands of DNA
- Both strands of DNA at any site
- Single strand of RNA
Q. 9 of Quiz- (Que-ID : 3152)
Which of the following influence feedback inhibition of enzyme?
- End product
- External factors
- Enzyme
- Substrate
Q. 20 of Quiz- (Que-ID : 3438)
First biochemical to be produced commercially by microbial cloning and genetic engineering:
- Human insulin
- Penicillin
- Interferons
- Fertility factor
Q. 25 of Quiz- (Que-ID : 3068)
Most of the enzymes of the TCA cycle are present in
- Intermembrane space of mitochondria
- Mitochondrial matrix
- Inner membrane of mitochondria
- Cytoplasm
Q. 18 of Quiz- (Que-ID : 2911)
In humans, at the end of the first meiotic division, the male germ cells differentiate into the
- spermatids
- spermatogonia
- primary spermatocytes
- secondary spermatocytes
Q. 14 of Quiz- (Que-ID : 3357)
Artificial breeding of cattle is brough about by
- artiticial insemination
- super ovulation and embryo transplantation
- MOET
- all of these
Q. 12 of Quiz- (Que-ID : 2855)
Indentify the wrong statement regarding post-fertilisation development
- The ovary wall develops into pericarp.
- The outer integument of ovule develops into tegmen
- The fusion nucleus (triple nucleus) develops into endosperm.
- The ovule develops into seed.
Q. 22 of Quiz- (Que-ID : 2890)
Which one of the following groups includes sexually transmitted diseases caused by bacteria only ?
- Syphilis, gonorrhoea, chancroid
- Syphilis, chlamydiasis, chancroid
- Syphilis, gonorrhoea, scabies
- Syphilis, scabies, pediculosis
Q. 10 of Quiz- (Que-ID : 3003)
what type of plant is formed when colchicine is used in the process of development of Raphanobrassica?
- Autotetraploid
- Haploid
- Triploid
- Allotetraploid
Q. 19 of Quiz- (Que-ID : 3362)
The term ‘apiculture’ refers to
- tissue culture
- pisciculture
- bee-keeping
- animal-keeping
Q. 2 of Quiz- (Que-ID : 2645)
Which among the following have well developed respiratory system
- Cockroaches
- Earthworms
- Sponges
- Mammals
Q. 13 of Quiz- (Que-ID : 3431)
The Ti plasmid used in genetic engineering is obtained from:
- Bacillus thruingiensis
- E. Coii
- Agrobacterium hizogenes
- Agrobacterium tumefaciens
Q. 1 of Quiz- (Que-ID : 3394)
Biolistics (gene gun) is suitable for
- introducing rDNA into plant cells
- introducing rDNA into animal cells
- disarming the pathogen vectors
- DNA fingerprinting.
Q. 7 of Quiz- (Que-ID : 2620)
Which enzyme is responsible for digestion of milk protein in infants
- Renin
- Rennin
- Proteoses
- None of the above
Q. 24 of Quiz- (Que-ID : 2667)
Which type of curve is formed when percent of haemoglobin is plotted against po2
- Straight line
- Hyperbola
- Sigmoid
- Parabola
Q. 3 of Quiz- (Que-ID : 3296)
The presence of gill slits, in the embryos of vertebrates, supports the theory of
- metamorphosis
- biogenesis
- organic evolution
- recapitulation
Q. 10 of Quiz- (Que-ID : 2878)
The correct surgical procedure as a contraceptive method is
- ovariectomy
- hysterectomy
- vasectomy
- castration
Q. 7 of Quiz- (Que-ID : 2950)
Which was the last human chromosome to be completely sequenced ?
- Chromosome 1
- Chromosome 11
- Chromosome 21
- Chromosome X
Q. 16 of Quiz- (Que-ID : 3284)
Antheridia and Archegonia are sex organs of
- Moss
- Mucor
- Spirogyra
- Puccinia
Q. 9 of Quiz- (Que-ID : 3327)
Hepatitis B is transmitted through
- sneezing
- female Anopheles
- coughing
- blood transfusion
Q. 20 of Quiz- (Que-ID : 2838)
Select the monocarpic plant out of the following.
- Bamboo
- Litchi
- Mango
- all of these.
Q. 2 of Quiz- (Que-ID : 3420)
By means of following Trans gene expression obtained:
- Inhibition of a Innate gene
- An occured Biosynthetic passway develop
- A protein occured with genotype expressed his desired
- None of the above
Q. 12 of Quiz- (Que-ID : 2805)
The function of vagus nerve innervating the heart is to
- Initiate the heart beat
- Reduce the heart beat
- Accelerate the heart beat
- Maintain constant heart beat
Q. 19 of Quiz- (Que-ID : 3462)
Science linking heredity with environment is:
- Ecology
- Ecophysiology
- Genecology
- Genetics
Q. 2 of Quiz- (Que-ID : 2970)
Which among the following is not ureotelic
- Mammal
- Aquatic insect
- Terrestrial amphibian
- Marine fishes
Q. 4 of Quiz- (Que-ID : 3322)
Typhoid fever in human beings is caused by
- Plasmodium vivax
- Trichophyton
- Salmonella typhi
- Rhinoviruses
Q. 25 of Quiz- (Que-ID : 3318)
The extinct stone ancestor, who ate only fruits and hunted with stone weapons was
- Ramapithecus
- Australophecus
- Dryopithecus
- Homo erectus
Q. 18 of Quiz- (Que-ID : 3186)
Which membrane protects the eyes of frog in water?
- Tympanum
- Skin
- Sebaceous
- Nictitating
Q. 12 of Quiz- (Que-ID : 3005)
Choose the correct sequence. A. Pachytene B. Zygotene C. Leptotene D. Diakinesis E. Diplotene
- C, B, A, D, E
- C, A, B, E, D
- C, B, A, E, D
- D, B, C, E, A
Q. 3 of Quiz- (Que-ID : 3146)
Insulin is made up of _______ and _______.
- glucose and fructose
- glucose and fructose
- fructose and mannose
- mannose and glucose
Q. 6 of Quiz- (Que-ID : 2799)
Which portion of the brain is responsible for various emotions such as pleasure, fear, and happiness?
- Thalamus
- Reticular formation
- Hypothalamus
- Limbic system
Q. 10 of Quiz- (Que-ID : 3278)
Gymnosperms produce neither flower nor fruit because they do not possess
- Embryo
- Ovary
- Ovule
- Seed
Q. 8 of Quiz- (Que-ID : 3126)
Diffusion rate is affected by
- temperature
- membrane permeability
- gradient of concentration
- all of these
Q. 2 of Quiz- (Que-ID : 2995)
Cell plate grows from
- walls to the centre
- centre to the walls
- in patches
- simultaneously
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