MCQs4All - Biology Collection

Biology MCQs for NTS, FPSC, CSS, PPSC, PMS, UTS, FTS, OTS, Teaching, CT, PTC, SST, B.Ed, M.Ed of past papers

Question. Lipid molecules can store double amount of energy as compared to same amount of carbohydrate because of high number of__________________?
  1. C-C bonds
  2. C-H bonds
  3. C-N bonds
  4. C-O bonds
Question. Normal body temperature in mamals like human beings is____________?
  1. 26 – 28°C
  2. 36 – 38°C
  3. 46 – 48°C
  4. 56 – 58°C
Question. Active transport is dependent on____________?
  1. Photosynthesis
  2. Respiration
  3. Photophosporylation
  4. None of these
Question. ___________ respiration is the process by which cell utilized oxygen and produces CO2 ?
  1. Cellular
  2. Organismic
  3. Both of these
  4. None of these
Question. How many vertebrae are present in vertebral column of man?
  1. 33 vertebrae
  2. 33 pairs of vertebrae
  3. 25 vertebrae
  4. 31 vertebrae
Question. Proteins comprise of ___________% of the total dry weight of a cell?
  1. 40%
  2. 50%
  3. 60%
  4. 70%
Question. Water is _________ times viscous than air?
  1. 50
  2. 1000
  3. 5000
  4. 8000
Question. A substance which binds at the active site of the enzyme but does not result in the formation of the products is called________________?
  1. Irreversible inhibitor
  2. Reversible inhibitor
  3. Competitive inhibitor
  4. Non-competitive inhibitor
Question. Cell wall is the non living , outermost boundary of__________cell?
  1. plant
  2. bacterial
  3. fungal
  4. all the above
Question. ___________ function as multisensory hydraulic valve?
  1. Lenticels
  2. Guard cells
  3. Hydathods
  4. All of these
Question. Non polar organic molecules are ___________ in water?
  1. Soluble
  2. Insoluble
  3. Partially soluble
  4. Depends upon condition
Question. Which of the following is a sentimentally arranged excretory system?
  1. Protonephridium
  2. Metanephridium
  3. Malpighian tubules
  4. Nephrons
Question. Those organisms which can prepare their own food from simple inorganic material and can store energy are called___________?
  1. Autotrophs
  2. Heterotrophs
  3. Procariotique
  4. Eu-cariotique