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. Enteron in coelenterates acts as___________?
  1. Digestive cavity
  2. Body cavity
  3. Transporting cavity
  4. all of these
Question. Which of the following is responsible for Irish potato famine?
  1. Dinoflagellates
  2. Kleps
  3. Physarum polycephalum
  4. Phytophthora infestans
Question. Important factors which affect the capacity of haemoglobin to combine with oxygen is
  1. Temperature
  2. Carbon dioxide
  3. pH
  4. All of these
Question. Who developed the vaccine against anthrax?
  1. Louis Pasteur
  2. Edward Jennar
  3. Leuvenhoek
  4. Alexander Fleming
Question. Cellular respiration is essentially a/an _____________ process?
  1. Oxidation.
  2. Reduction.
  3. Redox.
  4. None of the above.
Question. Gaseous exchange in birds occurs at level of_______________?
  1. Alveoli
  2. Air sacs
  3. Bronchi
  4. Parabronchi
Question. The cell wall is usually composed of two overlapping halves called epitheca and hypotheca in__________?
  1. Diatoms
  2. Desmids
  3. Pyrrophyta
  4. Chlorophyta
Question. Mode of transmission of hepatitis A is__________?
  1. Serum
  2. Faeco-oral
  3. Sexual contact
  4. All of these
Question. Which chemical component has the same % in bacterial as well as the mammalian cell_____________?
  1. Water
  2. Carbohydrate
  3. Proteins
  4. Lipids
Question. Rapid movement of leaves of mimosa on touching is an example of _____________?
  1. Turgor movement
  2. Nastic movement
  3. Tropic movements.
  4. Growth movement
Question. Which of the following carbohydrate is tasteless___________?
  1. Monosaccharide
  2. Oligosaccharide
  3. Polysaccharide
  4. None of these
Question. Following possess bilateral symmetry as larva and radial symmetry as adult:
  1. Chordata
  2. Hydra
  3. Echinodermata
  4. Hemichordata
Question. Group of living organisms of the same species living in the same place at the same time is called ?
  1. Community
  2. Population
  3. Ecosystem
  4. Biome