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. Stentor is a/an____________?
  1. Ciliate
  2. Foraniniferan
  3. Actinopods
  4. Apicomplexan
Question. Cyanobacteria reproduce by____________?
  1. Binary fission
  2. Mitosis
  3. Meiosis
  4. Conjugation
Question. Reduction in photosynthesis is of____________?
  1. O2
  2. CO2
  3. H2O
  4. light energy
Question. The monosaccharide found in some bacteria and occurring rarely are______________?
  1. Trioses
  2. Hexoses
  3. Tetroses
  4. Pentoses
Question. Photosynthesis carried out by terrestrial plants is _________ of total photosynthesis?
  1. 1-2%
  2. 5%
  3. 10%
  4. 20%
Question. Which of the followings are effectors______________?
  1. Muscles
  2. Glands
  3. Sensory organs
  4. Both ‘a’ & ‘b’
Question. Which of the following excretory structure is associated with gut of the organism?
  1. Protonephridium
  2. Metanephridium
  3. Malpighian tubules
  4. Nephrons
Question. Constricting ring around nematode is formed by_____________?
  1. Arthrobotrys
  2. Pleurotus ostreatus
  3. Mildews
  4. All of these
Question. Abscisic acid promotes flowering in short day plants and inhibits in long day plants, which of the following is antagonistic to abscisic acid in terms of flowering______________?
  1. Gibberellins
  2. Cytokinins
  3. Auxins
  4. Ethene.
Question. Which structure of protein gives information aboutnumber and sequence of amino acids in it_______________?
  1. Primary structure
  2. Secondary structure
  3. Tertiary structure
  4. Quaternary structure
Question. Penicillium reproduce via___________?
  1. Spores
  2. Conidia
  3. Budding
  4. Fragmentation
Question. Which of the following occurs in anaerobic respiration but not in aerobic respiration?
  1. Release of CO2
  2. Reduction of NAD
  3. Formation of ATP
  4. Production of ethanol from acetaldehyde
Question. Factory of Ribosomal systhesis is__________?
  1. Cytoplasm
  2. Nucleus
  3. Nucleolus
  4. Endoplasmic reticulum