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BOTANY 2025
(Science Pre-Medical Groups)
TIME: 2 Hours (45 Marks)
SECTION 'A' (Multiple Choice Questions)(09)
NOTE: i) This section consists of 18 part questions and all are to be answered. Each question carries ½ mark.
ii) Do not copy the part questions in your answerbook. Write only the answer in full against the proper number of the question and its part.
1 Choose the correct answer for each from the given options:
(i) The oxygen gas released during photosynthesis comes from:
*H2O ✓
*CO2
*Glucose
*CO3 and H2O both
(ii) The mode of nutrition is sulphur bacteria is:
*Heterotrophic
*Parasitic
*Photosynthesis
*Chemosynthetic ✓
(iii) Mod cow disease is caused by:
*Virus
*Viroid
*Prion ✓
*Bacteria
(iv) Bacteria grow and multiply rapidly during the phase:
*LAG
*LOG ✓
*Stationary
*Decline
(v) This is an obligate parasite:
*Bacteria
*Virus ✓
*Algae
*Fungi
(vi) This organelle release oxygen:
*Mitochondria
*Chloroplast ✓
*Ribosome
*Golgi bodies
(vii) This element is responsible for opening and closing of stomach:
*Potassium ✓
*Nitrogen
*Phosphorus
*Magnesium
(viii) Sunken stomach is the characteristic feature of:
*Mesophytes
*Halophytes
*Xerophytes ✓
*Hydrophytes
(ix) The capacity of living system to lose water is:
*Osmotic pressure
*Water potential ✓
*Osmosis
*Diffusion
(x) This is responsible for secondary growth in plants:
*Apical meristem
*Lateral meristem ✓
*Intercalary meristem
*Epidermal meristem
(xi) The process that convert pyruvic acid into three molecules of CO2 is called:
*C3 cycle
*C4 cycle
*TCA cycle ✓
*Calvin cycle
(xii) This is the sexual reproduction in bacteria:
*Binary fission
*Conjugation ✓
*Conidia
*Budding
(xiii) Number of ATP produced during substrate level phosphorylation in Kerb's cycle when one glucose is consumed:
*One
*Two ✓
*Three
*Four
(xiv) Mitochondria are the centers of:
*Transpiration
*Aerobic respiration ✓
*Photosynthesis
*Anaerobic respiration
(xv) The bacterial cell wall dissolved by enzyme, is called:
*Amylase
*Lysozyme ✓
*Lipase
*Phosphatase
(xvi) In the Lysogenic cycle , this replicates along with the bacterial genome:
*Virion
*prophage ✓
*Capsid
*Plasmid
(xvii) The enzymes of glycolysis are present in:
*Cytoplasm ✓
*Nucleus
*Lysosome
*Mitochondria
(xviii) This is not a functions of sclerenchyma tissues:
*Structural support
*Nutrient transport ✓
*Cellular rigidity
*Mechanical strength
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