BSc Botany Sem I ATKT BOTANY PAPER II Question Paper - Mumbai University | munotes

Questions asked in this paper

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• ii) Figures to the right indicate full marks

1. Q1 A) Choose the correct option from the following and rewrite the sentence 10 marks
   • a. Dark reaction of photosynthesis takes place in of chloroplast
   • b. Calcium and Magnesium pectates constitute the
   • c. Linear DNA molecules with histone proteins are found in cells
   • d. membranes are associated with enzyme systems showing
   • e. polysaccharide is made up of glucose molecules linked by
   • f. The rate at which the heterotrophic organism synthesizes energy yielding substance is called
   • g. consists of evergreen and tall trees
   • h. Each step in the food chain is a level
   • 1. When is crossed with pure recessive parent, it is called as
   • j. The genetic constitution of organism represents the
2. Q1 B the following in one to two sentence 10 marks
   • a. Define net primary productivity
   • b. Why chloroplasts are important plant cell organelle?
   • c. Give any two functions of cell wall
   • d. What is heterozygote ?
   • e. Define monohybrid ratio
3. Q2 Answer any two of following. 20 marks
   • a. Explain the ultra structure of Plasma membrane. Add a note on its functions
   • b. Describe the ultra structure and functions of Endoplasmic reticulum
   • c. Explain the structure of a typical Eukaryotic plant cell
   • d. Write an account on the ultra structure and functions of chloroplast
4. Q3 Answer any two of following. 20 marks
   • a. Define ecosystem. Give an account of its different components
   • b. Give an account of tropical evergreen and temperate deciduous forests
   • c. Explain upright energy flow model
   • d. What is food chain and food web. Explain different types of food chain Answer any two of following. 20
   • a. Explain intermediate inheritance and co-dominance with suitable example
   • b. Define dihybrid ratio. Explain it with suitable example
   • c. Explain gene interaction with respect to comb pattern in fowl
   • d. squashes gene ‘W’ is epistatic to gene “Y’ and ‘y’ and produces white colored fruits whenever present in homozygous or heterozygous dominant form WW or Ww. The gene produces yellow colored fruits when present in dominant form YY or Yy. Homozygous recessive yy produces green colored fruits. Give the genotypes and phenotypes of progeny of the following crosses Also give the phenotype of parents
5. Q5 Write short notes on any four 20 marks
   • a. Functions of cell wall
   • b. Plasmodesmata and its functions
   • c. Laws of thermodynamics
   • d. Pyramid of Biomass
   • e. Laws of Segregation
   • f. Multiple alleles

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