BSc Biochemistry Sem I ATKT BIO CHEM 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 9:3:3:1 i. 1:2:1 iv. 9:7 Answer the following in one sentence 10
   • a. Mention types of ER present in plant cell
   • c. Why estuarine ecosystem are highly productive ?
   • d. What is food web?
   • e. Define a test cross
2. Q2 Answer any two of the following. 20 marks
   • a. Give an account of chemical and physical composition of plant cell wall
   • b. Describe the ultra-structure of chloroplast
   • c. Explain fluid mosaic model of plasma membrane
   • d. Describe in detail the structure of plant cell
3. Q3 Answer any two of the following. 20 marks
   • a. Discuss laws of thermodynamics in an ecosystem
   • b. Briefly explain biotic and abiotic components of an ecosytem
   • c. Explain Y shaped energy flow model
   • d. Discuss different components of fresh water ecosystem Answer any two of the following. 20
   • a. Define epistasis. Explain recessive epistasis with a suitable example
   • b. Explain complete and incomplete dominance with examples
   • c. What are multiple alleles. Explain with reference to inheritance of blood groups
   • d. Two non-allelic genes govern the plumage in Parakeet. The genotype BY produces green plumage, Byy produces blue, bbY produces yellow and bbyy produces white plumage. Give the phenotype of the parents, genotype and phenotype of progeny and phenotypic ratio in the following crosses:
4. Q5 Write short notes on any four 20 marks
   • a. Types of endoplasmic reticulum
   • b. Plasmodesmata and its functions
   • d. Pyramid of Biomass
   • e. Dominant Epistasis
   • f. Law of segregation

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