Prep Right
Questions › PMS Punjab › Zoology › 2021
PPSC · PMS Punjab 2021

Zoology, Paper II

100 marks · 3 hours · 10 questions
This paper Zoology · all yearsQ. 1 · Differentiate between reversible and irreversible…Q. 2 · Explain the series of chemical…Q. 3 · How has excretion of nitrogenous…Q. 4 · Describe the motility of gastrointestinal…Q. 5 · Define multiple alleles. Explain a…Q. 6 · What is a genetic code?…Q. 7 · How has Neo-Darwinism validated the…Q. 8 · Differentiate between natural selection and…Q. 9 · Describe a closed ecological system.Q. 10 · How is nutrient cycling connected…With this paper← 20212022 →
3 hours · questions hide until you reveal them

Section A

Q. 1
  1. (a)Differentiate between reversible and irreversible enzyme inhibition. [10]
  2. (b)Differentiate between catabolic and anabolic pathways of metabolism. [10]
(20)
Q. 2
  1. (a)Explain the series of chemical reactions occurring during Krebs cycle. [10]
  2. (b)What is meiotic nondisjunction? What are its consequences for human beings? [10]
(20)

Section B

Q. 3
  1. (a)How has excretion of nitrogenous wastes evolved in aquatic and terrestrial animals? [10]
  2. (b)Which different mechanisms animals use to regulate the exchange of heat between themselves and the environment? [10]
(20)
Q. 4
  1. (a)Describe the motility of gastrointestinal tract in animals. [10]
  2. (b)Name neurohormones released from the mammalian posterior pituitary gland (neurohypophysis), their target sites and functions. [10]
(20)

Section C

Q. 5
  1. (a)Define multiple alleles. Explain a case example of multiple alleles. [10]
  2. (b)Give a brief account of the recessive genetic disorders (recessively inherited disorders). [10]
(20)
Q. 6
  1. (a)What is a genetic code? Which general features characterize genetic code? [10]
  2. (b)What are the transgenic animals? How are they produced and what are their uses? [10]
(20)

Section D

Q. 7
  1. (a)How has Neo-Darwinism validated the Darwinism? Explain Darwin's theory in the light of Neo-Darwinism. [10]
  2. (b)How natural selection leads to the formation of adaptations? Explain with an example. [10]
(20)
Q. 8
  1. (a)Differentiate between natural selection and genetic drift. [10]
  2. (b)What is Hardy-Weinberg equilibrium? Explain different factors which act as sources of microevolutionary change. [10]
(20)
Q. 9
  1. (a)Describe a closed ecological system. [10]
  2. (b)Discuss the efficiency of energy transfer in ecosystems. [10]
(20)
Q. 10
  1. (a)How is nutrient cycling connected with pollution? Explain relationship between carbon cycle and global warming. [10]
  2. (b)How do animals adapt themselves to their habitats? What are animals' adaptations to desert environment? [10]
(20)

Related papers

Zoology 2016Zoology 2019Zoology 2019Zoology 2020Zoology 2020Zoology 2021Zoology 2022Zoology 2023Zoology 2023Botany 2021Chemistry 2021Chemistry 2021English Essay 2021English Literature 2021English Precis & Composition 2021Islamic Studies 2021Journalism & Mass Communication 2021Political Science 2021Political Science 2021Commerce 2021Commerce 2021Computer Science 2021Economics 2021Economics 2021Education 2021Education 2021Geology 2021Geology 2021History 2021Law 2021Law 2021Mathematics 2021Persian 2021Persian 2021Philosophy 2021Principles of Engineering 2021Principles of Engineering 2021Sociology 2021Sociology 2021Statistics 2021Statistics 2021Veterinary Science 2021Veterinary Science 2021Zoology 2021Psychology 2021Public Administration 2021Public Administration 2021Social Work 2021Social Work 2021Urdu 2021Urdu 2021

About this paper

The 2021 PMS Punjab Zoology paper set by the PPSC. Question wording only; questions marked “Not yet checked” have not been compared with the official paper yet.

Disclaimer Prep Right is independent and not affiliated with PPSC.