Name of the Organisation : University Of Library - Cochin University of Science and Technology
Name of the Exam : Common Admission Test (CAT)
Document Type : Sample Question Paper
Year: 2016
Subject: Life Science

Website : www.library.cusat.ac.in/cat/2016/
Download Model/Sample Question Papers: http://www.indianjobtalks.com/upload...ifeScience.pdf

CAT Life Science PG Final Model Question Paper :
1. The life originated first in
A. Water
B. Land
C. Air
D. Rocks

2. The development of a living organism from embryo to adult stage is called as
A. Phylogeny
B. Ontogeny
C. Embryology
D. Palaeobotany

3. What is the estimated number of forms of living beings on Earth?
A. 1.0 billion
B. 0.5 trillion
C. 8.7 million
D. 7.8 million

4. In the context of evolution, the ‘Natural Selection Theory ‘was proposed by
A. Darwin
B. Lamarck
C. Gregore Johannes Mendel
D. Weismann

5. Which one among the following is considered as the connecting link between non-living and living according to the theory of evolution of life?
A. Viruses
B. Bacteria
C. Phaeophyceae members
D. Green algae

6. The present day epoch is
A. Palaeozoic
B. Coenozoic
C. Mesozoic
D. Triassic

7. Ozone layer is considered to be important for life because it
A. Provides CO2 for respiration
B. Provides O2 for respiration
C. Protects from ultraviolet radiation
D. Protects from microwaves

8. We determine the age of fossil with the help of
A. Deposition of Calcium
B. Radioactive Carbon dating
C. By counting rings formed inside the fossil
D. By estimating silicates

9. According to ‘fluid mosaic model’, the correct sequence of organization of biomolecules in the plasma membrane is
A. Lipid-Protein-Protein-Lipid
B. Protein-Protein-Lipid-Lipid
C. Protein-Lipid-Lipid-Protein
D. Protein-Lipid-Lipid-Lipid

10. Cell organelles are embedded in the
A. Cytoplasm
B. Nucleus
C. Microtubules
D. Plasma membrane

11. Which one of the following contains blue-print for growth and development?
A. Nucleus
B. Nucleolus
C. Golgi complex
D. Tonoplast

12. When the cell is young, the cytoplasm fills the lumen of the cell. But in mature cells, the
cytoplasm
A. gets vacuolated
B. contracts
C. disintegrates
D. evaporates

13. In general, the plant cells are surrounded by cell-wall except one of the following
A. Shoot hairs
B. Root hairs
C. Gametes
D. Parenchyma cells

14. The highest number of mitochondria are found in
A. Meristematic tissue
B. Sclerenchyma cell
C. Xylem tracheid
D. Xylem vessel

15. A string of ribosomes joined together is called as
A. Lysosome
B. Spherosome
C. Polysome
D. Mitochondria

16. True nucleus is absent in which one of the following?
A. Green algae
B. Bacteria
C. Lichen
D. Fungi

17. Find the odd one from the following:
A. Leucoplasts
B. Chromoplasts
C. Chloroplasts
D. Tonoplasts

18. Who were awarded Nobel Prize for the discovery of double-helical structure of DNA?
A. J.D. Watson
B. F.H.C. Crick
C. Both A and B
D. Watson and Shutton

19. The bond between two strands of DNA is
A. Carbon
B. Hydrogen
C. Oxygen
D. Nitrogen

20. The cell-organelles can better be isolated by
A. Chemical analysis
B. Autoradiography
C. X-ray diffraction
D. Differential centrifugation

21. Which one of the following structures carries out a similar function in both plant and animal cell?
A. Contractile vacuole
B. Cell-wall
C. Mitochondrion
D. Chloroplast

22. Which one of the following exhibits endosymbiosis?
A. Mitochondria
B. Ribosomes
C. Peroxisomes
D. Centrioles

23. Which one of the following option is correct regarding occurrence of surrounding membrane in the cell structures?
A. Cytoplasm, nucleus, starch grains
B. Chromosomes, nucleus , mitochondria
C. Chromosome, chloroplast , starch grains
D. Mitochondrion, tonoplast, chloroplast

24. DNA strands run
A. Parallel
B. Partly parallel, partly anti-parallel
C. Anti-parallel
D. Horizontal

25. Nucleoside consists of
A. Sugar
B. Sugar and phosphate
C. Sugar, phosphate and a nitrogenous base
D. Phosphate