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Biology 1525 MCQs [All-Courses]

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Biology covers key concepts of life, organisms, and human systems with exam-focused notes for PPSC, FPSC, KPPSC, BPSC.,NTS, OTS, AJKPSC. Clear, concise topics help students prepare effectively for competitive tests.

All Topics  1525

A compound produced as a result of a chemical reaction of an alcohol with an acid in which water molecule is released is called________________?
A Monosaccharide
B Fatty acid
C Neutral lipid
D Nucleic acid
Correct Answer: Neutral lipid
__________ is example of pure form of cellulose?
A Silk
B Wool
C Cotton
D Paper
Correct Answer: Cotton
The cell wall of oomycetes is chiefly composed of___________?
A Chitin
B Cellulose
C Lignin
D Proteins
Correct Answer: Cellulose
The one which can tolerate highest external osmotic pressure is __________?
A Algae
B Amoeba
C Fungi
D Bacteria
Correct Answer: Fungi
Which one is abundant in animals___________?
A Starch
B Glycogen
C Cellulose
D None of these
Correct Answer: Glycogen
Mycoplasmas have been included in bacteria because:
A Do not have a cell wall
B Are heterotrophic
C Lack membrane bounded organelles
D Reproduce by binary fission
Correct Answer: Lack membrane bounded organelles
Which one gives blue colour with iodine_______________?
A Starch
B Glycogen
C Cellulose
D Polysaccharide
Correct Answer: Starch
Which of the following polysaccharide is called animal starch_________________?
A Starch
B Glycogen
C Cellulose
D None of these
Correct Answer: Glycogen
The unicellular organisms ingest large molecules into their cytoplasm from the external environment without previously digesting them. This process is called___________?
A Diffusion
B Osmosis
C Phagocytosis
D Plasmolysis
Correct Answer: Phagocytosis
The covalent bond between two monosaccharide subunits is called________________?
A Phosphodiester bond
B Peptide bond
C Glycosidic Bond
D Ionic bond
Correct Answer: Glycosidic Bond
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