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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

The one which is incorrect pair?
A Sori – Indusium
B Arthrophytes – Jointed
C Dichotomous – Vernation
D Lycopods – Ground pries
Correct Answer: Dichotomous – Vernation
Animals obtain carbohydrates mainly from___________?
A Glucose
B Starch
C Sucrose
D Glycogen
Correct Answer: Starch
Peptide bond is_____________?
A C-N link
B C- O lind
C N-H link
D C-H link
Correct Answer: C-N link
Which one the following fatty acid is more soluble in an organic solvent and has higher melting point____________?
A Acetic acid
B Butyric acid
C Palmitic acid
D All have same
Correct Answer: Palmitic acid
Which of the following statement is incorrect5 for fats containing unsaturated fatty acid_____________?
A They contain double bond
B They are usually solid at room temperature
C They are lighter than water
D Their specific gravity is less than 1
Correct Answer: They are usually solid at room temperature
Pick the odd one out
A Psilophyton
B Rhynia
C Cooksonia
D Psilotum
Correct Answer: Psilotum
Fatty acids containing 18 C atoms and a single double bond is____________?
A Saturated Fatty acid
B Unsaturated fatty acid
C Oleic Acid
D Plamitic acid
Correct Answer: Oleic Acid
Lipid molecules can store double amount of energy as compared to same amount of carbohydrate because of high number of__________________?
A C-C bonds
B C-H bonds
C C-N bonds
D C-O bonds
Correct Answer: C-H bonds
One celled green ptotists are included in___________?
A Monera
B Algae
C Slime molds
D Plants
Correct Answer: Algae
Lipids are soluble in which of the following_______________?
A Water
B Ether
C All solvents
D Not in any of the above
Correct Answer: Ether
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