Biology Mcqs

Adult birds normally possess only one functional____________?

A. Ureter
B. Ovary
C. Lung
D. Testis

Proteins comprise of ___________% of the total dry weight of a cell?

A. 40%
B. 50%
C. 60%
D. 70%

Double fertilization occurs in_________?

A. All plants
B. All seed plants
C. Gymnosperms
D. Angiosperms

The one which is incorrect pair?

A. Sori – Indusium
B. Arthrophytes – Jointed
C. Dichotomous – Vernation
D. Lycopods – Ground pries

Animals obtain carbohydrates mainly from___________?

A. Glucose
B. Starch
C. Sucrose
D. Glycogen

Peptide bond is_____________?

A. C-N link
B. C- O lind
C. N-H link
D. C-H 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

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

Pick the odd one out

A. Psilophyton
B. Rhynia
C. Cooksonia
D. 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