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Biology
What is the basic structural and functional unit of the human kidney?
A
Nephron
B
Neuron
C
Alveolus
D
Osteon
Correct Answer
A
Biology
Which macromolecule is primarily responsible for storing and transmitting genetic information?
A
Carbohydrates
B
Lipids
C
Proteins
D
Nucleic acids
Correct Answer
D
Biology
What is the main function of red blood cells in the human body?
A
To fight infections
B
To clot blood at injury sites
C
To transport oxygen to tissues
D
To produce hormones
Correct Answer
C
Biology
Which process results in the formation of four genetically diverse haploid daughter cells?
A
Mitosis
B
Meiosis
C
Binary fission
D
Budding
Correct Answer
B
Biology
In humans, which blood type is considered the universal donor?
A
A+
B
B-
C
AB+
D
O-
Correct Answer
D
Biology
What is the primary pigment used by plants to absorb light during photosynthesis?
A
Carotenoid
B
Xanthophyll
C
Chlorophyll
D
Anthocyanin
Correct Answer
C
Biology
Which of the following is known as the "powerhouse of the cell"?
A
Nucleus
B
Mitochondrion
C
Ribosome
D
Endoplasmic reticulum
Correct Answer
B
Biology
Influenza is an
A
DNA virus
B
RNA virus
C
Retrovirus
D
Prion
Correct Answer
B
Biology
HIV belongs to a special class of viruses called
A
Adenoviruses
B
Retroviruses
C
Rhinoviruses
D
Herpesviruses
Correct Answer
B
Biology
Inside the head of phage is found the:
A
Protein
B
Nucleic acid (DNA or RNA)
C
Lipid
D
Enzyme
Correct Answer
B