Biology - Study Mode

[#416] The cell was discovered by
Correct Answer

(A) Hooke

Explanation

Solution: The cell was discovered by Robert Hooke.

[#417] The Powerhouse of the cell is
Correct Answer

(D) Mitochondria

Explanation

Solution: Work on mitochondria did not stop in the 1950s after it was named “the powerhouse of the cell.”

[#418] In which year, Schwann and Schleiden suggested that cells were the basic unit of life
Correct Answer

(B) 1839

Explanation

Solution: Credit for developing cell theory is usually given to three scientists: Theodor Schwann, Matthias Jakob Schleiden, and Rudolf Virchow. In 1839, Schwann and Schleiden suggested that cells were the basic unit of life.

[#419] Sickle-cell anaemia is due to
Correct Answer

(B) Genes

Explanation

Solution: Sickle-cell anaemia is due to genes.

[#420] Who gave the term "Antibiotics"?
Correct Answer

(D) Selman Waksman

Explanation

Solution: The word 'antibiotics' was first used over 30 years later by the Ukrainian-American inventor and microbiologist Selman Waksman, who in his lifetime discovered over 20 antibiotics.