Biology MCQs
Practice free Biology multiple-choice questions with instant answer feedback and step-by-step solutions. Click an option to check yourself, reveal the full explanation, and work through all 1146 questions — no login required.
Question 820hard
Which process requires cellular energy?
Question 821hard
When the concentration of water and solutes on either side of the cell membrane is same, the solution is said to be
Question 822medium
Water molecules enter plant epidermal cells by
Advertisement
Question 823hard
Root pressure is developed in
Question 824medium
What process accounts for species diversity?
Question 825easy
When are chromatids found in a cell?
Advertisement
Question 826medium
In cross section each centriole consists of a cylindrical array of how many microtubules?
Question 827medium
Which phase's intiation is indicated by the appearance of the chromosomes as thin threads in the nucleus?
Question 828easy
In which of these mitosis is missing and the cell divided by binary fission?