PREP GUIDE 2026 CORE TOPIC
BREAKDOWN AND SOLVED ITEMS
◉ cell membrane
Answer: provides a barrier between the interior and exterior of the
cell it regulates the flow of substances in and out of the cell
◉ Cytoplasm
Answer: fluid inside the cell in which the chemical reactions that
enabe life take place
◉ Ribosomes
Answer: build all the proteins needed by the cell
◉ cell wall
Answer: strong, supporting layer around the cell membrane in some
cells
◉ flagellum
, Answer: a slender threadlike structure, especially a microscopic
whiplike appendage that enables many protozoa, bacteria,
spermatozoa, etc., to swim.
◉ Nucleus
Answer: Control center of the cell. Contains DNA.
◉ nuclear envelope
Answer: A double membrane that surrounds the nucleus in the cell
◉ Mitochondria
Answer: Powerhouse of the cell, organelle that is the site of ATP
(energy) production
◉ Chloroplasts
Answer: Capture energy from sunlight and use it to produce food for
the cell
◉ Endoplasmic Reticulum (ER)
Answer: The transportation system of the cell. It moves materials
around the cell
◉ Golgi apparatus