QUESTIONS EXAM 2026/2027 AND HIGH YIELD PRACTICE
QUESTIONS COMPLETE ACCURATE EXAM APPROVED
QUESTIONS AND CORRECT VERIFIED SOLUTIONS (100%
CORRECT VERIFIED ANSWERS) CURRENTLY UPDATED
VERSION 2026 EDITION
Parasitism
A situation in which one organism lives in or on another organism and
feeds on that organism, eg. lice.
Commensalism
A situation in which two organisms live in close contact; one benefits and
the other is not affected, eg. ivy growing on tree trunk.
Invasive Species
A species introduced by humans into new environments with unforeseen
consequences, e.g. lion fish.
Monoculture
Farming strategy in which large fields are planted with a single crop.
,Extirpation
Habitat loss and pollution which can lead to the loss of a species from a
particular region (not globally) - isolated habitat loss.
Sustainability
How ecosystem support organisms, remain diverse and meeting the
needs of the present without compromising the ability of future
generations to meet their own needs. This helps the ecosystem to be
more resistant to change, have more feeding relationships, more niches
filled, and more nutrient cycling.
Cytoplasm
A jellylike fluid inside the cell, surrounds organelles and contains a "soup"
of important chemicals needed for cell processes.
Vacuole
A membrane sac (organelle) inside a cell that stores food and water (and
in plants, maintain cell shape).
Lysosome
A vacuole (organelle) with digestive enzymes - breaks down food and
involved in apoptosis (controlled cell death).
,Cell Membrane
A membrane filled with proteins and enzymes - control what goes in and
what comes out of cells, separates cell from external environment.
Endoplasmic Reticulum
Network of membrane that helps synthesize (make) proteins and lipids.
Ribosome
Very small structures made of DNA and protein usually found on ER
(endoplasmic reticulum). This makes proteins by "reading" genetic code.
Golgi Apparatus
A membrane tubes in a bundle with buds of membrane coming off. This
sorts, modifies, packages, and transports proteins.
, Mitochondria
An oval-shaped organelle with a double membrane. This is the
powerhouse of the cell and it produces energy from food (sugars) and
performs cellular respiration.
Nuclear Membrane
A membrane around the nucleus that is very porous, and it allows the
genetic code to be communicated with the ribosomes and allows other
materials in and out of the nucleus.
Nucleus
A part of the cell containing DNA and RNA and responsible for growth
and reproduction. It holds and protects chromatin and is the control
centre of the cell.
Nucleolus
A circular structure inside nucleus which makes ribosomes.