About this Study Set
This study set covers Life Science through
20 practice questions.
Dive into foundational concepts of Life Science, covering everything from the smallest cells to vast ecosystems, perfect for curious teenagers exploring biology. Every question includes the correct answer so you can learn as you go — pick any format above to get started.
Questions & Answers
Browse all 20 questions from the
Explore the Living World: Life Science Fundamentals study set below.
Each question shows the correct answer — select a study format above to practice interactively.
1
What is the basic structural and functional unit of all known organisms?
-
A
Atom
-
B
Molecule
-
C
Cell
-
D
Organ
2
Which process do plants use to convert light energy into chemical energy?
-
A
Respiration
-
B
Fermentation
-
C
Photosynthesis
-
D
Transpiration
3
What is the name of the complex molecule that carries genetic information in all living organisms?
-
A
RNA
-
B
Protein
-
C
DNA
-
D
Carbohydrate
4
Which human organ is responsible for pumping blood throughout the body?
-
A
Lungs
-
B
Liver
-
C
Kidney
-
D
Heart
5
What type of organism produces its own food, typically using sunlight?
-
A
Consumer
-
B
Decomposer
-
C
Producer
-
D
Scavenger
6
Which kingdom includes mushrooms, yeasts, and moulds?
-
A
Plantae
-
B
Animalia
-
C
Fungi
-
D
Protista
7
What gas do humans and other animals inhale for respiration?
-
A
Carbon Dioxide
-
B
Nitrogen
-
C
Oxygen
-
D
Hydrogen
8
Which part of a plant is primarily responsible for absorbing water and nutrients from the soil?
-
A
Leaf
-
B
Stem
-
C
Flower
-
D
Root
9
What is the term for a group of organisms that can reproduce with one another and produce fertile offspring?
-
A
Family
-
B
Genus
-
C
Species
-
D
Order
10
What type of animal has a backbone or spinal column?
-
A
Invertebrate
-
B
Arthropod
-
C
Vertebrate
-
D
Mollusc
11
Which of the following is a macronutrient essential for building and repairing tissues in the body?
-
A
Vitamin C
-
B
Iron
-
C
Protein
-
D
Calcium
12
What is the name for the process where water vapor rises into the atmosphere from plants?
-
A
Condensation
-
B
Precipitation
-
C
Evaporation
-
D
Transpiration
13
Which part of the cell controls its activities and contains genetic material?
-
A
Mitochondria
-
B
Ribosome
-
C
Cytoplasm
-
D
Nucleus
14
What is the term for all the living organisms in an area interacting with their non-living environment?
-
A
Population
-
B
Community
-
C
Habitat
-
D
Ecosystem
15
Which sense organ is responsible for detecting light and allowing us to see?
-
A
Ear
-
B
Nose
-
C
Tongue
-
D
Eye
16
What simple sugar is the primary source of energy for cells?
-
A
Lactose
-
B
Sucrose
-
C
Fructose
-
D
Glucose
17
Which major organ in the human body is responsible for filtering waste from the blood to produce urine?
-
A
Liver
-
B
Lungs
-
C
Kidneys
-
D
Pancreas
18
What is the process by which an organism becomes better suited to its environment?
-
A
Mutation
-
B
Migration
-
C
Adaptation
-
D
Reproduction
19
What is the protective outer layer of a plant cell that provides structural support?
-
A
Cell membrane
-
B
Nucleus
-
C
Cytoplasm
-
D
Cell wall
20
Which blood component is primarily responsible for carrying oxygen to the body's tissues?
-
A
White blood cells
-
B
Platelets
-
C
Plasma
-
D
Red blood cells
