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GED Science Term 1 Test (120 Marks)
Section 1: Multiple Choice (50 Marks, 1 Mark Each)
Choose the correct answer.
1. What is the basic unit of life?
a) Atom
b) Cell
c) Organ
d) Molecule
2. Which organelle is responsible for producing energy in the cell?
a) Nucleus
b) Mitochondrion
c) Ribosome
d) Golgi apparatus
3. DNA carries genetic information in the form of:
a) Proteins
b) Lipids
c) Nucleotides
d) Enzymes
4. What process allows plants to convert sunlight into energy?
a) Respiration
b) Photosynthesis
c) Fermentation
d) Digestion
5. Which type of reproduction produces genetically identical offspring?
a) Sexual reproduction
b) Asexual reproduction
c) Fertilization
d) Pollination
6. In an ecosystem, a lion is an example of a:
a) Producer
b) Decomposer
c) Herbivore
d) Consumer
7. Which of the following is NOT a function of the human skeletal system?
a) Support and movement
b) Blood cell production
c) Digestion of food
d) Protection of internal organs
8. The powerhouse of the cell is the:
a) Lysosome
b) Chloroplast
c) Mitochondrion
d) Nucleus
9. What do we call organisms that make their own food?
a) Consumers
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b) Decomposers
c) Producers
d) Carnivores
10. Which part of the cell controls what enters and exits?
a) Cell wall
b) Cell membrane
c) Cytoplasm
d) Mitochondria
11. What is the primary function of ribosomes in a cell? a) Energy production b) Protein synthesis c) Waste
removal d) DNA replication
12. Which organelle is responsible for packaging and distributing proteins? a) Mitochondria b) Nucleus c)
Golgi apparatus d) Ribosomes
13. What is the primary function of the cytoplasm? a) Store genetic material b) Control cell functions c)
Provide a medium for chemical reactions d) Produce energy
14. Which macromolecule is the main component of the cell membrane? a) Proteins b) Lipids c) Carbohydrates
d) Nucleic acids
15. Which type of transport requires energy to move substances across the cell membrane? a) Passive transport
b) Diffusion c) Active transport d) Osmosis
16. What is the role of chlorophyll in photosynthesis? a) Break down glucose b) Absorb light energy c) Release
oxygen d) Transport water
17. Which gas is a byproduct of photosynthesis? a) Carbon dioxide b) Oxygen c) Nitrogen d) Hydrogen
18. What is the main purpose of cellular respiration? a) Convert glucose into ATP b) Produce oxygen c) Store
energy in the nucleus d) Transport water
19. What is the main difference between mitosis and meiosis? a) Mitosis produces two identical cells; meiosis
produces four genetically different cells. b) Mitosis occurs in reproductive cells only. c) Meiosis results in
diploid cells. d) Mitosis creates genetic variation.
20. Which stage of mitosis involves chromosomes lining up at the center of the cell? a) Prophase b) Metaphase
c) Anaphase d) Telophase
21. In which organelle does aerobic respiration occur? a) Chloroplast b) Mitochondria c) Ribosome d) Golgi
apparatus
22. Which type of organism is a decomposer in an ecosystem? a) Plant b) Herbivore c) Bacteria d) Carnivore
23. Which biomolecule is the primary source of energy for most organisms? a) Proteins b) Lipids c)
Carbohydrates d) Nucleic acids
24. What is the function of DNA in cells? a) Transport nutrients b) Provide energy c) Store genetic information
d) Control water balance
25. Which human body system is responsible for transporting oxygen and nutrients? a) Nervous system b)
Digestive system c) Circulatory system d) Skeletal system
26. Which part of a plant cell provides structural support? a) Nucleus b) Cell membrane c) Cell wall d)
Chloroplast
27. Which type of RNA carries the genetic code from DNA to ribosomes? a) rRNA b) mRNA c) tRNA d) DNA
28. How many chromosomes are in a normal human body cell? a) 23 b) 46 c) 12 d) 64
29. What is the primary function of enzymes? a) Store energy b) Speed up chemical reactions c) Break down
DNA d) Transport oxygen
30. What is the end product of anaerobic respiration in muscle cells? a) Oxygen b) Lactic acid c) Glucose d)
Carbon dioxide
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31. What is the function of white blood cells? a) Carry oxygen b) Fight infections c) Store energy d) Digest
food
32. What type of energy is used in photosynthesis? a) Chemical energy b) Heat energy c) Light energy d)
Mechanical energy
33. Which human organ system removes waste from the blood? a) Digestive system b) Circulatory system c)
Excretory system d) Nervous system
34. What is the main function of the nervous system? a) Transport nutrients b) Provide movement c) Process
information and control responses d) Regulate digestion
35. What type of reproduction increases genetic variation? a) Asexual reproduction b) Binary fission c) Sexual
reproduction d) Budding
36. What is the function of the respiratory system? a) Circulate blood b) Absorb nutrients c) Exchange gases d)
Store energy
37. Which organ is responsible for filtering toxins from the blood? a) Liver b) Stomach c) Heart d) Lungs
38. Which type of muscle is involuntary and found in the digestive tract? a) Skeletal muscle b) Cardiac muscle
c) Smooth muscle d) Voluntary muscle
39. What is the term for the movement of water across a selectively permeable membrane? a) Diffusion b)
Active transport c) Osmosis d) Facilitated diffusion
40. What is the primary role of hemoglobin in the blood? a) Digest food b) Carry oxygen c) Produce enzymes
d) Store energy
41. What is the smallest structural unit of the nervous system? a) Neuron b) Muscle fiber c) White blood cell d)
Mitochondrion
42. Which process helps regulate body temperature through sweating? a) Digestion b) Homeostasis c)
Photosynthesis d) Fermentation
43. What is the primary function of the large intestine? a) Absorb nutrients b) Store bile c) Reabsorb water d)
Produce red blood cells
44. What structure protects the lungs and assists in breathing? a) Diaphragm b) Liver c) Ribcage d) Stomach
45. What is the genetic material in all living organisms? a) RNA b) ATP c) DNA d) Proteins
Section 2: True or False (20 Marks, 2 Marks Each)
Write T for True and F for False.
(Keep existing True/False questions)
Section 3: Short Answer Questions (25 Marks, 5 Marks Each)
(Keep existing short-answer questions)
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Section 4: Long Answer Questions (25 Marks, 5 Marks Each)
(Keep existing long-answer questions)
Total Marks: 120
Multiple Choice (50 Marks, 1 Mark Each)
True/False (20 Marks, 2 Marks Each)
Short Answer (25 Marks, 5 Marks Each)
Long Answer (25 Marks, 5 Marks Each)
End of Test
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