Which of the following is a prokaryotic organism?
A. Amoeba
B. Paramecium
C. Bacteria
D. Fungi
C. Bacteria
Explanation: Bacteria are prokaryotic. The others are eukaryotic.
Which organelle is responsible for photosynthesis in plant cells?
A. Mitochondrion
B. Nucleus
C. Chloroplast
D. Golgi apparatus
C. Chloroplast
Explanation: Chloroplasts contain chlorophyll and perform photosynthesis.
What controls all the activities of an animal cell?
A. Mitochondria
B. Ribosome
C. Nucleus
D. Golgi apparatus
C. Nucleus
Explanation: The nucleus contains the cell’s DNA and acts as the control center.
What is the chemical symbol for gold?
A. Au
B. Ag
C. Gd
D. Go
A. Au
New York Giants
Which structure is found in eukaryotic cells but not in prokaryotic cells?
A. Ribosome
B. Nucleus
C. Cell membrane
D. Cytoplasm
B. Nucleus
Explanation: Prokaryotes lack a membrane-bound nucleus.
Which of the following structures is found only in plant cells and not in animal cells?
A. Ribosomes
B. Nucleus
C. Cell wall
D. Mitochondria
C. Cell wall
Explanation: Plant cells have a rigid cell wall made of cellulose.
Which organelle is known as the "powerhouse" of the cell?
A. Endoplasmic reticulum
B. Nucleus
C. Mitochondria
D. Lysosome
C. Mitochondria
Explanation: Mitochondria produce energy through cellular respiration.
What is the pH of a neutral substance like pure water?
7
What is Mrs. M's favorite color?
Pink
What do prokaryotic and eukaryotic cells have in common?
A. Nucleus
B. Mitochondria
C. Ribosomes
D. Chloroplasts
C. Ribosomes
Explanation: Both have ribosomes, but eukaryotic ribosomes are larger and more complex.
Which pigment is found in chloroplasts?
A. Hemoglobin
B. Chlorophyll
C. Melanin
D. Keratin
B. Chlorophyll
Explanation: Chlorophyll is the green pigment that captures sunlight for photosynthesis.
Which organelle is responsible for protein synthesis?
A. Ribosome
B. Lysosome
C. Golgi body
D. Vacuole
A. Ribosome
Explanation: Ribosomes build proteins from amino acids.
What gas do humans breathe in to survive?
Oxygen
What is Mrs. M's favorite food?
Pizza
Which of the following is true about eukaryotic cells?
A. They lack DNA
B. They are only found in bacteria
C. They contain membrane-bound organelles
D. They are smaller than prokaryotic cells
C. They contain membrane-bound organelles
Explanation: Eukaryotes have organelles like mitochondria, ER, and Golgi bodies.
What is the role of the cell wall in a plant cell?
A. Transport nutrients
B. Store DNA
C. Provide structure and protection
D. Synthesize proteins
C. Provide structure and protection
Explanation: The cell wall supports and protects the plant cell.
What is the function of the Golgi apparatus?
A. Producing energy
B. Packaging and modifying proteins
C. DNA replication
D. Photosynthesis
B. Packaging and modifying proteins
Explanation: The Golgi body processes and ships proteins and lipids.
Which organ pumps blood throughout the body?
Heart
What is the formula for calculating speed?
Speed = Distance ÷ Time
Explanation: Speed measures how fast something moves over a distance.
Which of these organelles is found only in eukaryotic cells?
A. Ribosome
B. Cell membrane
C. Mitochondrion
D. Cytoplasm
C. Mitochondrion
Explanation: Only eukaryotes have mitochondria.
Where is genetic material stored in a plant cell?
A. Ribosomes
B. Nucleus
C. Cytoplasm
D. Cell wall
B. Nucleus
Explanation: The nucleus contains the cell's DNA.
Which organelle is responsible for digesting worn-out organelles and waste?
A. Ribosome
B. Lysosome
C. Mitochondria
D. Nucleus
B. Lysosome
Explanation: Lysosomes contain enzymes that break down waste materials.
What is the main source of energy for life on Earth?
C. The Sun
Explanation: The sun provides light and heat that support life.
What is the primary purpose of meiosis?
A. Growth and repair
B. Asexual reproduction
C. Production of gametes
D. Protein synthesis
C. Production of gametes
Explanation: Meiosis creates sperm and egg cells with half the number of chromosomes.