BIO 220 Topic 1 Quiz
Course
BIO 220 ENVIRONMENTAL SCIENCE (BIO220)
Which level of biological organization is considered the basic unit of life?
A. Tissue
B. Organ
C. Cell
D. Organ system
Answer: C. Cell
Rationale: The cell is the smallest structural and functional unit of living organisms.
Which biomolecule is primarily responsible for storing genetic information?
A. Lipids
B. Proteins
C. Carbohydrates
D. Nucleic acids
Answer: D. Nucleic acids
Rationale: DNA and RNA carry genetic instructions in cells.
What is the primary function of mitochondria?
A. Protein synthesis
B. Energy production (ATP)
C. Lipid storage
D. Detoxification
Answer: B. Energy production (ATP)
Rationale: Mitochondria generate ATP through cellular respiration.
Which organelle is responsible for protein synthesis?
A. Ribosome
B. Lysosome
C. Golgi apparatus
D. Nucleus
Answer: A. Ribosome
Rationale: Ribosomes assemble amino acids into proteins.
Which structure controls movement of substances into and out of the cell?
A. Cell wall
B. Cell membrane
C. Nucleus
D. Cytoplasm
Answer: B. Cell membrane
Rationale: The cell membrane is selectively permeable.
, What is the main function of the nucleus?
A. Energy production
B. Waste breakdown
C. Control of cellular activities
D. Lipid synthesis
Answer: C. Control of cellular activities
Rationale: The nucleus contains DNA and regulates cell functions.
Which type of transport requires energy (ATP)?
A. Diffusion
B. Osmosis
C. Active transport
D. Facilitated diffusion
Answer: C. Active transport
Rationale: Active transport moves substances against a concentration gradient using energy.
Which organelle breaks down waste and cellular debris?
A. Golgi apparatus
B. Lysosome
C. Ribosome
D. Endoplasmic reticulum
Answer: B. Lysosome
Rationale: Lysosomes contain enzymes for digestion of waste materials.
What is the basic unit of structure in all living organisms?
A. Atom
B. Cell
C. Molecule
D. Tissue
Answer: B. Cell
Rationale: All organisms are made of one or more cells.
Which process involves the movement of water across a semipermeable membrane?
A. Diffusion
B. Osmosis
C. Active transport
D. Endocytosis
Answer: B. Osmosis
Rationale: Osmosis is the passive movement of water molecules across membranes.
11. What is the function of the Golgi apparatus?
A. Energy production
B. Protein modification and packaging
Course
BIO 220 ENVIRONMENTAL SCIENCE (BIO220)
Which level of biological organization is considered the basic unit of life?
A. Tissue
B. Organ
C. Cell
D. Organ system
Answer: C. Cell
Rationale: The cell is the smallest structural and functional unit of living organisms.
Which biomolecule is primarily responsible for storing genetic information?
A. Lipids
B. Proteins
C. Carbohydrates
D. Nucleic acids
Answer: D. Nucleic acids
Rationale: DNA and RNA carry genetic instructions in cells.
What is the primary function of mitochondria?
A. Protein synthesis
B. Energy production (ATP)
C. Lipid storage
D. Detoxification
Answer: B. Energy production (ATP)
Rationale: Mitochondria generate ATP through cellular respiration.
Which organelle is responsible for protein synthesis?
A. Ribosome
B. Lysosome
C. Golgi apparatus
D. Nucleus
Answer: A. Ribosome
Rationale: Ribosomes assemble amino acids into proteins.
Which structure controls movement of substances into and out of the cell?
A. Cell wall
B. Cell membrane
C. Nucleus
D. Cytoplasm
Answer: B. Cell membrane
Rationale: The cell membrane is selectively permeable.
, What is the main function of the nucleus?
A. Energy production
B. Waste breakdown
C. Control of cellular activities
D. Lipid synthesis
Answer: C. Control of cellular activities
Rationale: The nucleus contains DNA and regulates cell functions.
Which type of transport requires energy (ATP)?
A. Diffusion
B. Osmosis
C. Active transport
D. Facilitated diffusion
Answer: C. Active transport
Rationale: Active transport moves substances against a concentration gradient using energy.
Which organelle breaks down waste and cellular debris?
A. Golgi apparatus
B. Lysosome
C. Ribosome
D. Endoplasmic reticulum
Answer: B. Lysosome
Rationale: Lysosomes contain enzymes for digestion of waste materials.
What is the basic unit of structure in all living organisms?
A. Atom
B. Cell
C. Molecule
D. Tissue
Answer: B. Cell
Rationale: All organisms are made of one or more cells.
Which process involves the movement of water across a semipermeable membrane?
A. Diffusion
B. Osmosis
C. Active transport
D. Endocytosis
Answer: B. Osmosis
Rationale: Osmosis is the passive movement of water molecules across membranes.
11. What is the function of the Golgi apparatus?
A. Energy production
B. Protein modification and packaging
