Exploring Biology Concepts

What is the basic unit of life?

• Molecule

• Organism

• Atom

• Cell

Describe the function of the cell membrane.

• The cell membrane acts as a storage unit for genetic material.

• The cell membrane provides energy for cellular processes.

• The cell membrane is responsible for protein synthesis.

• The cell membrane regulates the movement of substances in and out of the cell.

What organelle is responsible for energy production?

• Mitochondria

• Nucleus

• Ribosome

• Chloroplast

Explain the process of photosynthesis.

• Photosynthesis is the process by which plants convert light energy into chemical energy, producing glucose and oxygen from carbon dioxide and water.

• Photosynthesis is the process of converting chemical energy into light energy.

• Photosynthesis produces only carbon dioxide and water as byproducts.

• Photosynthesis occurs only at night when plants absorb carbon dioxide.

What is the chemical equation for cellular respiration?

• C6H12O6 + 3 O2 -> 3 CO2 + 3 H2O + energy

• C6H12O6 + 6 CO2 -> 6 O2 + 6 H2O + energy

• C6H12O6 + 2 O2 -> 2 CO2 + 2 H2O + energy

• C6H12O6 + 6 O2 -> 6 CO2 + 6 H2O + energy

Define the term 'gene'.

• A gene is a structure that only exists in plants.

• A gene is a unit of heredity in living organisms, made up of DNA, that encodes the information for producing proteins.

• A gene is a type of cell that carries oxygen in the blood.

• A gene is a type of protein found in cells.

What is the role of DNA in heredity?

• DNA is only found in the nucleus of a cell.

• DNA has no role in the inheritance of traits.

• DNA is the molecule that carries genetic information and is responsible for heredity.

• DNA is responsible for energy production in cells.

How do dominant and recessive alleles differ?

• Recessive alleles are always more common than dominant alleles.

• Both dominant and recessive alleles express traits with one copy each.

• Dominant alleles express traits with one copy; recessive alleles require two copies.

• Dominant alleles require two copies; recessive alleles express traits with one copy.

What is an ecosystem?

• A type of plant species

• A method of farming

• A geographical location

• An ecosystem is a community of living organisms and their physical environment interacting as a system.

Describe the relationship between producers and consumers.

• Producers provide goods and services, and consumers purchase and use them, creating a cycle of supply and demand.

• Producers and consumers have no impact on each other's activities.

• Producers only sell products, while consumers only create them.

• Consumers provide raw materials for producers to use.