HB Characteristics of Life Review

What does the term "biotic" describe?

• A nonliving factor in an ecosystem

• A living or once-living organism in an ecosystem

• A chemical reaction

• A physical process

What does the term "abiotic" describe?

• A living or once-living organism in an ecosystem

• A nonliving factor in an ecosystem

• A biological process

• An animal species

To be a living organism, you must be made of

• Atoms

• Molecules

• One or more cells

• Tissues

Which of the following is NOT one of the three common components of all cells?

• Genetic material (DNA)

• Cytoplasm

• Plasma membrane

• Mitochondria

What is the smallest unit of life?

• Atom

• Molecule

• Cell

• Tissue

Which of the following is a component of all cells?

• Ribosome

• Endoplasmic reticulum

• Golgi apparatus

• Plasma membrane

Which of the following is a characteristic of prokaryotic cells?

• Larger cells

• DNA in nucleus

• Unicellular: made of a single cell

• Have specialized membrane-bound organelles

What is found in the region called the nucleoid in prokaryotic cells?

• Ribosomes

• DNA

• Mitochondria

• Golgi apparatus

Which of the following is an example of prokaryotes?

• Plants

• Animals

• Archaebacteria

• Fungi

Which type of cells are described as having specialized membrane-bound organelles?

• Prokaryotes

• Eukaryotes

• Both prokaryotes and eukaryotes

• Neither prokaryotes nor eukaryotes