MCAT BIOLOGY REVIEW CHAPTER 1 2025-2026 CORRECT VERIFIED ANSWERS
Four fundamental tenets of cell theory: - (ANSWER)1) all living things are made of cells
2) cells are the basic fundamental unit of life
3) all cells came from pre-existing cells
4) cells contain genetic material which is passed down from parent cell to daughter cell
Characteristics of prokaryotic cells: - (ANSWER)- no membrane bound organelles
- no nucleus
- smaller than eukaryotic cells
- only exist as unicellular
Characteristics of eukaryotic cells: - (ANSWER)- membrane bound organelles
- have a nucles
*&^%$#
- exist as unicellular or multicellular
Membrane bound organelles: - (ANSWER)- organelles are suspended in semifluid cytosol
enclosed by the membrane of the cell
- most organelles are membrane bound, allowing for the compartmentalization of functions
Characteristics of a eukaryotic cell membrane: - (ANSWER)- phospholipid bilayer
- hydrophilic heads interact with aqueous environment inside and outside of the cell
- hydrophobic tails interact with each other to create a selectively permeable layer to separate the
inside of the cell from the outside
Cytosol: - (ANSWER)intracellular fluid that allows for the diffusion of substances into and out
of the cell
Nucleus: - (ANSWER)contains DNA which is organized into linear structures called
chromosomes
Chromosomes: - (ANSWER)linear structure of DNA
Mitosis: - (ANSWER)cell division allowing for the formation of 2 daughter cells
Nuclear membrane/envelope: - (ANSWER)surrounds the nucleus and separates the nuclear
environment from the cytosol
Nuclear pores: - (ANSWER)- in the nuclear membrane
- allow selective 2-way exchange material between the cytoplasm and the nucleus
Genes: - (ANSWER)coding regions of dna
Four fundamental tenets of cell theory: - (ANSWER)1) all living things are made of cells
2) cells are the basic fundamental unit of life
3) all cells came from pre-existing cells
4) cells contain genetic material which is passed down from parent cell to daughter cell
Characteristics of prokaryotic cells: - (ANSWER)- no membrane bound organelles
- no nucleus
- smaller than eukaryotic cells
- only exist as unicellular
Characteristics of eukaryotic cells: - (ANSWER)- membrane bound organelles
- have a nucles
*&^%$#
- exist as unicellular or multicellular
Membrane bound organelles: - (ANSWER)- organelles are suspended in semifluid cytosol
enclosed by the membrane of the cell
- most organelles are membrane bound, allowing for the compartmentalization of functions
Characteristics of a eukaryotic cell membrane: - (ANSWER)- phospholipid bilayer
- hydrophilic heads interact with aqueous environment inside and outside of the cell
- hydrophobic tails interact with each other to create a selectively permeable layer to separate the
inside of the cell from the outside
Cytosol: - (ANSWER)intracellular fluid that allows for the diffusion of substances into and out
of the cell
Nucleus: - (ANSWER)contains DNA which is organized into linear structures called
chromosomes
Chromosomes: - (ANSWER)linear structure of DNA
Mitosis: - (ANSWER)cell division allowing for the formation of 2 daughter cells
Nuclear membrane/envelope: - (ANSWER)surrounds the nucleus and separates the nuclear
environment from the cytosol
Nuclear pores: - (ANSWER)- in the nuclear membrane
- allow selective 2-way exchange material between the cytoplasm and the nucleus
Genes: - (ANSWER)coding regions of dna
