Comprehensive HESI A2 & TEAS Entr
ance Exam Study Guide 2025 | Biology,
Grammar, Vocabulary & Math | Practic
e Tests & Answer Keys
, | What are different versions of a gene called? |
Alleles |
Biology Study Guide | What type of cells are produced in meiosis? |
Gametes (sex cells) |
Cell Division & Genetics | What holds the genetic code for each person?
| DNA |
| Question | Answer | | What is DNA made of? | Nucleotides |
| :--- | :--- | | How does the mRNA strand compare to the
| How many chromosomes do sperma and egg DNA strand ? | Identical, except Thymine (T) is
cells produce in meiosis? | 23 | replaced with Uracil (U) |
| How many chromosomes do sperm and egg
cells produce in mi to sis? | 46 | Cellular Structure & Function
| How many pairs of chromosomes do all
humans have? | 23 pairs | | Question | Answer |
| What phase does DNA replication take place | :--- | :--- |
in? | S phase | | What helps the cell maintain its shape and
adapt? | Cy to skele to n |
,| What gives the cell the ability to move and | What is the first step in metabolizing food to
maintain proper structure? | Microtubules | cellular energy? | Glycolysis |
| What organelle is responsible for packaging, | What is the sequence of reactions in aerobic
processing, and shipping? | Golgi Apparatus | respiration that takes place in the mi to
| What is the site of cellular respiration in chondria? | The Krebs Cycle |
eukaryotic cells? | Mi to chondria | | What drives the cell forward? | Propulsion |
| What organelle is responsible for protein | What is the intake of food through the cell
synthesis and membrane production? | membrane, creating a food vacuole? | Phagocy
Endoplasmic Reticulum (Rough ER) | to sis |
| What organelle pushes water out of the cell? | | Movement of ions and other substances
Contractile Vacuole | across cell membranes without the need for
| What organelle functions in s to rage, waste energy is called? | Passive Transport |
disposal, and protection in plant cells? |
Vacuoles | Membranes & Transport
| What is the main component of blood plasma?
| Water | | Question | Answer |
| :--- | :--- |
, | The plasma membrane is composed of what | Question | Answer |
three main components? | Lipids, Proteins, and | :--- | :--- |
Carbohydrates | | What is the magnification of an ocular lens on
| What are plasma membranes mostly made of? a microscope? | 10x |
| Lipids | | What part of the microscope is the slide
| How many phospholipid layers make up the placed on? | Stage |
plasma membrane? | 2 | | What kind of cell is an animal cell? |
| Fill in the blank: The cellular membrane is Eukaryotic |
the most important component of the cell,
contributing to protection, communication, Heredity & Traits
and the passage of substances in to and out
of the cell. | Cellular Membrane | | Question | Answer |
| How is oxygen transported through the body? | :--- | :--- |
| Circula to ry System | | A bird's body structure and the function of its
wings are determined by what? | Hereditary fac
Microscope Use & Classification to rs |
ance Exam Study Guide 2025 | Biology,
Grammar, Vocabulary & Math | Practic
e Tests & Answer Keys
, | What are different versions of a gene called? |
Alleles |
Biology Study Guide | What type of cells are produced in meiosis? |
Gametes (sex cells) |
Cell Division & Genetics | What holds the genetic code for each person?
| DNA |
| Question | Answer | | What is DNA made of? | Nucleotides |
| :--- | :--- | | How does the mRNA strand compare to the
| How many chromosomes do sperma and egg DNA strand ? | Identical, except Thymine (T) is
cells produce in meiosis? | 23 | replaced with Uracil (U) |
| How many chromosomes do sperm and egg
cells produce in mi to sis? | 46 | Cellular Structure & Function
| How many pairs of chromosomes do all
humans have? | 23 pairs | | Question | Answer |
| What phase does DNA replication take place | :--- | :--- |
in? | S phase | | What helps the cell maintain its shape and
adapt? | Cy to skele to n |
,| What gives the cell the ability to move and | What is the first step in metabolizing food to
maintain proper structure? | Microtubules | cellular energy? | Glycolysis |
| What organelle is responsible for packaging, | What is the sequence of reactions in aerobic
processing, and shipping? | Golgi Apparatus | respiration that takes place in the mi to
| What is the site of cellular respiration in chondria? | The Krebs Cycle |
eukaryotic cells? | Mi to chondria | | What drives the cell forward? | Propulsion |
| What organelle is responsible for protein | What is the intake of food through the cell
synthesis and membrane production? | membrane, creating a food vacuole? | Phagocy
Endoplasmic Reticulum (Rough ER) | to sis |
| What organelle pushes water out of the cell? | | Movement of ions and other substances
Contractile Vacuole | across cell membranes without the need for
| What organelle functions in s to rage, waste energy is called? | Passive Transport |
disposal, and protection in plant cells? |
Vacuoles | Membranes & Transport
| What is the main component of blood plasma?
| Water | | Question | Answer |
| :--- | :--- |
, | The plasma membrane is composed of what | Question | Answer |
three main components? | Lipids, Proteins, and | :--- | :--- |
Carbohydrates | | What is the magnification of an ocular lens on
| What are plasma membranes mostly made of? a microscope? | 10x |
| Lipids | | What part of the microscope is the slide
| How many phospholipid layers make up the placed on? | Stage |
plasma membrane? | 2 | | What kind of cell is an animal cell? |
| Fill in the blank: The cellular membrane is Eukaryotic |
the most important component of the cell,
contributing to protection, communication, Heredity & Traits
and the passage of substances in to and out
of the cell. | Cellular Membrane | | Question | Answer |
| How is oxygen transported through the body? | :--- | :--- |
| Circula to ry System | | A bird's body structure and the function of its
wings are determined by what? | Hereditary fac
Microscope Use & Classification to rs |
