The Cell
This is the phase of the cell cycle where DNA is copied before the cell divides.
Interphase
This lobe helps you feel touch, pressure, and temperature.
Parietal Lobe
This body part is your first layer of defense in the immune system, acting like a physical shield that keeps most germs out.
Skin
This step of photosynthesis uses ATP and NADPH to turn carbon dioxide into glucose.
Calvin Cycle
In relation to the cell membrane, and how only some things can pass.
Semi-permeable
This process requires energy to move molecules from low concentration to high concentration.
Active Transport
This iron‑rich protein in red blood cells carries oxygen.
Hemoglobin
Because it has no organelles, no metabolism, and isn’t considered alive, this particle must infect a host cell to reproduce.
Virus
During the light‑dependent reactions, this molecule is split to provide electrons and release oxygen.
Water (H2O)
This process moves water across a membrane from high concentration to low concentration.
Osmosis
This organelle packages and ships proteins, acting like the cell’s “post office.”
Golgi Apparatus
This is the name for the tiny blood vessels where oxygen and nutrients move into your cells.
Capillaries
This is the general term for anything that can make you sick, like bacteria or viruses.
Pathogen
This tube‑like tissue carries water from the roots up through the plant.
Xylem
This term describes an organism’s genetic makeup, as opposed to its physical traits.
Genotype
This organelle stores water, nutrients, and waste; it’s much larger in plant cells.
Vacuole
It's the part of the nervous system that the brain is included in.
Central Nervous System
This defense forms after your body fights an infection or receives a vaccine.
Active Immunity
These tiny openings on the underside of leaves allow gases like oxygen and carbon dioxide to move in and out.
Stomata
The process of making mRNA from DNA.
Transcription
This organelle breaks down waste and old cell parts using enzymes.
Lysosome
This is your body’s natural 24‑hour cycle that helps control sleep and wakefulness. It's disrupted when you get jet lag!
Circadian Rhythm
These white blood cells are the body’s first responders and swallow invading bacteria.
Phagocytes
In the light‑dependent reactions, this structure inside the chloroplast is where sunlight is absorbed by chlorophyll.
Thykaloid
A three‑base sequence on mRNA that codes for an amino acid.
Codon