Reporting Category 1
Terms in this set (36)
the basic unit of life
Cell membrane (plasma membrane)
surrounds all cells and regulates what enters and leaves the cell to maintain homeostasis
Particle made up of DNA and a capsid. Reproduce only by infecting living cells.
outer protein coat of a virus
process in which a virus enters a cell, makes a copy of itself, and causes the cell to burst
process by which a virus embeds its DNA into the DNA of the host cell and is replicated along with the host cell's DNA
series of events that cells go through as they grow and divide
period of the cell cycle between cell divisions; includes G1, S, & G2 phases
period of cell growth
period where DNA replication occurs
to make a copy of an organism's DNA
cell prepares, or gets ready, for cell division
part of cell division during which the cell nucleus divides (nuclear division)
first phase of mitosis; chromosomes become visible and nuclear envelope breaks down
second phase of mitosis; chromosomes line up across the MIDDLE of the cell
third phase of mitosis; chromosomes are pulled APART
fourth phase of mitosis; chromosomes uncoil and TWO new nuclear envelopes form
division of the cytoplasm during cell division
a strand of DNA that is visible because it is coiled up tightly
any molecule that is produced by a living organism; examples are carbohydrates, proteins, lipids, and nucleic acids
biomolecule made up of carbon, hydrogen, and oxygen atoms; used for quick energy for living things
macromolecule made mainly from carbon and hydrogen atoms (very very few oxygen atoms); used to store energy and makes up cell membranes
macromolecule that contains carbon, hydrogen, oxygen, and nitrogen; function as enzymes, provide structural support for the body, transport materials, and help fight disease
macromolecule containing carbon, hydrogen, oxygen, nitrogen, and phosphorus; store and transmit genetic information (DNA and RNA)
speeds up chemical reactions by lowering the activiation energy
a difference in concentration
transport where molecules move down a concentration gradient from HIGH to LOW; no energy required
a type of passive transport of molecules from a high to low concentration; no energy required
diffusion with the help of a "door" or protein CHANNEL; type of passive transport
facilitated diffusion of WATER through a selectively permeable membrane; a type of passive transport
when the concentration of two solutions is the same; a cell will stay the SAME size
a solution that has a higher concentration of solute (lower concentration of water) than the cell that is placed inside of it.
a solution that has a lower concentration of solute (higher concentration of water) than the cell that is placed inside of it.
ENERGY-REQUIRING process that moves material across a cell membrane against a concentration gradient from LOW to HIGH
Swollen. What happens to a plant cell when water enters by osmosis.
The pressure exerted on a plant cell wall by water entering the cell by osmosis.