chapters 2-5 Flashcards
what is bacteria
their unicellular organisms, they lack a nucleus and all other complex organelles. and their DNA is located in the cytoplasm
what is osmosis
Its a type of movement of particles specifically for the movement of water particles, moving through a partially permeable membrane. the water moves from a area of high water concentration to area of low concentration.
Nucleus
an organelle that houses the DNA
what is diffusion
A type of movement of particles, that move and interact randomly. Without using the energy of the particles, they move from high - low concentration.
what is net movement
the overall change
what are enzymes
enzymes are protein catalysts that speed along reactions
what is used to detect starch
iodine
what is used to detect sugars
benedicts solutions
what is one polymer of glucose
glycogen/starch/cellulose
what is the difference between a fat and an oil
fats are solid at room temperature whereas oils are liquid
what are the main factors that affect enzymes
temperature & pH
what is a prokaryotic cell?
a cell without a nucleus
what is the common characteristic in enzyme nomenclature
ending with -ase
what is the part of the enzyme called where the substrate attaches to
the active site (the part where the substrates bind through)
what is active transport
movement from area of low to high concentration - uses energy produced by mitochondria
