biology 1
This type of organism does NOT have a nucleus and membrane-bound organelles.
What is a prokaryote?
Water is classified as a ____ molecule. Why?
Polar; because of its polar covalent bond where oxygen is slightly negative and hydrogen is slightly positive
This reaction removes a water molecule in order to bind monomers together.
What is dehydration?
This element has the ability to make up to four bonds.
Carbon
A form of transport that moves molecules down their concentration gradient.
What is passive transport?
A single stranded structure utilized in protein synthesis
What is RNA?
What simple molecules are the basic units of proteins?
What are amino acids?
How many bonds can carbon make?
4
This is the organelle where cellular respiration takes place and is found in most eukaryotic cells.
Mitochondria
What is the difference between glycogen, starch, and cellulose?
Cellulose: makes up the structure of plant cell walls
Starch: How plants store their food
Glycogen: how animals store their food
ALL cell types have these four features in common.
What are cytoplasm, DNA, ribosomes, and a cell membrane?
Protons have a ___ charge, neutrons have ___ charge and both are located in __________.
This is where components of ribosomes are made.
What is the nucleolus?
A biomolecule that serves as a fast source of energy?
What are carbohydrates
What is a nucleus and in what kind of cells is it found in?
A nucleus controls and regulates the activities of the cell and carries the genes. They are found in eukaryotic cells.
A bond made by the transfer of electrons between two atoms.
What is an ionic bond?
The phrase descent with modification refers to...
heritable traits that increase a species' survival.
This property of water contributes to the phenomena that allows small insects to walk across water's surface.
What is surface tension?
process by which plant cells convert solar energy to food, usually sugars
What is photosynthesis?
This macromolecule is made up of 3 fatty acids and a glycerol.
Made of mostly phospholipids embedded with proteins.
What is the plasma membrane (cell membrane)?
What organelles and structures make up the endomembrane system?
Nuclear envelope, rough ER, smooth ER, Golgi apparatus, transport vesicles, lysosomes, plasma membrane
What is active transport?
the movement of ions or molecules across a cell membrane against their concentration gradient, assisted by enzymes and requiring energy.
This phrase refers to the movement of the phospholipid bilayer and the proteins along with other molecules embedded within the bilayer.
What is the fluid mosaic model?
What are the three domains of life?
What are Archaea, Bacteria, and Eukarya?