Question

review academic vocabulary lipid protein enzyme substrate 1. :polymer of amino acids 2. :biological catalysts 3. :examples include fats and cholesterol 4. :what an enzyme works on preview biology vocabulary try to guess the meaning of each boldfaced word from its context. phrase my guess 1. the cell membrane, like a tea bag, is characterized by selective permeability. 2. the smell of baking bread spreads throughout your home by diffusion. 3. cells in your immune system gobble up invading bacteria and recycle old cell parts through phagocytosis.

Explanation:

1. Proteins are polymers of amino - acids.
2. Enzymes are biological catalysts.
3. Lipids include fats and cholesterol.
4. Substrate is what an enzyme acts on.

For preview:

1. Selective permeability: Allows some substances through cell membrane.
2. Diffusion: Movement of substances from high to low concentration.
3. Phagocytosis: Cells engulfing and recycling materials.

Answer:

1. protein
2. enzyme
3. lipid
4. substrate

For preview:

1. Allows some substances through cell membrane
2. Movement from high to low concentration
3. Cells engulfing and recycling materials