Ch. 1 questions
Terms
undefined, object
copy deck
- What are examples of carbohydrates?
- cellulose (cell wall in plants); cell membranes
- how does convex lens magnify objects?
- convex lens allows you to see more of the object b/c of how the light hits
- which microscope magnifies the most?
- electron microscope
- What is the building block of proteins?
- amino acids
- how are lipids used in a cell?
- help form cell membrane; long term energy storage
- Why would someone die if they were stranded in the middle of the ocean and only drank salt water?
- salt makes cells thirstier & the body of the person would shrivel up
- state 1 reason why water is impt. to cells
- w/out water chemical reactions may not occur correctly or at all
- compare & contrast diffusion and osmosis
- diffusion is when molecules move from an area of high concentration to an are of lower concentration; osmosis is just like diffusion but w/ water
- if cells don't have enough amino acids and can't produce more, what may happen?
- cells may have a lack of protein b/c amino acids are the building blocks of protein
- What are examples of nucleic acids?
- fats, oils, butter, waxes, DNA & RNA, cholesterol
- compare/contrast active & passive transport & give examples of both
-
active & passive transport are both ways that molecules get into cells but active requires energy and passive doesn't
ex: active - diffusion & osmosis
passive - engulfing - what 2 compounds are impt. to cell membrane?
- carbohydrates & lipids
- what are building blocks of carbs?
- gluclose
- What helps form cell MEMBRANES and is a long term energy storage?
- Lipids