Diffusion review

This organelle is where glucose is converted into usable energy (ATP)

• chloroplast

• mitochondria

• nucleus

• cell membrane

Tags

NGSS.HS-LS1-7

This organelle is found in plant cells, but not animal cells

• mitochondria

• ribosome

• chloroplast

• nucleus

Most cell membranes are composed of

• proteins and carbohydrates

• lipids and carbohydrates

• proteins and lipids

• lipids and nucleic acids

Enzymes in your mouth digest carbohydrates into their building blocks. What are the building blocks?

• glucose

• amino acids

• nucleic acids

• fatty acids

When I turn on my wax melter, the scent spreads throughout the room because

• scent molecules move from an area of high concentration to low concentration

• scent molecules move from an area of low concentration to high concentration

• the air begins to swirl around the melter sending the scent around the room

• all of the above are true

a chicken egg membrane is similar to a cell membrane in that they are both

• clear/see through

• encased in a hard shell

• easily breakable

• semi permeable

What is the main difference between active and passive transport?

• active transport moves gases and passive moves liquids

• active transport takes place in plant cells and passive in animal cells

• active transport requires energy and passive does not

• active transport takes place in the bloodstream and passive does not

After 20 mins, you would find the starch

• 1/2 in the bag and 1/2 in the beaker

• mostly in the bag and just some in the beaker

• all in the beaker

• all in the bag

Tags

NGSS.MS-PS1-2

why does saltwater and distilled water have the opposite effect on the cells?

• salt has a lower concentration of water than the cells so it leaves

• distilled water has a higher concentration of water than the cells so it enters

• salt makes the water go in and distilled water makes it come out

• it likes salty popcorn

Tags

NGSS.HS-LS1-3

A substance is most likely to diffuse into a cell when

• the pH of the substance is greater than the pH of the cell

• the concentration of the substance is greater outside the cell than inside

• it is enclosed in an organelle such as a vacuole

• it is a large organic food molecule such as protein or starch