Cells and Microorganisms

What do scientist use to see cells?

• camera

• magnifying glass

• microscope

• telescope

Which organelle in plant cells makes the food for the cell?

• nucleus

• chloroplast

• cell wall

• cytoplasm

Tags

NGSS.MS-LS1-2

NGSS.MS-LS1-6

How do plant cells make their own food?

• the cytoplasm helps with digestion

• the cell wall makes it rigid so it can collect food to grow

• the nucleus directs the sunlight to make food for the plant

• the chloroplasts absorb sun light and helps the plant to photosynthesize

Tags

NGSS.MS-LS1-6

NGSS.MS-LS1-7

Gerald observed a cell and said he could tell it was a plant cell because it had a cell wall. Is he correct?

• Yes

• No

Which two organelles are only found in plant cells?

• cytoplasm and vacuoles

• cell wall and chloroplast

• cell membrane and nucleus

Tags

NGSS.MS-LS1-6

Which is a main difference in plant and animal cells?

• plant cells have a cell wall and animal cells do not

• plant cells have a cell membrane and animal cells do not

• plant cells do not have a nucleus but animals cells do

Tags

NGSS.MS-LS4-2

Jordan observed a cell that only has cytoplasm, nucleus, cell membrane, and vacuole. What type of cell is it?

• plant

• animal

Tags

NGSS.MS-LS1-2

Matt went to the doctor and the nurse used a swab on his throat to collect a sample. Why did the nurse do that?

• to see if he had eaten food that made him sick

• to place medicine on his throat to make it feel better

• to see if harmful bacteria was growing in his throat

A scientist wiped a water fountain with a cotton swab and then wiped the swab on a petri dish. After a week when he checked the petri dish, he used a mask, gloves, and goggles. Why was he careful about handling the dish?

• He did not want to break the petri dish

• The microorganisms growing in the dish might die if he touches it

• The microorganisms growing in the dish might make him sick if he is exposed to it.

An example of beneficial microorganisms is _____________.

• Bacteria used to make yogurt

• Bacteria eating oil from an oil spill

• Bacteria in our gut to help us digest food

• All of the choices are correct

Tags

NGSS.MS-LS2-3