Cells/ C.O.L. Practice

What additional information would BEST support an argument that Specimen A is living and Specimen B is not living?

• 
  Specimen A can move and Specimen B cannot move.

• 
  Specimen A has cells and Specimen B does not have cells.

• Specimen A needs oxygen Specimen B does not need oxygen.

• Specimen A has many parts and Specimen B does not have many parts.

Tags

NGSS.MS-LS1-1

Use the scenario to answer the following question

A student went to the park and found a round object laying on the ground. When the student got closer, they noticed the object was breathing. They reached out to touch it, and it rolled away from them. They finally caught the object and took the object home to observe it closer. One week later, the student noticed that the organism had increased in size and was able to make sounds to communicate with them.

Which one of the following statements provides valid evidence that the object the student found can be considered a living thing?

• The organism can move and therefore would be considered a living thing.

• The organism can breathe and therefore would be considered a living thing.

• 
  The organism can respond to stimulus and therefore would be considered a living thing.

• The organism can make sound and communicate and therefore it is considered a living thing.

Use the information to answer the following question.

A student has a robotic vacuum cleaner at his house. It turns on at the push of a button. It changes direction when it senses it is getting near a wall and changes its power level when it goes from carpet to hardwood floor. It is able to learn the location of stairs and drop-offs in the house so it does not fall down. The robot vacuum even returns to its charging station when its energy level is low to recharge.

Which of the following statements correctly proves the vacuum as living or nonliving?

• The robot vacuum is alive because it moves and obtains new information.

• The robot vacuum is alive because it responds to stimuli and uses energy.

• The robot vacuum is not alive because it is not made of cells and cannot reproduce.

• The robot vacuum is not alive because it does not grow and develop and does not require oxygen.

Use the information to answer the following question.

A team of scientists thinks they discovered a new organism while exploring Brazil. Upon bringing the specimen back to their lab in Atlanta, they observe the specimen for several weeks. They take a sample from the specimen to observe it under a microscope and see the sample is composed of many small compartments containing what appears to be nuclei. They shine a bright light on only one side of the specimen and observe it slowly turn itself towards the light over multiple days.

What additional evidence would support that the newly discovered specimen is alive?

• The specimen appears to be breathing.

• The specimen observed under the microscope contains various organelles.

• 
  The specimen sinks to the bottom of the container when placed in pure water.

• The specimen grows in size and develops colorful blooms over the several weeks in which it is being observed.

Tags

NGSS.MS-LS1-1

NGSS.MS-LS1-2

NGSS.MS-LS1-5

A scientist is examining slides of different types of cells. What two features would the scientist use to distinguish a plant cell from an animal cell?

• 
  presence or absence of a cell membrane and cytoplasm

• presence or absence of a nucleus and cell membrane

• 
  presence or absence of mitochondria and lysosomes

• presence or absence of a cell wall and chloroplasts

Tags

NGSS.MS-LS1-6

Four 7th-grade science students are presenting evidence for characteristics of life. Which student presents the BEST argument for growth and development?

• Student 1 said that all living things grow and develop because they all increase in size, they all increase in the number of cells they have, and they all mature and become specialized.

• 
  Student 2 said that all living things grow and develop because they all increase in size, they all mature and become specialized, but they all do not increase in the number of cells they have.

• Student 3 said that all living things grow and develop because some of them increase in size, some of them mature and become specialized, and some of them increase in the number of cells they have.

• 
  Student 4 said that all living things grow and develop because they all increase in size, they all mature and become specialized, and they all keep decreasing in the number of cells they have.

Tags

NGSS.MS-LS1-5

Animal cells have organelles that have specific structures and functions. Healthy animal cells are able to carry out all the necessary processes of life. Which of the following best explains why an animal cell would not be able to reproduce?

• An animal cell would not be able to reproduce if the lysosome was damaged because it is responsible for producing the energy used to perform cell division.

• An animal cell would not be able to reproduce if the nucleus was damaged because it is responsible for housing the genetic information needed for cell division.

• An animal cell would not be able to reproduce if the cell wall was damaged because it is responsible for letting the materials into the cell that are needed for cell division.

• An animal cell would not be able to reproduce if the cytoplasm is damaged because it is responsible for converting sugar into nutrients that are needed to perform cell division.

Tags

NGSS.MS-LS1-2

Use the information and models to answer the following question.

A student created the following models comparing plant and animal cells.

What improvements should the student make to their models?

• They need to remove the chloroplasts from Model A because the cell does not need the organelles to convert materials into nutrients using sunlight.

• They need to remove the nucleus from both models because the cells do not need the organelle to control and regulate processes within the cell.

• They need to add mitochondria to both models because the cells both require energy production.

• They need to add a cell wall to Model B because the cell needs structure and support.

Tags

NGSS.MS-LS1-2

Use the scenario to answer the following question.

On a train, the conductor controls the speed of the train and decides when and where it stops. The train doors allow passengers and materials to get in and out of the train. The dining car makes food for the passengers. The luggage car stores luggage, freight, and other materials. The locomotive engine provides power for the train to run.

The conductor could be compared to which organelle in the cell?

• chloroplast

• lysosome

• mitochondria

• nucleus

Tags

NGSS.MS-LS1-3

Use the information and diagram to answer the following question.

A student is using a microscope to observe samples taken from an unknown organism. Refer to the image to answer the following question.

What could the student BEST conclude about the image under the microscope?

• The sample shown is composed of animal cells due to the visible cell wall surrounding the cells.

• The sample shown is composed of plant cells due to the visible cell wall surrounding the cells.

• The sample shown is composed of animal cells due to the visible chloroplasts in the cytoplasm.

• The sample shown is composed of plant cells due to the visible chloroplasts in the cytoplasm.

Tags

NGSS.MS-LS4-2