Unit 1- Investigating Cells Review

Which of the following statements about organelles is NOT true?

• Each organelle carries out only one role in the life functions of the cell.

• There are some organelles found in plant cells that are not in animal cells.

• Each organelle carries out functions similar to the way organs function in a large organism.

• There are organelles in plant and animal cells that work directly with other organelles.

Tags

NGSS.MS-LS1-2

Which statement represents a correct organizational relationship in living things?

• Organs make up cells and cells make up atoms.

• Atoms make up tissues and tissues make up cells.

• Cells make up organs and organs make up tissues.

• Cells make up tissues and tissues make up organs.

Tags

NGSS.MS-LS1-1

NGSS.MS-LS1-3

A school is conducting a survey to find out what students think of its new lunch menu. Teachers pick 100 out of the 900 students to participate in the survey. The survey asks students to rate the new meals on a scale of 1 to 5, with 5 being the best and 1 being the worst. What is an advantage of this research method?

• The survey can be conducted without a hypothesis.

• The teachers have complete control over all variables in the study.

• The results accurately predict what all students will choose to eat.

• This research method studied a majority of the student population.

An organ system is a group of organs that work together to support which of the following?

• ecosystem

• molecule

• organism

• tissue

Tags

NGSS.MS-LS1-3

Which of the following is the characteristic that ALL living organisms have in common?

• All living organisms are made up of cells

• All living organisms are multicellular

• All living organisms can make their own food

• All living organisms have cells with a nucleus

Tags

NGSS.MS-LS1-1

Fran was observing a leaf and a rock with a microscope. Which part of the cell theory might she be investigating?

• organisms are made up of cells

• cells come from pre-existing cells

• groups of cells join together to form tissues

• molecules are atoms bonded together

Tags

NGSS.MS-LS1-1

The table shows three explanations that are widely accepted by many scientists. Which of the following statements identify the explanations and correctly explain why they are widely accepted?

• All are laws because scientists agree on their status as laws.

• All are theories because scientists gathered data to support them.

• All are laws because they are accepted by scientists who applied the scientific method.

Tags

NGSS.MS-LS1-1

NGSS.MS-LS1-2

Space probes have searched for life in other parts of our universe. Assume that a space probe detects a strange-looking structure existing deep in space. According to the cell theory, what must be true of the structure to be considered a living thing?

• The structure must use oxygen.

• The structure must change shape.

• The structure must be able to move.

• The structure must be made of one or more cells.

Tags

NGSS.MS-LS1-1

Which statement is an example of a scientific theory?

• Living things are made of cells.

• There may be more droughts this year.

• It is easier to dissolve some spices in milk than in water.

• Oil deposits can be found under oceans as well as under land.

Many cellular processes are performed by cells. A typical cell and a common process is shown in the diagram below. Which of the following is the best reason this cell is going through the process shown?

• To reproduce another cell

• To compete with another cell

• To maintain homeostasis of the cell

• To provide protection for the cell from the environment

Tags

NGSS.MS-LS1-2