What are the structures?

• Atoms

• Cells

• Electrons

• Chloroplasts

Tags

NGSS.MS-LS1-1

NGSS.MS-LS1-2

NGSS.MS-LS1-3

Which of the following structures are found in the plant cell but NOT in the animal cell?

• Chloroplasts

• Cell Membrane

• Ribosomes

• Endoplasmic Reticulum

Tags

NGSS.MS-LS4-2

Examine the pictures of the plant and animal cells. Which of these statements is true about plant and animal cells?

• Animal cells contain mostly sugar, and plant cells contain mostly water

• Plant cells are usually shaped like boxes with flat sides, but animal cells can have many different shapes

• Plant cells are usually much smaller than animal cells because plants have more cells than animals

• Animal cells are surrounded only by cell membranes, and plant cells are surrounded only by cell walls

Tags

NGSS.MS-LS1-1

NGSS.MS-LS1-2

What tool can be used to see an amoeba?

• Hammer

• Pencil

• Microscope

• Sunglasses

A student is required to record observations of as many structures as possible in a plant leaf. The student first observes the leaf with only her eyes and then with a microscope.The student claims that a microscope is better to observe the cells in the leaf. Which evidence would best support the student's claim?

• The cells of the leaf are too dark to be seen without the special lighting a microscope provides.

• The cells of the leaf are too small to be seen without the magnification a microscope provides.

• The cells of the leaf are too close together to be seen without using a microscope.

• The cells of the leaf are too far away to be seen without using a microscope.

Tags

NGSS.MS-LS1-1

NGSS.MS-LS1-2

Which statement is part of the cell theory?

• All cells have a nucleus

• Cells are the basic unit of life

• Cells can only be seen with a microscope

• All cells are identical

Answer explanation

The correct statement is 'Cells are the basic unit of life,' which is a fundamental principle of cell theory. The other options are incorrect as not all cells have a nucleus, can be seen with the naked eye, and are not identical.

Tags

NGSS.MS-LS1-1

Which students explain why the shape and structure of the two cells are different?

• A.Cell X is shaped like a circle because it is an animal cell, which means it does not have a cell wall, and cell Y is shaped like a rectangle because it is a plant cell, which means it has a cell wall.

• A.Cell X is shaped like a circle because it is a plant cell, which means it does not have a cell wall, and cell Y is shaped like a rectangle because it is an animal cell, which means it has a cell wall.

• A.Cell X is shaped like a circle because it is an animal cell, which means it has a cell membrane, and cell Y is shaped like a rectangle because it is a plant cell, which means it does not have a cell membrane.

• A.Cell X is shaped like a circle because it is a plant cell, which means it has a cell membrane, and cell Y is shaped like a rectangle because it is an animal cell, which means it does not have a cell membrane.

Tags

NGSS.MS-LS1-2

Which describes how the difference between a plant cell and animal cell can be determined by looking at the parts inside the cell?

• A.Plant cells have a nucleus, but animal cells do not.

• Plant cells have chloroplasts, but animal cells do not

• A.Plant cells do not have a nucleus, but animal cells do.

• A.Plant cells do not have chloroplasts, but animal cells do.

Tags

NGSS.MS-LS1-2

Students identified the nucleus in an animal and plant cell. How is the function of the nucleus the same in both kinds of cells?

• It protects the parts of the cell

• It gives the cell a rigid structure

• It controls the activities of the cell

• It regulates what enters and exits the cell

Tags

NGSS.MS-LS1-2

One characteristic of all living things is that they are made of units. What are these units called?

• Tissues

• Cells

• Organs

• Body Segments

Tags

NGSS.MS-LS1-1