Middle school Cell Assessment

What is the basic unit of life common to bacteria, humans, and all other living organisms?

• cells

• organs

• chloroplasts

• carbohydrates

Tags

NGSS.MS-LS1-1

NGSS.MS-LS1-2

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

• a. all organisms are made up of cells

• b. cells come from pre-existing cells

• c. groups of cells join together to form tissues

• d. cells are the basic unit of life

Tags

NGSS.MS-LS1-1

Some organelles are found in plant cells, but not in animal cells. Which of the following organelles would likely be found in the cells of plants, but NOT animals? (6.L.14.4)

• nucleus

• chloroplast

• vacuole

• mitochondria

Which organelle is represented by the blank in the diagram below?

• vacuole

• cytoplasm

• cell membrane

• mitochondria

Tags

NGSS.MS-LS1-2

Plant cells and animal cells have many similarities. Which of the following structures, found in both plant cells and animal cells, directs the activities of the cell?

• vacuole

• cytoplasm

• nucleus

• mitochondria

Tags

NGSS.MS-LS1-2

An amusement park is similar to a cell. Both are made up of many important parts that work together as a whole. Which part of the cell has a similar function to the ticket gate in an amusement park?

• vacuole

• cell membrane

• nucleus

• mitochondria

Tags

NGSS.MS-LS1-2

New evidence can cause scientists to revise a scientific theory. If new evidence comes to light, which is most likely to happen?

• The theory will be discarded immediately.

• The new evidence will be ignored.

• The theory will be revised immediately.

• After years of research, if the evidence still supports a change, the theory will be revised.

Which of the following best describes the role of scientific instruments in the development of Cell Theory? (6.L.14.2)

• The hand lens showed scientists that plants were made up of cells.

• The microscope showed that cells of plants and animals have different structures.

• The microscope enabled scientists to discover single-celled organisms.

• The telescope enabled scientists to see objects they could not view before.

Before the Cell Theory, spontaneous generation was a widely accepted idea. Spontaneous generation was the idea that living things could be produced by non-living things. Which part of the Cell Theory best disagrees with spontaneous generation?

• All living things are made of cells.

• Cells can form from decaying matter.

• Cells are the basic unit of structure and function in organisms.

• Cells come from pre-existing cells.

Many species of lizards can regenerate lost body parts, such as tails, after an injury. Which principle of Cell Theory best explains this ability to regrow a tail? (6.L.14.2)

• Lizards consume nutrients that help in tail regeneration.

• Lizards use energy from the Sun to grow a tail.

• Lizards are made of atoms which produce new atoms to grow a tail.

• Lizards are made of cells which produce new cells to grow a tail.