Unit 6 Test Review

The smallest unit of life is called a ___________________

• Tissue

• Organ

• Atom

• Cell

Tags

NGSS.MS-LS1-1

NGSS.MS-LS1-2

Which of the following is NOT a component of the cell theory?

• Cells are the basic units of structure and function in living organisms

• Cells can only be derived from preexisting cells

• All living organisms are made up of cells

• Viruses are living organisms because they contain DNA

Which scientist contributed to the known structure of DNA by producing x-ray images of it?

• Chargaff

• Franklin

• Watson

• Crick

Who was the first person to observe organisms in pond water using a single-lens microscope?

• Anton von Leeuwenhoek

• Matthias Schleiden

• Rudolf Virchow

• Charles Darwin

Which of these does not match a scientist correctly with their contribution to cell research

• Schleiden: All plants are made of cells

• Schwann: All animals are made of cells

• Virchow: Cells can only come from preexisting cells

• Hooke: First invented the microscope

Bacteria can be beneficial to humans in many ways, but which of is not helpful

• Supporting digestion

• Causing food to spoil

• Elimination of ocean contaminants

• Producing medicine

Which of the following organelles do we NOT find in plant cells

• Chloroplasts

• Central Vacuole

• Flagella

• A cell wall

Which of the following statements is incorrect?

• All eukaryotic cells have a nucleus

• Prokaryotic cells do not have membrane bound organelles

• Animal cells have a large central vacuole

• Plants cells have a cell wall

Tags

NGSS.MS-LS1-1

What is a major difference between prokaryotic and eukaryotic cells?

• some animals cells have a cell wall

• prokaryotes do not have membrane bound organelles

• prokaryotes cannot have a cell wall

• prokaryotes do not have DNA

A gorilla has 40 chromosomes. How many chromosomes will each daughter cell have after the cell undergoes a mitotic division?

• 20

• 46

• 40

• 80