UCoL - Cell Types and Viruses

What type of cell has a nucleus?

• eukaryotic

• prokaryotic

• neither

• both

Answer explanation

Eukaryotic cells have a nucleus, which contains their genetic material. In contrast, prokaryotic cells lack a nucleus, as their DNA is not enclosed within a membrane. Therefore, the correct answer is eukaryotic.

Plants and animal cells are examples of ___ cells

• prokaryotic cells

• eukaryotic cells

• both eukaryotic and prokaryotic

• neither

Answer explanation

Plants and animal cells are examples of eukaryotic cells because they have a defined nucleus and organelles, distinguishing them from prokaryotic cells, which lack these features.

Tags

NGSS.MS-LS1-1

Which do BOTH prokaryotes and eukaryotes contain?

• nucleus

• mitochondria

• ribosomes

• cell wall

Answer explanation

Both prokaryotes and eukaryotes contain ribosomes, which are essential for protein synthesis. In contrast, prokaryotes lack a nucleus and mitochondria, and not all eukaryotes have a cell wall.

Which cell type tends to be smaller?

• Prokaryote

• Eukaryote

• there is not a size difference

Answer explanation

Prokaryotes are generally smaller than eukaryotes. Prokaryotic cells typically range from 0.1 to 5.0 micrometers, while eukaryotic cells are usually 10 to 100 micrometers in size, making prokaryotes the smaller cell type.

Which types of cells are Eukaryote. Check all that apply.

• 
• 
• 
• 

Tags

NGSS.MS-LS1-1

NGSS.MS-LS1-2

Viruses are considered not living because?

• They are not made of cells

• They do not have DNA

• They do not use ribosomes

Answer explanation

Viruses are considered not living because they are not made of cells. Unlike living organisms, which are cellular, viruses lack cellular structure and cannot carry out metabolic processes independently.

Tags

NGSS.MS-LS1-1

What does a VIRUS need to replicate?

• Host Cell

• Pathogen

• Computer

Answer explanation

A virus needs a host cell to replicate because it cannot reproduce on its own. It hijacks the cellular machinery of the host to make copies of itself, which is why 'Host Cell' is the correct answer.

Which statement best describes how a virus replicates?

• A virus divides into two identical virus particles before infecting the host cell.

• A virus enters a host cell and uses the materials from the host cell to make new virus particles.

• Multiple virus particles join together and form a large particle that breaks apart, releasing new virus particles.

• Multiple virus particles break down into parts, which then put themselves back together into new copies of the virus.

Answer explanation

A virus replicates by entering a host cell and utilizing the cell's materials to produce new virus particles, making the second choice the correct description of the replication process.

What Type of Cell is it?

• Plant Cell

• 
• Bacteria

• 
• Fungi

• 
• Animal Cell

• 

Tags

NGSS.MS-LS1-1

NGSS.MS-LS1-2

How confident are you in your understanding of cell types and viruses?

• Not confident

• Confident

• Super confident

Tags

NGSS.HS-LS1-4