Which of the following is true about viruses?

• A) They are living organisms

• B) They have a metabolism

• C) They require a living host to replicate

• D) They are made of cells.

Viruses have a nucleic acid core, which can be either DNA or ______.

• Protein

• Lipid

• RNA

• Carbohydrate

Viruses can only reproduce with the help of a ​ (a)   cell. This is another reason that viruses are not considered ​ (b)   things.

• host
• living
• dead

Which of the following is a key difference between the structure of viruses and cells?

• A) Viruses have a cell wall, cells do not.

• B) Eukaryotic cells have a nucleus, viruses do not.

• C) Viruses have mitochondria, cells do not.

• D) Cells have ribosomes, viruses do not.

Viruses spread and cause disease by attaching to a host cell and injecting their (a)  

• genetic material
• proteins
• lipids
• enzymes

Tags

NGSS.MS-LS3-1

Elijah is studying different types of cells in his biology class. Which of the following is a characteristic of prokaryotic cells?

• Has a nuclear membrane

• Has membrane-bound organelles

• Single, circular chromosome

• More complex and larger in size.

In eukaryotic cells, the chromosomes are enclosed within a _______.

• Cytoplasm

• Nuclear membrane

• Cell wall

• Plasma membrane

Tags

NGSS.MS-LS1-1

NGSS.MS-LS1-2

Eukaryotic cells are more complex than prokaryotic cells because they have a (a)   .

• A) cell wall
• B) nucleus
• C) ribosome
• D) flagella

Sort the following statements based on if the statement is talking about prokaryotes or eukaryotes

b

c

d

e

a

Ribosomes are found in the cell

more complex structures

Only made of unicellular organisms

DNA is found in the nucleus

DNA is free floating

What is the primary function of ribosomes in a cell?

• To generate energy

• To synthesize proteins

• To transport molecules

• To store genetic information

Tags

NGSS.MS-LS1-2