2nd Six Weeks Exam Review

What is a key difference between prokaryotic and eukaryotic cells?

• Prokaryotic cells have a nucleus.

• Prokaryotic cells lack membrane-bound organelles.

• Eukaryotic cells are smaller.

• Prokaryotic cells have a complex cytoskeleton.

Which of the following is a unique feature of eukaryotic cells that distinguishes them from prokaryotic cells?

• Cell walls

• Ribosomes

• Membrane-bound nucleus

• Plasmids

Prokaryotic cells lack a membrane-bound ________, a distinguishing feature of eukaryotic cells.

In eukaryotic cells, the genetic material is found within (a)   , while in prokaryotic cells, it is free-floating in the (b)   .

• ribosome

• mitochondria

• nucleus
• cytoplasm

Tags

NGSS.MS-LS1-1

NGSS.MS-LS1-2

Which biomolecules are most commonly found in the structure of the cell membrane?

• Proteins and nucleic acids

• Lipids and carbohydrates

• Carbohydrates and nucleic acids

• Lipids and proteins

Match each type of biomolecule with its

function in the cell membrane:

• Used by the immune system for self-ident

• Carbohydrate

• 
  Provides structural support

• Protein

• 
  Helps transport substances

• Lipid

The type of cellular transport that requires energy in the form of ATP is:

Match the following:

• Against concentration, needs ATP

• Active Transport

• Transport of Water across membrane

• Facilitated Diffusion

• With concentration, no ATP needed

• Osmosis

• Passive transport with protein help

• Passive Transport

What distinguishes viruses from living cells?

• Viruses have a nucleus, while cells do not.

• Viruses can carry out metabolism, while cells cannot.

• Viruses lack cellular structure, metabolic processes, and need a host to replicate.

• Viruses have a cell wall, while cells do not.

Which of the following is NOT a characteristic of viruses?

• They can replicate independently.

• They lack cellular structure.

• They require a host cell to replicate.

• They can cause diseases in living organisms.

Answer explanation

Viruses cannot replicate independently; they require a host cell to replicate and reproduce.