LE Unit 3 Practice Questions

What is the function of the cell membrane?

• To control what enters and leaves the cell

• To provide energy to the cell

• To store the cell's DNA

• To make proteins

Tags

NGSS.MS-LS1-2

What organelle is known as the powerhouse of the cell?

• Ribosome

• Golgi apparatus

• Mitochondria

• Nucleus

Tags

NGSS.MS-LS1-2

Where does photosynthesis occur in plant cells?

• Mitochondria

• Chloroplast

• Nucleus

• Endoplasmic reticulum

Tags

NGSS.MS-LS1-6

What is the main component of the cell wall in plants?

• Protein

• Chitin

• Cellulose

• Phospholipids

Which of the following is NOT found in animal cells?

• Mitochondria

• Cell wall

• Cell membrane

• Ribosomes

Diffusion moves substances from an area of ______ concentration to an area of ______ concentration.

• Low; high

• High; low

• Equal; equal

• None of the above

Osmosis is the diffusion of ______ across a selectively permeable membrane.

Tags

NGSS.MS-ESS2-4

A solution that has a higher concentration of solutes outside the cell than inside the cell is called:

• Hypotonic

• Hypertonic

• Isotonic

• Hydrotropic

What happens to an animal cell placed in a hypertonic solution?

• It swells

• It shrinks

• It divides

• It remains the same

Which process does NOT require energy?

• Active transport

• Facilitated diffusion

• Endocytosis

• Osmosis