Chapter 7 Cell Structure and Function

Cells are the basic unit of structure and function of ____ living things.

• all
• some
• most
• none

Tags

NGSS.MS-LS1-1

NGSS.MS-LS1-2

Bacterial cells have no ___________ or membrane bound organelles.

• cells
• eukaryotes
• nucleus
• organelles

Which beaker below shows cells in a hypotonic solution?

• A
• B
• C

Active transport...

• moves substances from low to high concentration and uses energy
• doesn't use energy
• is a type of diffusion

A scientist at the polar ice cap found some cells frozen in ice from many years ago. The cell has... - cytoskeleton - mitochondrion - nucleus - cell wall - ribosomes. This cell is probably a(n) _____ cell.

• animal
• plant

Tags

NGSS.MS-LS1-1

NGSS.MS-LS1-2

Plant cells:

• do not contain mitochondria
• have a cell wall but no cell membrane
• have chloroplasts and a cell wall

Tags

NGSS.MS-LS1-2

The organelles in plant cells that contain a green pigment are the:

• mitochondria
• vacuole
• chloroplast

Tags

NGSS.MS-LS1-2

NGSS.MS-LS1-6

Which of the following pairs is NOT related?

• eukaryote - animals
• ribosomes - proteins
• cell wall - animal
• mitochondria - energy

Which of these statements best explains how the cell membrane helps maintain homeostasis?

• It is both hydrophillic and hydrophobic.
• It is a fluid mosaic.
• It is selectively permeable.
• It is found in both plant and animal cells.

Tags

NGSS.HS-LS1-3

The diagram below shows the relative concentration of molecules inside and outside of a cell. Which statement best describes the general direction of diffusion across the membrane of the cell?

• Glucose would diffuse into this cell
• Protein would diffuse out of the cell
• Carbon dioxide would diffuse out of the cell
• Oxygen would diffuse into the cell