KS practice #7 of 14 Cell Transport and Organelles

Which activity would a cell be unable to perform if a mutation occurred that caused the Golgi apparatus to stop functioning?

• packaging proteins for transport out of the cell

• processing mRNA as it is transcribed from DNA strands

• providing the location for the delivery of amino acids by tRNA

• producing a template to guide the sequencing of amino acid chains

The diagram shows the movement of ions against a concentration gradient to an area of higher concentration. Which molecule provides the energy needed for this movement to occur in a cell?

• ATP

• mRNA

• protein

• lipid

Tags

NGSS.HS-LS2-3

Which component of this membrane contains a hydrophobic region and acts as the primary barrier to most foreign substances?

• protein

• cholesterol

• carbohydrate chain

• phospholipid bilayer

The relative concentration of solute inside and outside a cell can cause water molecules to move across the membrane. Which phrase would be an alternate title to the diagram?

• Exocytosis in a Cell

• Active Transport in a Cell

• Osmosis Across a Membrane

• Facilitated Diffusion Across a Membrane

A researcher noticed that a similar CH₂ molecular structure was also located in the plasma membrane of an animal cell. This CH₂ molecular structure contained a negatively charged phosphate group. Which statement best describes the primary function of the CH2 and phosphate molecular structure located in the plasma membrane?

• It contains the genetic information needed for protein production.

• It catalyzes specific chemical reactions in the cytoplasm of a cell.

• It stores the energy that a cell needs to perform various life processes.

• It allows a cell to regulate the movement of materials into and out of a cell.

Which type of organic molecule was most likely formed by the scientist in the laboratory?

• lipid

• protein

• nucleic acid

• carbohydrate

The functions of which cell structure are described in this list?

• a lysosome

• a mitochondrion

• the plasma membrane

• the endoplasmic reticulum

Tags

NGSS.MS-LS1-2

The function of which human organ is most like the cell walls of bacteria?

• skin

• liver

• heart

• pancreas

Which statement best describes how antibiotics affect cellular homeostasis?

• Antibiotics remove chloroplasts from plant cells to cause starvation.

• Antibiotics interfere with the transport of intracellular and extracellular materials.

• Antibiotics increase the rate of DNA replication in human cells by forming nucleotides.

• Antibiotics decrease the rate of cellular respiration in animal cells by producing oxygen

Tags

NGSS.HS-LS1-3

The indicated protein is part of a cell membrane. What is the most likely purpose of this protein?

• It allows passage of particles into and out of the cell.

• It manufactures phospholipids to repair membrane damage.

• It releases stored chemical energy in membrane carbohydrates.

• It attracts unbalanced electrical charges in the cell’s environment.