Cell Structure

What will most likely be the result if all of the mitochondria are removed from a plant cell?  

•  It will be unable to carry out respiration
• It will lose water through osmosis. 
• It will break down the ribosomes in the cell
•  It will be unable to photosynthesize. 

Before mitosis begins, which happens before the nucleus starts dividing?.

•  The cytoplasm separates. 
• The DNA replicates
• The sister chromatids separate. 
• The homologous chromosomes cross over. 

A freshwater plant is placed in a container of saltwater. What will most likely happen to the cells of the plant? 

• They will swell because water will move into them. 
• They will swell because salt will move into them. 
• They will shrink because water will move out of them
• They will shrink because salt will move out of them.

This diagram shows a plant cell. Which structure is found in a plant cell but is absent in an animal cell? 

• 1
• 2
• 3
• 4

Tags

NGSS.MS-LS1-2

Which type of molecule do whales use for energy storage and insulation? 

• DNA
• glucose
• fat
• starch

Which most directly controls the rate at which food is broken down to release energy? 

• enzymes
• hormones
• nucleic acids
• vitamins

What are the subunits of DNA and their function?    

• nucleotides that store information
• monosaccharides that provide quick energy for the cell
• lipids that store energy and provide insulation
• proteins that provide the building blocks for the structural components of organisms