Eoc Unit Biology

A scientist performs an experiment to see if acids have an effect on the health of a particular type of plant. Three sets of plants were treated with acidic solutions of known pH while the control set was treated with a solution of neutral pH 
Which is the best conclusion for this experiment? 

• Acid has no effect on the health of this type of plant
•  High acidity is helpful to this type of plant.
• Low acidity is harmful to this type of plant.
• High acidity is harmful to this type of plant.

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if a company claims its product has been proven scientifically, which of the following should've taken place for the results to be considered reliable.

• The company should've held discussions with the leading industrial scientists
• Technology should've been used in both the gathering of of data and data analysis
• Results should've been peer-reviewed and repeated 
• The results of the experiment should've been published in popular magazines

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Based on your knowledge of scientific investigations, which stage of scientific investigation did the invention of  the microscope significantly advance.

• communicating the results of an experiment
• gathering the data for an investigation
• generating explanations of phenomena
• plan in the investigation and experimentation

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Which of the following best compares the structures of lipids and carbohydrates?

• both are made of monosaccharide monomers but lipids are hydrophobic and carbohydrates are hydrophilic
• both consist of carbon hydrogen and oxygen, but carbohydrates have repeating structural units and lipids do not
• both contain carbon and hydrogen, but carbohydrates also contain oxygen while lipids contain nitrogen
• both have a carbon backbone, but lipids have an amino group and carbohydrates have a carboxylic acid group

Which of the following best describes the differences in function between enzymes and nucleic acids?

• nucleic acids are the building blocks of proteins while enzymes are used as the building blocks of phospholipids
• nucleic acids contain the genetic code for protein synthesis, while enzymes catalyze chemical reactions
• nucleic acids inhibit chemical reactions, while enzymes provide structural support in cells
• nucleic acids transmit signals that begin biochemical reactions, while enzymes convert carbohydrates to lipids and proteins

 Which of the following characteristics defines a cell as eukaryotic?

• Being able to move
• Being able to reproduce
• Having a nucleus
• Having ribosomes

Which statement correctly compares a eukaryote and a prokaryote?

• eukaryotes have a cell wall while prokaryotes have a cell membrane
• eukaryotes have membrane-bound organelles are prokaryotes have few  specialized structures
• eukaryotes use active transport to move substances across a cell  membrane, while prokaryotes use facilitated diffusion
• eukaryotes use flagella to move themselves through substances, while prokaryotes can't move at all

The diagram below represents a cell of a green plant. 
Solar energy is used to produce energy-rich compounds in which structure?

• A
• B
• C
• D

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The diagram below represents a cell
Which organelle is the site where amino acids are synthesized into proteins? 

• 1
• 2
• 3
• 4

A person with swollen gums rinses his mouth with warm salt water, and the swelling decreases. Which of the following has occurred?

• The swollen gums have absorbed the saltwater solution.
• The saltwater solution lowers the temperature of the water in the gums.
• The salt in the solution has moved against the concentration gradient.
• The water in the gums has moved out due to the high concentration of salt in the solution. 

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