A&P LAB EXAM #1 QUESTIONS WITH
CORRECT ANSWERS
Which objective should be in place when the microscope is put away? - ANSWER-
Lower power
If threads are layered from top to bottom brown, green, red, which layer will come into
focus first if you are using the microscope properly? - ANSWER-Brown
Which type of microscope should be used to view a virus that is 50 nm in size? -
ANSWER-Compound light microscope because that has the highest microscope
If organisms are swimming to the left, which way should you move your slide to keep
them in view? - ANSWER-Move slide to the right
If you use the coarse-adjustment knob to focus on an object with the high-power
objective, what problems will you encounter? - ANSWER-It will not focus because
coarse is for approximate adjustment and focus
What kind of reaction adds water to break large bionmolecules into subunits? -
ANSWER-Hydrolysis
What kind of protein is lactase, the biomolecule that speeds up the breakdown of
lactose? - ANSWER-Enzymes
What kind of bond forms during a dehydration synthesis reaction involving two amino
acids? - ANSWER-Dipeptide
If maltose undergoes hydrolysis, what subunits result? - ANSWER-Two sugar
molecules
As what molecule do plants store glucose? - ANSWER-Starch
If starch is present, what color will the iodine turn? - ANSWER-blue /black
If a solution contains a large amount of glucose, what color will the Benedict's reagent
become? - ANSWER-Yellow
What kinds of biomolecules are insoluble in water but soluble in alcohol or ether? -
ANSWER-Lipids/oils
If two fatty acids, glycerol, and a phosphate group undergo a dehydration reaction, what
biomolecule forms? - ANSWER-Phosphlipids
, What is the name used for plant fats? - ANSWER-Oils
What must be present to successfully break down fats during digestion? - ANSWER-
Blue/Emulsifier
If you test an unknown substance with the biuret reagent and it turns purple, what is
present? - ANSWER-Protein
If you test a sample of potato with the biuret reagent, what do you expect the results to
be? - ANSWER-Dark
If you want to test a sample to see if glucose is present, what reagent should you use? -
ANSWER-Benedicts
What is the function of rough endoplasmic reticulum? - ANSWER-Process proteins
Which organelle carries on intracellular digestion? - ANSWER-Lysomes
What is the function of the nucleus? - ANSWER-Housing cromatin and DNA
Which organelle is responsible for protein synthesis? - ANSWER-Ribosome
What regulates the movement of molecules into and out of the cell? - ANSWER-Cell
membrane
What term is used to describe the movement of molecules from an area of higher
concentration to an area of lower concentration? - ANSWER-Diffusion
Which types of molecules can pass through the plasma membrane? - ANSWER-Small
molecule
What is the term for the movement of water across a selectively permeable membrane?
- ANSWER-Osmosis
Is 10% NaCI isotonic, hypertonic, or hypotonic to red blood cells? - ANSWER-
Hypertonic
What appearance will red blood cells have when they are placed in 0.0009% NaCl? -
ANSWER-Hypotonic
In which direction does water move when cells are placed in a hypertonic solution? -
ANSWER-Out of cell
The active site of an enzyme brings together the_____________ of a reaction. -
ANSWER-Substrate
CORRECT ANSWERS
Which objective should be in place when the microscope is put away? - ANSWER-
Lower power
If threads are layered from top to bottom brown, green, red, which layer will come into
focus first if you are using the microscope properly? - ANSWER-Brown
Which type of microscope should be used to view a virus that is 50 nm in size? -
ANSWER-Compound light microscope because that has the highest microscope
If organisms are swimming to the left, which way should you move your slide to keep
them in view? - ANSWER-Move slide to the right
If you use the coarse-adjustment knob to focus on an object with the high-power
objective, what problems will you encounter? - ANSWER-It will not focus because
coarse is for approximate adjustment and focus
What kind of reaction adds water to break large bionmolecules into subunits? -
ANSWER-Hydrolysis
What kind of protein is lactase, the biomolecule that speeds up the breakdown of
lactose? - ANSWER-Enzymes
What kind of bond forms during a dehydration synthesis reaction involving two amino
acids? - ANSWER-Dipeptide
If maltose undergoes hydrolysis, what subunits result? - ANSWER-Two sugar
molecules
As what molecule do plants store glucose? - ANSWER-Starch
If starch is present, what color will the iodine turn? - ANSWER-blue /black
If a solution contains a large amount of glucose, what color will the Benedict's reagent
become? - ANSWER-Yellow
What kinds of biomolecules are insoluble in water but soluble in alcohol or ether? -
ANSWER-Lipids/oils
If two fatty acids, glycerol, and a phosphate group undergo a dehydration reaction, what
biomolecule forms? - ANSWER-Phosphlipids
, What is the name used for plant fats? - ANSWER-Oils
What must be present to successfully break down fats during digestion? - ANSWER-
Blue/Emulsifier
If you test an unknown substance with the biuret reagent and it turns purple, what is
present? - ANSWER-Protein
If you test a sample of potato with the biuret reagent, what do you expect the results to
be? - ANSWER-Dark
If you want to test a sample to see if glucose is present, what reagent should you use? -
ANSWER-Benedicts
What is the function of rough endoplasmic reticulum? - ANSWER-Process proteins
Which organelle carries on intracellular digestion? - ANSWER-Lysomes
What is the function of the nucleus? - ANSWER-Housing cromatin and DNA
Which organelle is responsible for protein synthesis? - ANSWER-Ribosome
What regulates the movement of molecules into and out of the cell? - ANSWER-Cell
membrane
What term is used to describe the movement of molecules from an area of higher
concentration to an area of lower concentration? - ANSWER-Diffusion
Which types of molecules can pass through the plasma membrane? - ANSWER-Small
molecule
What is the term for the movement of water across a selectively permeable membrane?
- ANSWER-Osmosis
Is 10% NaCI isotonic, hypertonic, or hypotonic to red blood cells? - ANSWER-
Hypertonic
What appearance will red blood cells have when they are placed in 0.0009% NaCl? -
ANSWER-Hypotonic
In which direction does water move when cells are placed in a hypertonic solution? -
ANSWER-Out of cell
The active site of an enzyme brings together the_____________ of a reaction. -
ANSWER-Substrate
