Biology lab exam 1 JCJC Questions With Complete
Solutions
1 x 10^-6 L =
a. 1 nL
b. 1 uL
c. 1 cL
d. 1 mL Correct Answers b 1 uL
1 x 10^0 m=
meter
millimeter
nanometer
none of these Correct Answers meter
6.5 g = 0.0065 Correct Answers kilograms
a concentration difference Correct Answers For diffusion to
occur there must be
a potato strip when placed in a 10% salt solution. After some
time in 10% salt water solution, plant cells will appear ____.
Correct Answers hemolyzed
a slide rest upon this part of the microscope Correct Answers
stage
accuracy Correct Answers refers to how close a measured value
is to the actual true value of the property being studied
,active transport Correct Answers Energy-requiring process that
moves material across a cell membrane against a concentration
difference
all cells are surrounded by a phospholipid bilayer called the
Correct Answers plasma membrane
All cells have what? Correct Answers cell membrane,
ribosomes, cytoplasm, DNA
amino acids are the building blocks for what type of biological
macromolecule? Correct Answers protein
an object appears __ and __ under a microscope, as opposed to
its appearance to the naked eye Correct Answers upside down
inverted
Benedict's reagent Correct Answers detects the presence of
reducing sugars
Biuret test Correct Answers A biochemical test for the presence
of proteins.(violet to black)
Bradford test Correct Answers a biochemical test for the
presence of proteins (brown to blue)
carbohydrates are? Correct Answers sugars
Cell theory states Correct Answers All living things are made
up of cells, cells are the basic units of structure and function in
living things, new cells are produced from existing cells
, cells Correct Answers most basic unit of life
cells from which of the following organisms have a cell wall ?
a.onion
b.human
c.dog
d.giraffe
e.mosquito Correct Answers a. onion
cells of ___ do not contain nuclei Correct Answers prokaryotes
central vacole in plant cells will lost water causing __ when
placed in a hypertonic solution Correct Answers plasmolysis
chloroplast Correct Answers organelle where photosynthesis
takes place
Chromatin Correct Answers Substance found in eukaryotic
chromosomes that consists of DNA tightly coiled around
histones
contrast Correct Answers refers to how well details of a
specimen stand out against the background
controls Correct Answers give a scientist confidence that the
results obtained from a particular experiment are not being
affected by an unknown factors that would lead to false
conclusions and misinterpretations
Solutions
1 x 10^-6 L =
a. 1 nL
b. 1 uL
c. 1 cL
d. 1 mL Correct Answers b 1 uL
1 x 10^0 m=
meter
millimeter
nanometer
none of these Correct Answers meter
6.5 g = 0.0065 Correct Answers kilograms
a concentration difference Correct Answers For diffusion to
occur there must be
a potato strip when placed in a 10% salt solution. After some
time in 10% salt water solution, plant cells will appear ____.
Correct Answers hemolyzed
a slide rest upon this part of the microscope Correct Answers
stage
accuracy Correct Answers refers to how close a measured value
is to the actual true value of the property being studied
,active transport Correct Answers Energy-requiring process that
moves material across a cell membrane against a concentration
difference
all cells are surrounded by a phospholipid bilayer called the
Correct Answers plasma membrane
All cells have what? Correct Answers cell membrane,
ribosomes, cytoplasm, DNA
amino acids are the building blocks for what type of biological
macromolecule? Correct Answers protein
an object appears __ and __ under a microscope, as opposed to
its appearance to the naked eye Correct Answers upside down
inverted
Benedict's reagent Correct Answers detects the presence of
reducing sugars
Biuret test Correct Answers A biochemical test for the presence
of proteins.(violet to black)
Bradford test Correct Answers a biochemical test for the
presence of proteins (brown to blue)
carbohydrates are? Correct Answers sugars
Cell theory states Correct Answers All living things are made
up of cells, cells are the basic units of structure and function in
living things, new cells are produced from existing cells
, cells Correct Answers most basic unit of life
cells from which of the following organisms have a cell wall ?
a.onion
b.human
c.dog
d.giraffe
e.mosquito Correct Answers a. onion
cells of ___ do not contain nuclei Correct Answers prokaryotes
central vacole in plant cells will lost water causing __ when
placed in a hypertonic solution Correct Answers plasmolysis
chloroplast Correct Answers organelle where photosynthesis
takes place
Chromatin Correct Answers Substance found in eukaryotic
chromosomes that consists of DNA tightly coiled around
histones
contrast Correct Answers refers to how well details of a
specimen stand out against the background
controls Correct Answers give a scientist confidence that the
results obtained from a particular experiment are not being
affected by an unknown factors that would lead to false
conclusions and misinterpretations
