Bio 1230L Cumulative Final

Which metric unit is used to best measure the distance between two cities?

Kilometers

Seeds that farmers plant in their farmland must have of which of the following property?

Living embryo

The prefix kilo means ____

a thousand

The seed germination experiment in our lab tests the following hypothesis:

Surface sterilization has no effect on bean seed germination

The ___ is the metric unit for volume

Liter

The ____ is the average value of a dataset.

Mean

Experimental error in scientific research/method refers to the following.

Differences in the dependent variable in experimental units that are treated alike

Following helps to measure the experimental error in experimentation

Replication

Which of the following is true with regard to the dependent variable?

The dependent variable should be plotted on the y-axis

What is the mode of the graph above?

20-29

Which metric unit would be useful for measuring long distances?

kilometer

Which of the following tools would you use to accurately measure volume?

graduated cylinder

Which of the following is equivalent to the human body temperature?

37 C

The volume 350 uL is equivalent to which of the following?

0.35 mL

Which of the following is the first step in the scientific method?

Observation

Which of these statements is false?

the hypothesis should be written as an “If…then” statement.

Which of the following is the equivalent of 55.44 grams?

5.54 x10^7 micrograms

If you wanted to create a 2 mM solution of sodium chloride in 1000 mL from a 200 mM sodium chloride stock solution, what volume of the solution would you use? (hint: M1V1 = M2V2).

10 mL of 200 mM stock

Measurements of which of the following should be plotted on the vertical (y) axis?

dependent variable

A _______________ is the best instrument to measure and transfer exactly 65 milliliters (mL) of water.

100 mL Graduated Cylinder

The extent to which image details stand out against a background is known as ____.

contrast

The purpose of a microscope is to ___ an object

magnify

An increase in magnification on a compound microscope does NOT result in ___.

an increased working distance

The space between the objective lens and the slide on the stage is known as the ____. 

working distance

Which of the following should only be used when the scanning objective is in place?

coarse focus adjustment knob

The ____ provides shape to the cell, protects it from the external environment, and regulates passage of materials into and out of the cell.

plasma membrane

The organism in the figure is classified as a ___

Prokaryote

Plant cells and animal cells both contain ____.

 

I. cell wall

II. mitochondria

III. chloroplasts

IV. ribosomes

II and IV

What shape is the organism shown?

Baccilus

The ____ contain enzymes to break down large molecules.

Lysosomes

The ____ is the value that appears most frequently in a group of measurements.

mode

Seed viability refers to the following seed quality criterion.

whether the seed is alive

Readers find the conclusions of the discoveries of a research paper in the following section.

Discussion

Which of the following measures of central tendency is the most sensitive to outliers?

mean

Which of the following measures of central tendency is the most sensitive to outliers?

Title

An independent variable is ___

the factor that is being manipulated by the researcher

Tetrazolium (TZ) test is based on the following

Reduction of TZ to a pink color compound

A ____ should be used when the independent variable is continuous.

line graph

Readers find the information needed to reproduce results of a research paper in the following section.

Materials and Methods

The dependent variable is ___.

The factor that is plotted on the y-axis of a graph

The regulation of the passage of substances into and out of the cell is called ____

selective permeability

When water moves into a cell and presses the cytoplasm against the plant cell wall ____. 

Turgor pressure occurs

____ is the specific name for the movement of water from a region of higher concentration to a lower concentration.

Osmosis

A(n) ____ solution has a greater concentration of solute relative to a second one. 

hypertonic

If a red blood cell is placed into a hypotonic solution, the red blood cel will _____. 

increase in size

Photosynthetic pigments in plants are specifically located in the following.

Thylakoid membrane

Spectrophotometry is the study following.

Interaction between electromagnetic radiation and matter

What does Beer's law propose?

Absorbance and concentration are directly proportional

The fraction of light that passes through the sample and reaches the detector of the spectrophotometer is known as ____.

Transmittance

Using the graph, what wavelength of light is the most absorbed by chlorophyll a?

440 nm

What is correct about diffusion?

Doesn’t require ATP

Proteins produced by __________ are released to and transported by __________ .

Ribosomes, endoplasmic reticulum

Some proteins on the cell membrane were seen helping the movement of some molecules into the cell.  What is this process?

Facilitated diffusion

In the biological membranes experiment, what does the dialysis tubing represent in terms of a cell?

plasma membrane

This structure in plant cell stores a large volume of water and helps the cell maintain its shape.

Vacuole

This structure in animal cell helps move chromosomes during cell division.

centriole

These structures store and deliver nutrients and proteins throughout the cell.

vesicles

Choose what is not a good-enough life-defining characterristic.

Growth

Osmosis is the following

movement of water across a membrane

During the process of diffusion, molecules move from a ____ concentration to an area of _____ concentration.

higher;lower

____ refers the amount of light that passes through a specimen in a spectrophotometer.

transmittance

The tertiary and quaternary structure of an enzyme is determined by ____.

the primary structure

During the enzyme laboratory, ____ is a substrate of the reaction we are performing. 

catechol

The amount of product produced per unit time is the definition of ____.

enzyme efficiency

____ catalyze reactions.

enzymes

In the photosynthesis laboratory experiment, why did the absorbance readings of chlorophyll steadily increase as the wavelengths were increased from 600 to 650 nm?

The wavelengths gradually move toward the ideal color ranges for photosynthesis.

To test an unknown sample for the presence of a simple sugar, you would use ____.

Benedict’s reagent

____ predicts a linear relationship between the absorbance of the solution and the concentration of the sample.

Beer’s law

Which macromolecule will contain a hydrocarbon chain and a glycerol molecule? 

Lipids

What does Beer's law propose?

Absorbance and concentration are directly proportional

Biuret reagent should be used to indicate the presence of ____.

peptide bonds

Placing an unknown item on a paper bag should reveal if the item is a ____.

lipid

Following is the entire range of electromagnetic radiation.

electromagnetic spectrum

Which of the following is true for glycogen?

All of the above

Which of the following is a green pigment that is found in plants?

chlorophyll

What is the total magnification when using the 10X objective lens?

100x

Why must a small object seen through the ocular lens be centered in the field of view before changing to a higher power objective lens?

To prevent its disappearance due to the decrease in the field of view.

The arrow labeled as 1 is pointing to what structure in the image below?

oculars

Most of the genetic material of bacteria is found in this structure. 

Nucleoid

In an animal cell, cytosol can be found ______________ .

Between cell membrane and nuclear membrane

These two Domains are prokaryotic.

Bacteria and archaea

Ribosomes are synthesized specifically in the following structure.

Nucleolus

Which of the following describes proper microscope care and/or technique?

Only two answer choices are correct

Working distance is the _____

distance from the bottom of the objective lens to the specimen

The coarse adjustment knob should only be used when using the ____.

scanning objective

Which form of cell division allows prokaryotic cells to reproduce

Binary fission

Which of the following best defines the term “karyokinesis”

Division of the nuclear material

Daughter cells that become gametes are produced in which type of cell division?

Meiosis

within which phase of mitosis does DNA appear to be diffuse or stringy in appearance.

prophase

Within which phase of mitosis does the centromere split and single chromatid chromosomes migrate to opposite poles?

Anaphase

During which phase of mitosis can cytokinesis be observed?

Telophase

Within which phase of mitosis are double chromatid chromosomes aligned at the equatorial plane?

Metaphase

Which type(s) of cell division produces daughter cells that are genetically identical to the parent cell?

Binary Fission and Mitosis

If a cell contains ten double chromatid chromosomes during prophase of mitosis, what should be the chromosome composition of this cell at telophase?

Two nuclei having ten single chromatid chromosomes

What is the purpose of mitosis?

All of the above

The form of cell division in which gametes are produced, best describes

meiosis

which form of cell division is specific to gamete formation within female organisms

oogenesis

Which of the following is an example of a somatic cell

all of the above

during which phase of the cell cycle does DNA replication occur

S (Synthesis) phase

After DNA replication is complete, each chromosome consists of

two chromatids