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WorksheetsCHAPTER 5 BIO122 FINAL TEST 20/21
Total questions: 15
Worksheet time: 7mins
A zoologist who observed that tissue of animal had cell (1839)
Anton van Leeuwenhock
Robert Hooke
Theodore Schwann
Mattias Schleiden
which of the following cells has the greatest surface-to-volume ratio?
ostrich egg
human muscle cell
human red blood cell
bacterium
The membranous compartmentalization of a cell
divides the cell into two equal-sized halves
requires the presence of a cell wall.
allows different chemical conditions to be maintained in different parts of the cell.
is common to both prokaryotes and eukaryotes.
The nucleus of a cell.....
is surrounded by a single layer of membrane.
is the primary location of protein synthesis
is contained within the nucleolus
contains DNA.
The diagram shows a microscope. What is the part labelled X and what is its function?
The objective lens and its function is to allow you to see a clear, magnified image.
The stage and its function is to hold the glass slide.
The coarse adjustment and its function is to allow you to see a clear, magnified image
The mirror and its function is to shine light on the glass slide
On a typical microscope, there is a rotating part containing three different objective lenses. What is this part called?
Focus knob
Eyepiece
Stage
Turret
The complex of proteins and DNA in a nondividing cell is called
chromatin
a ribosome
a lysosome
a nucleolus
The function of the nucleolus is
intracellular digestion.
to manufacture ribosomal RNA.
to manufacture polypeptides
to store chromatin
When viewing a sample of onion cells using a microscope, a drop of iodine solution is placed on the onion cells. Select two reasons why this is so.
Onion cells contain starch.
To see the cells more clearly.
To protect the onion cells.
To keep the onion cells flat.
Function of Golgi apparatus?
is composed of stacks of membranous vesicles that are continuous with one another.
stores, modifies, and packages proteins.
strings together amino acids to produce proteins.
is the site of carbohydrate breakdown.
Function of contractile vacuoles..?
are generally found in protists that inhabit salt water
prevent cells from bursting as a result of the influx of excess water.
allow organisms to avoid dehydration by absorbing water from the environment.
help in the excretion of excess salt.
The function of chloroplasts is
lipid synthesis.
intracellular digestion.
photosynthesis.
cellular respiration.
Which of the following statements about plant cell walls is false?
Plant cell walls protect plant cells by forming an impermeable layer around the cell.
Wood is primarily composed of plant cell walls.
Plant cell walls consist of cellulose fibers embedded in a matrix of polysaccharides and proteins
Plant cell walls are multilayered structures
who is observed living cells in pond water, which he called "animalcules"
Theodore Schwann
Anton van Leeuwenhock
Robert Hooke
Rudolf Virchow
When looking at an onion cell under a microscope, a thin slice of onion tissue is placed on a slide, a small drop of dye is placed on the tissue. What should be done next?
A drawing of the onion cells should be made
The coarse focus is adjusted until the cells become visible.
A coverslip is placed over the onion tissue.
The onion is cut into thin slices.
