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WorksheetsFall 2019 Midterm Biology
Total questions: 35
Worksheet time: 18mins
Induced-fit model of enzyme action
Fluid-mosaic model of the cellular membrane
Endosymbiotic Theory model
Central Dogma of Molecular Biology
During the process of division, the daughter cells each inherit different alleles. What does this process indicate about the organism from which the parent cell originated? Select all that apply.
It is female.
It is unicellular.
It reproduces sexually.
It is genetically diverse.
Asexual reproduction, such as binary fission, results in two daughter cells. Which of the following describes the daughter cells?
They have acquired traits in response to their environment.
One daughter cell has a lower mass of genetic material than the other offspring.
They both have the same genetic material as the parent cell.
The daughter cells have half the amount of genetic material as the parent cell.
What type of energy transformation occurs during photosynthesis?
heat energy to electrical energy
kinetic energy to electrical energy
potential energy to chemical energy
electromagnetic energy to chemical energy
The muscle cells of an elephant contain 62 chromosomes. How many chromosomes are in an elephant egg cell?
31
62
122
144
Which process that occurs during meiosis contributes to a germ cell having unique genetic material?
transcription
replication
crossing over
spindle formation
Mitosis and meiosis are similar processes. Which BEST describes what can only occurs after meiosis?
Parent cells are either haploid or diploid.
Products of cellular division result in identical genotypes.
Four daughter cells are produced by a single parent cell.
The number of chromosomes per nucleus remains the same after division.
Which energy transformation is occurring?
thermal to radiant
radiant to thermal
radiant to chemical
thermal to electrical
Which of the following would be least likely to undergo photosynthesis?
roots
stems
leaves
How does the genetic material of a potato sprout compare to the parent plant?
The sprout has a random genetic assortment.
The sprout has twice the amount of genetic material of the parent potato.
The parent potato has twice the amount of genetic material of the sprout.
Both the parent potato and the sprout have identical genetics.
Isabelle wants to determine whether a homeostatic process requires energy to proceed. Which characteristic should she look for?
a reaction that is coupled with the hydrolysis of ATP
a reaction that is coupled with the production of ATP
movement of a substance across a concentration gradient
movement of a substance across a membrane in both directions
Which will change the most as the system moves towards equilibrium?
the volume of the solution
the shape of the dye molecules
the temperature of the water
the concentration of the dye molecules
Which best explains why energy is necessary to complete the function?
The ion is being transported against the concentration gradient.
The ion has more kinetic energy that the surrounding molecules.
The ion is a waste product and is being digested by the cell.
The ion is too large to pass through the cellular membrane.
Pepsin functions best in acidic environments.
Pepsin functions best in alkaline environments.
Pepsin is least effective in low pH environments.
Pepsin is active over a broad range of pH values.
Which of the following is most likely occurring in cancer cells?
Oncogenes are active and tumor suppressor genes are active.
Oncogenes are active and tumor suppressor genes are inactive.
Oncogenes are inactive and tumor suppressor genes are active.
Oncogenes are inactive and tumor suppressor genes are inactive.
This process is necessary in order to
allow the cell to divide.
provide nutrients to the cell.
protect the cell from infection.
allow the cell to change location.
prophase
metaphase
anaphase
telophase
46 (2N) --> 46 (2N)
46 (2N) --> 23 (N)
23 (N) --> 23 (N)
23 (N) --> 46 (2N)
The apparent shrinking of Cell C indicates the reaction to the cell to what?
an anaerobic environment
lower solute concentration outside the cell
more oxygen inside the cell
higher solute concentration outside the cell
If a cell that has a water concentration of 99% and the outside environment has a water concentration of 92%, what is the fate of the cell?
The cell will shrink due to the movement of water from a high concentration to a low concentration.
The cell will swell due to the movement of water from a high concentration to a low concentration.
The cell will remain the same size due to no net movement of water.
The cell will burst due to apoptosis.
How does the addition of heat affect the ability of an enzyme to help the substrate form a bond?
Heat allows the substrate to bond more quickly.
Heat provides places on the enzyme for other molecules to bond.
Heat changes the enzyme so that the substrate can no longer bond.
Heat changes the chemical composition of the substrate so that it no longer needs the enzyme.
based on the structure, which material will dissolve this biomolecule the BEST?
oil
dilute alcohol
water
ionic solution
The cytoplasm has pulled away from the plant cell wall. What has occurred?
The cell was submerged in a pure solution.
The cell was submerged in a hypotonic solution.
The cell was submerged in a hypertonic solution.
The cell was submerged in an isotonic solution.
osmosis
endocytosis
active transport
facilitated diffusion
Select the true statement about cellular membranes.
Cell membranes prevent all materials from entering the cell.
Cell membranes only provide structural support for the cell.
Cell membranes regulate which substances enter and exit the cell.
Cell membranes only allow water and water-soluble substances to enter the cell.
Which part of the cell controls the movement of the substances into and out of the cell?
mitochondria
cell membrane
chloroplast
nucleus
A student is given the following list:
- Protein
- RNA
- mitochondria
- ribosome
What structure allows the student to conclude that this a eukaryotic cell?
protein
RNA
mitochondria
ribosome
Which of the following explains the graph of the differing blood glucose levels?
The liver stores excess glucose as glycogen. The liver can then convert glycogen into glucose when levels are decreasing.
The liver only stores excess glucose as glycogen.
The liver cannot process glucose.
The liver destroys glucose and does not make glycogen.
Coral reefs are made up of animals and algae living in symbiotic relationships. How are the animal cells and algae cells similar?
They use food for energy.
They each release oxygen.
They each take in carbon dioxide.
They each use energy from sunlight.
Identify the structure where proteins are synthesized.
1 - cell wall
3 - cytoplasm
5 - mitochondria
7 - ribosome
9 - nucleus
If the cell can no longer divide, which part has MOST likely stopped working?
A - chloroplast
C - nucleus
D - endoplasmic reticulum
BE - mitochondria
A leak in a structure of a plant cell resulted in waste materials moving into the cytoplasm of the cell. Which structure MOST likely had the leak?
AE - cell wall
B - central vacuole
CD - cell membrane
AD - lysosome
The doughnut best represents which cellular structure?
lysosome
mitochondria
nucleus
cellular membrane
Which structure is responsible for producing ATP?
A - chloroplast
C - nucleus
D - endoplasmic reticulum
BE - mitochondria
What do an amoeba and a human have in common?
a heart
a spine
lungs
cells
