Font size
WorksheetsEOC Review: Biomolecules, Cells, and Viruses
Total questions: 45
Worksheet time: 1hrs 19mins
Match the following functions to the biomolecule
Act as hormones
Lipid
Build muscle
Protein
Carry genetic information
Nucleic acid
Energy source (cellular respiration)
Carbohydrate
Label the parts of the enzyme model
Click on the temperature that this enzyme is having optimum activity.
Your friend is really irritable while sitting in class. He feels lightheaded and dizzy. He is also feeling a bit of confusion and brain fog.
What inferences are most realistic to make about the biomolecules in your friend's body?
He is running low on fast sources of energy
Proteins are being broken down or reshaped
The coding information in the cell is incorrect or incomplete
There is not enough insulation or energy storage
Your friend is really irritable while sitting in class. He feels lightheaded and dizzy. He is also feeling a bit of confusion and brain fog.
What biomolecule does your friend need?
Carbohydrates
Lipids
Proteins
Nucleic Acids
Dystrophin is a molecule that holds muscle fibers together. In people with muscular dystrophy, a genetic disease that causes people to lose the ability to walk at a young age, dystrophin molecules never develop.
What can you infer about the biomolecules of affected individuals? (select all correct answers)
There is a lack of sources of fast energy
A biomolecule is missing
The coding information in the cell is incomplete or incorrect
If removes insulation and long term energy storage
Dystrophin is a molecule that holds muscle fibers together. In people with muscular dystrophy, a genetic disease that causes people to lose the ability to walk at a young age, dystrophin molecules never develop.
What biomolecule is this person missing?
Carbohydrates
Lipids
Proteins
Nucleic Acids
Bowhead whales can have a specialized layer of blubber up to 30 cm’s thick. This acts as a special insulation that traps the heat their muscles create from movement.
What biomolecule is the blubber primarily made of?
Carbohydrates
Lipids
Proteins
Nucleic Acids
Select the rectangle that best answers the question.
Match the word to the correct definition
Active site
the location on the enzyme where the substrate attaches
enzyme
a protein that acts as a catalyst to speed up a chemical reaction
enzyme substrate complex
the substrate and enzyme together
products
what is created from the chemical reaction that occurs between enzymes and substrates
phospholipids
main component of the cell membrane
membrane proteins
allows large molecules to pass through membrane
semipermeable
some substances can go through the cell membrane and some can't
passive transport
does not require ATP; molecules move high to low
active transport
requires ATP; molecules move low to high
Simple Diffusion
When molecules passively cross the plasma membrane through the phospholipid bilayer
Facilitated Diffusion
When molecules passively cross the plasma membrane through a channel protein
Osmosis
The movement of water across the cell membrane
Endocytosis
Bringing in large materials through the cell membrane into a vacuole.
Exocytosis
Moving larger amounts or large quantities of materials through the cell membrane
Hypertonic
The solution contains a high concentration of solute an and low concentration of water
Hypotonic
The solution contains a low concentration of solute an and high concentration of water
Isotonic
The solution has an equal concentration of solute and water compared to the inside of the cell
Sort the types of transport based off of whether they are active or passive.
Diffusion
Facilitated Diffusion
Osmosis
Protein Pumps
Endocytosis
Exocytosis
Sort the types of transport based off of whether or not they need energy.
Endocytosis
Exocytosis
Protein Pump
Osmosis
Diffusion
Facilitated Diffusion
geotropism/gravitropsim
hydorotropsim
thigmotropism
phototropism
Roots
Food Storage, Absorption, and Anchors
Flowers
Reproduction
Leaves
Photosynthesis
Stems
Support and Transports
Identify parts of the pistil (female reproductive part) of the flower.
Pick 2
Sepals
Stigma
Anther
Petal
Filament
Ovary
Label the plant parts
bud
roots
flower
stem
leaf
Match the following plant structures with their correct names.
Stamen
Pistil/Carpel
Pollen
Ovule
The pollen grain moves in the following order during plant fertilization.
Anther
Stigma
Style
Ovary
Ovule
Put the steps of self-fertilization in angiosperms in order:
Pollen released from the anther sticks to the stigma
The pollen travels from the stigma down through the style
The pollen fertilizes the ovule (egg) inside of the ovary
The ovary develops into a fruit to protect and help disperse the seeds
Why will an animal cell that is surrounded by fresh water burst?
water will move out of the cell where there is a lower solute concentration causing the cell to shrink and be dehydrated
water will move into the cell where there is a higher solute concentration causing the cell to be turgid and eventually lyse
water will move out of the cell where there is a higher solute concentration causing the cell to shrink and be dehydrated
water will move into the cell where there is a lower solute concentration causing the cell to be turgid and eventually lyse
Nutrients, like copper, found in the soil are important for reproductive growth in plants. Which statement correctly describes the interaction that occurs between the root and shoot systems of plants to allow reproduction to occur?
copper is produced in the roots when copper-containing compounds are hydrolyzed
copper that is absorbed by the roots is transported to reproductive tissues by the shoot system
the shoot system stores copper for later use by the roots and the reproductive structures
the shoot system transports copper to the roots after it is taken in through the stomata in the leaves
Plant roots have extensions called root hairs. These root hairs are important in the homeostasis of the plant. Which statement best explains the importance of the root hairs to the stems and leaves of the plant?
root hairs convert minerals to glucose for immediate use by the cells
root hairs decrease the need for osmosis and diffusion in vascular tissue
root hairs prevent water loss in leaves through transpiration and gas exchange
root hairs increase the surface area of the roots for nutrient and water absorption
Fruits grown in hot climates are usually less sweet than those grown in cooler temperatures. The high temperatures increase the rate of respiration in the plants, thus reducing the sugar content in some fruits. Why does increased respiration in the leaves and stems reduce the sugar content in the fruits of a plant?
chloroplasts move from the fruit to the leaves and stems to provide energy for respiration
the flow of nutrients shifts from the phloem to the xylem, moving nutrients away from the fruits
sugars are moved from the fruits to the roots fore storage
sugars produced in the leaves are used as an energy source instead of being stored in fruits
Which of the following best explains how plants are able to get water to the leaf?
Leaves absorb the majority of their water directly from the atmosphere
When water is scarce leaves shut down photosynthesis to conserve water.
Leaves receive water through phloem, which transport the water from the roots.
Leaves receive water through xylem, which transport the water from the roots.
Which statement best explains how food produced in the leaf gets dispersed to the roots?
The sugar diffuses down the plant, aided by gravity
The sugar is transported through the plant by the phloem
The sugar diffuses through the leaf, drips on the ground, and is then absorbed by the roots.
Being underground, root cells don't require sugar to survive.
Put the steps of the lytic cycle in order.
Step 1
Step 2
Step 3
Step 4
Step 5
Put the steps of the lytic cycle in order.
Step 1
Step 2
Step 3
Step 4
Step 5
abiotic
biotic
Treatment: Vaccines
Treatment: Antibiotic
Match the following
Virus
Bacteria
Eukaryote
Label the structures in this microbe
Ribosome
Capsid
DNA/RNA
Nucleus
Cell Wall
How do bacteria replicate?
Binary Fission
Lytic Cycle
DNA Replication
Meiosis
A student produces a labeled drawing of a virus for a presentation. The student states that the capsid has a function similar to the nuclear membrane found in animal cells. Which of these describe the similar functions of capsids and nuclear membranes?
both transport proteins throughout the structures
both provide energy for activities in the structures
both protect genetic information for the structures
both code for the proteins needed for reproduction of the structures
In the 1880's, Louis Pasteur developed a method of weakening viruses. The weakened viruses could be injected into healthy individuals. How is this method effective in fighting viral diseases?
the immune system develops antibodies in response to the weakened viruses
the weakened viruses attach to unaffected viruses in the host and interrupt the viral reproductive cycle
the rate of genetic mutation in the host is decreased due to the introduction of weakened viruses
weakened viruses are unable to enter the host organism
The human immunodeficiency virus (HIV) often infects and destroys CD4 T cells. Thes CD4 T cells are one of many kinds of white blood cells that are an important part of the immune system. The most common danger related to the destruction of CD4 T cells is -
an increase in the risk of high blood pressure
an increase in the threat of diseases caused by microorganisms and viruses
a decrease in the flow of blood to vital organs
a decrease in the amount of oxygen being transported to tissues
Which of these describes a difference between viruses and cells?
cells contain protein, and viruses contain only carbohydrates
viruses have flagella, and cells have only cilia
cells reproduce independently, and viruses require a host to reproduce
viruses have membranes made of proteins, and cells have membranes made of nucleic acid
Viruses can be transmitted through air, water, food, insect bites, and direct skin contact. Once a virus gains entry to the body, it invades a host cell in order to -
deactivate the host cell's defenses
synthesize antibodies for defense
metabolize host proteins and grow
access cellular processes for replication
The 1918 influenza epidemic killed between 50 million and 100 million people worldwide. This epidemic happened near the end of World War I. More people died from the influenza epidemic than were killed in the war. Which of the following explains why this virus was so deadly worldwide?
infected soldiers returning from the war spread the virus when they coughed
food was scarce because of the war, so people were undernourished, and their immune systems were weakened
medical personnel often became ill as a result of exposure to airborne virus particles
all of the above
A photograph of a virus is shown. The projections on the surface of this virus allow the virus to -
move inside a host cell
attach to a host cell
control a host cell's DNA
signal other viruses to infect a host cell
Cold sores are caused by the herpes simplex virus type 1. A company that wants to develop antiviral drugs would ask a research immunologist to study -
the mechanisms used by the virus to infect cells
how closely related the virus is to cold viruses
the metabolism of the virus
meiosis in the virus
Bacteria
