Unit 1 Biology Test
A student is viewing an onion cell under a microscope using the 10x eye peice and 10x objectice lens. What is the magnification of the image below
100x
What is the most likely size of the cells above.
20 micrometers
A carbon atom had an atomic number =6 and an atomic mass =12 What is the number of electrons it has
4
Scientists are conducting an experiment to see how antibiotics resistance develops in bacteria population. They hypothesize that bacteria exposed to antibiotic once every 24 hours would develop resistance faster than bacteria exposed to the antibiotic once every 12 hours. The scientist treat 50 dishes of bacteria with the antibiotic once every 24 hours and 50 dishes of bacteria with the antibiotic once every 12 hours. What would be the best control group for this experiment?
50 dishes of bacteria that are never treated
To measure 2 grams of glucose. One should use
A balance
A certain organism has many cells each containing a nucleus. If the organism makes its own food it would be cassified as
A plant
Each colony on the petri dish represents
A single bacteria that reproduced many times into a large number of bacteria
After a few days it was evident that the yeast that were given glucose were no longer growing this may be due to
All of the above
Mitochondria have a double membrane and DNA within it. They are found plentiful in animal and plant cells these characteristics suggest that....
All of the above
The following will help you trust the data in an experiment that you design you
All of the above
Whoch of the following is a property of water
All of the above
Converts chemical energy to energy to run the cell
All respiration reactions
According to the table how should this organism be classified?
Animal
In order to treat a bacterial infection one needs
Antibiotics
Order these from least to greatest; Virus, molecule, bacteria cell, atom, animal cell
Atom,molecule, virus, bacteria cell, and animal cell
The best reaons as to why the soil be in our lap produced living cells is
B+C Cells were in the soil cels already Cells were dormant but become active with food and water
An antibiotic is a drug used to kill....
Bacteria
I am always a single cell
Bacteria
Vaccines are made to protect against me
Bacteria and virus
A student designs in experiment to see the effect of feeding Yeast different sugars on the growth of the size of a balloon. They use a string to measure how long the balloon expands and record the data as follows the data above is invalid because
Both A and B There is not control And A large range suggests too many variables
Happens in photosynthetic cells
Carbon dioxide + water+ light energy > glucose and oxygen
The products in this chemical reaction are glucose and oxygen
Carbon dioxide + water+ light energy > glucose and oxygen
Would need chloroplasts to help the process
Carbon dioxide + water+ light energy > glucose and oxygen
Yeast are used by bakers mainly because
Carbon dioxide given off makes bread rise
An animall cell does not have a
Cell wall
Which of the following gives a plant cell it's rigid rectangular cell structure?
Cell wall
if The balloon over the test tube labeled control group with glucose and water expanded then this would mean
Chemical reaction occurs with a gas given off
When ethanol and oxygen were combusted the reaction caused a ping-pong ball to fly the energy transformation is
Chemical to kinetic and sound
Which molecule in plant cells first captures the radiant energy from sunlight?
Chlorophyl
If a water supply gets contaminated by sewage people contract a bacterial infection that causes excessive diarrhea and vomiting called
Cholera
Water consists of hydrogen and oxygen atoms that are_______bonded and the uneven sharing of electrons makes water_________
Covalent, polar
A patient diagnosed with small pox asks the doctor for a prescription of antibiotics. The doctor would
Disagree and suggest they receive a vaccination for small pox
The corrct sequence of a virus infection of a cell is
Docking, entry, replication, release
Which instrument should be used to see a virus?
Electron microscope
At least 10 times larger
Eukaryotic
Has DNA in nucleus
Eukaryotic
Has membrane bound organelles like mitochondria
Eukaryotic
Plants, animals, fungus, protists are this has cell membrane, ribosomes, crytoplasm
Eukaryotic
Yeast were fed glucose and placed into a test tube then balloon was placed over the top. After a few hours the balloon_________ due to__________being madefrom the process of_____________.
Expanded, carbon dioxide, alcoholic fermentation
True or false a virus could only produce on their own
False
True or false animal cells have mitochondria and a nucleus like bacteria cells
False
In the process of photosynthesis light energy is used to split water into hydrogen and oxygen. The hydrogen combines with the carbon dioxide to ultimately produce________________.
Glucose
Used to make beer
Glucose > carbon dioxide + ethanol + 2 ATP
Yeast breakdown food to run their cells this way
Glucose > carbon dioxide + ethanol + 2 ATP
Used to make yogurt closest tooth decay and makes your muscles sore
Glucose > lactic acid + 2 ATP
Makes the most adenosine tri- phosphate
Glucose+ oxygen > carbon dioxide + water + 36 ATP
Evidence of living things include all of the following except
Has a nucleus
Eukaryotic cells are different from prokaryotic cells because eukaryotic cells
Have a nucleus
Bacteria that are resistant to antibiotics are becoming more common in hospitals for all of the following except?
Hospitals are breeding grounds for germs
the carbon atom would be found in family_____ on the periodic table and _____react with other atoms.
IV, will
Hydrogen is placed in group 1 because
It has one electron in its outer shell
You are a scientist who wants to test soil's for evidence of life. Your experiment involves putting the same amount of two different soils in the same size test tube then adding the same exact amount of food and water to each test tube a reasonable control group would be
Just water and glucose
A cell from heart muscle would probably have an unusually high proportion of ____________ since it need so much ATP.
Mitochondria
Viruses are this
Neither Prokaryotic or Eukaryotic
Which gas is the least chemically reactive?
Neon
The part of the atom that reacts with other atoms and forms bonds is
Outer orbital electrons
The best way to explain antibiotic resistance
Over time bacteria mutate and evolve and are no longer killed by the antibiotic.
Oxygen and sugar are the products of
Photosynthesis
I have a cell membrane, nucleus and ribosomes
Plant and animal
The picture to the right is a
Plant cell
One difference between aerobic and anaerobic respiration is that aerobic respiration
Produces more ATP than anaerobic respiration
All bacteria are this
Prokaryotic
The Sabin vaccine is a liquid containing weakened polio viruses vaccinated individuals become protected against polio because that weakened viruses
Promote production of antibodies
What can a vaccine do when it is injected into the body?
Prompt the body to produce immunity to a disease
A virus consists of DNA or RNA surrounded by a
Protien coat
A patient needs a vaccination. Vaccinations prevent disease by.
Stimulating the production of antibodies
Which of the following is NOT an infectious disease caused by a virus
Strep throat
The part of the cell that contains DNA is
The nucleus
There is no vaccine against the common cold because
The protein coat of the cold virus changes
In the soil lab the variables controlled well were
The timing of placing the balloon on the test tube
The atomic number of iron is 26, and the atomic mass is 56. What do these number mean in rehard to protons, neutrons,& electrons?
There are 26 protons ans 30 neutrons
What do elements C, Si, Ge, Sn, and Pb all listed on the periodic table have in common?
They all have the same number of electrons in their outer shells.
True or false bacteria come in three shapes Cocci, bacillus, and spirillum
True
True or false cells use food for energy in for building cell parts
True
Disease can be transmitted through air; the disease agent is too small to be seen under the compound microscope; it cannot be grown using any known food. What is this disease classified as?
Virus
I need a host cell to reproduce
Virus
In aerobic respiration glucose reacts with
Water
