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