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WorksheetsQ1 &Q2 Review 12/15
Total questions: 79
Worksheet time: 53mins
Which organelle is known as the "powerhouse of the cell"?
Nucleus
Mitochondria
Ribosome
Golgi apparatus
What is the main function of the ribosomes in a cell?
Store genetic material
Produce proteins
Break down waste
Transport substances
Which organelle contains the cell’s genetic material?
Endoplasmic reticulum
Nucleus
Lysosome
Vacuole
Which organelle is responsible for photosynthesis in plant cells?
Chloroplast
Mitochondria
Golgi apparatus
Lysosome
A cell is unable to break down waste materials. Which organelle is most likely malfunctioning?
Lysosome
Ribosome
Nucleus
Chloroplast
If a cell needs to transport proteins to different parts of the cell, which organelle will be most involved in this process?
Golgi apparatus
Vacuole
Nucleus
Chloroplast
A scientist observes a cell with a large central vacuole. What type of cell is she most likely observing?
Animal cell
Plant cell
Bacterial cell
Fungal cell
Which organelle would you expect to find in large numbers in a cell that produces a lot of protein, such as a pancreatic cell?
Ribosome
Lysosome
Vacuole
Chloroplast
A student is given a diagram of a cell and asked to identify the organelle responsible for energy production. What evidence should the student use to support their answer?
The organelle has a double membrane and many folds called cristae.
The organelle is filled with green pigment.
The organelle is a small round structure without a membrane.
The organelle is a large sac filled with water.
Imagine a cell that cannot make enough proteins and is not growing properly. Using your knowledge of cell organelles, which organelle might be malfunctioning and why?
Ribosome, because it is responsible for protein synthesis.
Lysosome, because it digests waste.
Vacuole, because it stores water.
Chloroplast, because it performs photosynthesis.
The Eukarya Domain has which organisms?
Bacteria that causes diseases
Bacteria found in volcanoes
plants, animals., fungi and protists
none of the above
Multicellular, no cell wall, moves and is heterotroph; which kingdom does it belong to?
Animalia
Eubacteria
Fungi
Plantae
Autotrophs
Make their own food
Get their food from others
are Fungi
are none of the above
Heterotrophs
make their own food
get their food from others
are fungi
none of the above
Which kingdom is the "germs" in?
e-coli
eubacteria
archaebacteria
staph
Multicellular organisms belong in which kingdom?
Archaebacteria
Fungi
Protist
Eubacteria
Mutlicellular decomposers are in which kingdom
Fungi
Protist
Plantae
Animalia
Which Kingdom is the virus in?
Protists
Animalia
Fungi
It is not in a kingdom because it isn't living.
Mulitcellular organism have
one cell
many cells
no cells
both one cell and many cells
I have no nucleus and live in very hot liquids. Which Kingdom am I in?
Fungi
Protist
Eubacteria
Archaebacteria
Which of the following characteristics is the most important in classifying an organism into a kingdom?
red in color
photosynthesis
reproduces asexually and sexually
height
Which of the following is NOT living?
bacteria
tree
amoeba
virus
Which is the property of matter in which a substance can transfer heat or electricity?
magnetism
conductivity
density
solubility
What happens when a substance undergoes a physical change?
Some physical properties change, but the substance keeps its identity.
No physical properties change, and the substance keeps its identity.
Some physical properties change, and the substance changes its identity.
No physical properties change, but the substance changes its identity.
Which of the following is an example of a physical change?
Water freezing into ice.
A piece of wood burning.
A toy car rusting.
Zinc producing hydrogen gas when mixed with water.
What type of change has occurred when a nail rusts?
A physical change
A chemical change
An atomic change
A reactive change
What does it mean when there is a physical change?
Matter has changed from one substance into another.
Matter has changed on the molecular level.
A new substance has been formed.
Matter has changed size, shape or form.
What is an example of a chemical change that happens inside your body?
Food being broken down by enzymes in your stomach
Food being broken into small pieces by your teeth
Food being moved from your esophagus into your stomach
Water being absorbed inside your large intestine
What can you infer about the changes that formed the Grand Canyon?
They were molecular changes
They were chemical changes
They were physical changes
They were changes in weather
What happens when sodium undergoes a chemical reaction with chlorine?
The two substances form a heterogeneous mixture
The two substances form a homogenous mixture
A new compound is formed — salt
The two substances undergo various physical changes
Which of the following is an example of chemical change?
Filling up a balloon with hot air.
Taking a glass of water and freezing it by placing it in the freezer.
A plant collecting sunlight and turning it into food.
Your dog ripping up your homework.
Which change can be easily be reversed?
Chemical Change
Physical Change
Both a physical and chemical change
Neither a physical or chemical change
Which is an example of a physical change?
Metal rusting
Silver tarnishing
Water boiling
Paper burning
Which is an example of chemical change?
Water freezes
Wood is cut
Bread is baked
Wire is bent
Which of the following strictly alters the physical properties of a substance?
chemical change
both physical and chemical
melting and freezing
physical change
The statue of liberty turning green is an example of a _____________.
physical change
painting
chemical change
a statute become old
(a)
(a)
(a)
(a)
(a)
(a)
(a)
(a)
(a)
(a)
(a)
(a)
EXPERIMENT #1
REACTANT(S) ------> PRODUCT(S)
48.6g Magnesium + 32.0g Oxygen ------> 80.6g Magnesium Oxide.
Does this experimental data support the Law of Conservation of Mass?
yes
no
EXPERIMENT #3
REACTANT(S) ------> PRODUCT(S)
12 .2 g Magnesium + 8.0g Oxygen ------> _____Magnesium Oxide
Assuming that magnesium and oxygen will react completely with one another, predict the mass of magnesium oxide that will be produced. _________
12.2 g
8.0 g
20.2 g
4.2g
EXPERIMENT #4
If the cap had been removed during the reaction (open system), would there still be 44g of Product in the jar?
No, some of the substance was lost out of the container as a gas
Yes, mass can't be destroyed
A scientist mixed 100 grams of salt into a 500 grams of water. How many grams of salt water did I make?
500g
400g
600g
700g
A student heated a 10 gram sample of a compound in an open container. A chemical reaction occurred. The mass of the sample was measured again and found to be less than before. Which of the following explains the change in mass of the sample.
The heat caused the compound to become less dense
The reaction gave off more heat than was added
Some of the lighter atoms were converted to energy
One of the reaction products was a gas.
Which of the following is a physical change?
rusting metal
boiling water
leaves changing color
bubbling of an antacid tablet in water
If you heat a substance in a test tube and it starts as green and after heating is black, you have observed a ____________
Chemical change
Physical Change
Psychological change
Physical Property
Is the equation balanced?
yes
no
Is the equation balanced?
yes
no
In 6CO2, identify the subscript.
C
O
6
2
20 g of water decomposes into 12 g of oxygen and an unknown amount of hydrogen. How much hydrogen was there?
32 g
20 g
12 g
8 g
10g of H2 + 20 g of Cl2 --> 30 g of 2HCl. What are the products?
H2 + HCl
H2 + Cl2
HCl
Cl2 + HCl
Which equation follows the law of conservation of mass?
Na + Cl2 --> NaCl
Na + Cl2 --> 2NaCl
2Na + Cl2 --> NaCl
2Na + Cl2 --> 2NaCl
Does this equation follow the law of conservation of mass?
Yes, because the mass is the same.
Yes, because the mass is not the same.
No, because the mass is the same.
No, because the mass is not the same.
Does this follow the law of conservation of mass?
Yes, because there are the same number of atoms.
Yes, because there are not the same number of atoms.
No, because there are the same number of atoms.
No, because there are not the same number of atoms.
In NH3, how many Nitrogen's are there?
1
2
3
4
