WorksheetsChapters 1-4 (Science)
Total questions: 140
Worksheet time: 2hrs 41mins
What is a cell?
They are what make up animals
They are what make up plants
They are what make up all living things
They are what make up everything
What are the three (3) things that living things need to live?
Energy
Materials
Space
All of the above
Why are microscopes so important to the study of cells?
Cells are too big to see
Cells are too small to see
I can see cells with my eyes
I need glasses to see cells
What type of organism are you (HUMANS) ?
Multicellular
Unicellular
One Cell
organism
What are the four(4) main characteristics that all living things share?
Organization
nonliving
Growth and development
Response to the environment
Reproduction
What is contained in a cell's nucleus?
nuclei
cell membrane
cytoplasm
genetic material (DNA)
The inside of the cell is called?
Cell Membrane
cytoplasm
organelle
chloroplasts
A cell is surrounded by a
cytoplasm
cell
cell membrane
Cell wall
Cells require water.
True
False
Cells produce energy.
True
False
Bacteria are a type of single celled organism.
True
False
How are new cells made?
A cell will split in two
There are 'builder' cells that use nutrients to make them
cells are taken from things we eat, and used in our body
We are born with all of our cells
What are the two main types of cells?
person and grass
skin and eye
horse and cow
plant and animal
Which of the following functions or jobs do cells perform?
Converting energy
Digesting food
Getting rid of waste
All of the above
About how many cells are in the average human body?
Two million
One hundred million
Three trillion
More than 37 trillion
What are the Three(3) domains of organisms?
Archaea
Bacteria
Parasites
Eukarya
All Eukaryotic organisms are in which domain?
Archaea
Bacteria
Eukarya
None of the above
How many cells do a unicellular cell have?
(a)
How many cells do a multicellular cell have?
(a)
What are the Three (3) major parts of the Cell Theory
Every living thing is made of one or more cells
All cells carry out the functions needed for life
New cells come only from other living cells
None of the above
Which three(3) elements make up most of the human body?
Nitrogen
Oxygen
Carbon
Calcium
Hydrogen
Which two(2) elements make up a water molecule?
Helium
Hydrogen
Carbon
Oxygen
One molecule of water contains____ hydrogen atoms
1
2
3
4
One molecule of water contains____ oxygen atom(s)
4
3
2
1
A carbohydrate is made up of _______ that are linked together
sugars
proteins
bread
energy
Carbohydrates may be broken down to provide the cell with ________
sugar
energy
life
protein
Examples of lipids are:
fats
oils
waxes
All of the above
How many layers of lipids make up the cell membrane?
three
two
one
What are the four types of large molecules in living things?
proteins
carbohydrates
Water
LIpids
Nucleic acids
A cell has about (a) percent of water
Fats and oils are lipids and they do dissolve in water
True
False
Nucleic Acids hold the cell's genetic information
True
False
Proteins are made of smaller molecules called
Bases
Acids
Nucleic Acids
Amino Acids
A major energy source for all cells is glucose. Glucose is a _____ molecule
water
food
sugar
energy
OUR cells release chemical energy from_____
water
exercise
sunlight
food
How do plants get their energy to make glucose and other sugars.
water
exercise
sunlight
food
What is the process that plant cells use to change the energy in sunlight into the chemical energy in glucose called?
Cellular Respiration
Photosynthesis
Fermentation
None of the above
In what organelle does photosynthesis take place?
Mitochondria
Chlorophyll
Chloroplasts
None of the above
Where is chlorophyll (green pigment) found?
Plant cells
Animal Cells
Plant and Animals Cells
None of the Above
Chlorophyll is the molecule that captures the energy in sunlight
True
False
The two basic processes that cells use to break down glucose for energy are: cellular respiration and fermentation
False
True
Cellular respiration requires oxygen
True
False
Fermentation requires oxygen
True
False
Cellular respiration occurs in organelles called mitochondria?
True
False
The process of fermentation is important in some foods. What 3 foods?
Bread
Meat
Yogurt
Cheese
Fermentation produces a waste product called lactic acid. This makes your muscles sore after hard exercise.
True
False
Cell division is a process that divides one cell into two cells.
True
False
Before the cell divides, the DNA gets ____
smaller
bigger
copied
split
Why is cell division important? Choose all correct answers.
Help growth of an organism.
Help eukaryotic cells evolve quickly.
Repair damaged cells.
Renew or replace old cells.
Does the male or female have an XY pair of sex chromosomes?
Female
Male
Diffusion is the process by which molecules spread out
True
False
When molecules move by diffusion, they move from areas with __ molecules to areas with __ molecules
more/ more
less/less
more/less
less/more
The movement of particles is __________, resulting in the particles being spread throughout the container
Structured
In a straight line
Random
In curved, way motions
Active transport requires energy
True
False
The picture below is an example of _________________.
osmosis
isotonic
diffusion
active transport
Diffusion is quicker/faster in ..................................
solids
liquids
gases
What is DIFFUSION?
An increase in temperature does what to diffusion?
Speeds it up
Slows it down
Nothing
Stops it all together
Which of the following is/are results of the cell cycle ?
growth
repair of damaged cells
replacement of dying cells.
All of the above
How many chromosomes will a normal human have after a complete cell cycle?
23
46
47
92
What is the longest stage of the cell cycle?
Interphase
Mitosis
Cytokinesis
Prophase
DNA replication occurs during:
Anaphase
Interphase
Metaphase
Prophase
_________ reproduction involves 2 parent cells, a sperm and an egg.
Sexual
Asexual
______ reproduction involves 1 parent organism duplicating itself (copying)
Sexual
Asexual
Offspring are identical to the parent
Sexual
Asexual
Offspring are not identical to the parent, but contain genes from both
Sexual
Asexual
Two parents produce an offspring that contains 1/2 of the parents' DNA.
Sexual
Asexual
Asexual reproduction is associated with what type of cell division?
Mitosis
Meiosis
The process in which a body part gets broken off and grows into a whole new organism is called: Regeneration
True
False
Which type of asexual reproduction is taking place?
A planarian is a non-parasitic flatworm. If a planarian was injured by a predator, it could re-grow its body parts. If the body parts were not eaten by the predator, the part could re-grow into a whole new planarian as well.
Budding
Fission
Vegetative propagation
Regeneration/Fragmentation
A prokaryotic cell does NOT have a nucleus, so it cannot divide by mitosis. Instead, it divides through a process called___
fusion
fission
binary fission
Mitosis
Sex cells are produced by _____________.
photosynthesis
zygotes
meiosis
mitosis
Sex cells have ____________ of the DNA found in body cells.
all
none
half
a little bit
What is an inherited trait?
A trait handed down to you by your family.
A trait you developed because of the environment.
A trait handed to you from your friends.
A trait you developed as an adult.
What characteristic is most likely to be inherited by a baby?
Being hungry
The ability to talk
Crying every 5 minutes
Blue eyes
What do we call the product of parents?
Teenager
Child
Offspring
Infant
Homozygous dominant
FF
Ff
ff
Homozygous recessive
FF
Ff
ff
Heterozygous
FF
Ff
ff
Used to show recessive alleles
captial letters
lowercase letters
numbers
Used to show dominant alleles
captial letters
lowercase letters
numbers
The physical appearance of an organism based on traits
Genotype
Phenotype
Meiosis
Genetics
The letters that represent different forms of a gene.
Allele
Mutation
Trait
Trait of an organism that can be HIDDEN by the dominant form of a trait.
Recessive Trait
Phenotype
Allele
Having two of the SAME alleles for a trait.
Recessive Trait
Homozygous
Genotype
The trait that overshadows and is expressed.
Dominant Trait
Phenotype
Allele
Having two DIFFERENT alleles for a trait.
Recessive Trait
Heterozygous
Genotype
In a heterozygous genotype, the ___________ allele takes over in the phenotype.
recessive
dominant
both
T - tall and t = short
In the Punnett square, what belongs in the missing square?
tt
Tt
TT
B = brown fur b = white fur
In the punnett square, what is the probability for white fur?
0%
25%
50%
75%
Each one of the boxes on the Punnett square represents what probability of an offspring's genotype?
25%
1%
10%
0%
tt
An organism's genetic makeup, or allele combination. The letters we use to show the allele combination.
phenotype
genotype
Humans have how many chromosomes?
23
36
46
53
Meiosis is the process that produces cells with__ the usual number of chromosomes
1/2
all
none
1/4
In humans, meiosis produces cells with__ chromosomes ( 1/2 of original chromosomes)
23
36
46
53
Gametes have half the usual number of__
cells
DNA
Meiosis
chromosomes
Another name for a sex cells, like egg and sperm is a:
What is the gamete that forms in the female reproductive organs?
sperm
cell
egg
chromosome
What is the gamete that forms in the male reproductive organs?
sperm
cell
egg
chromosome
The combination of an egg AND sperm to form a new complete cell is called __
sterilization
separation
division
Fertilization
Chromosome pairs gets SEPARATED in the SECOND division of meiosis
True
False
The COPIED chromosomes are separated in the SECOND division of meiosis
True
False
What does the Acronym DNA stand for
Do Not Abbreviate
Double Nucleic Acids
Deoxyribonucleic Acid
Detection of Nucleic Acids
What does the Acronym RNA stand for
Deoxyribonucleic Acid
Red Nucleic Acids
Ribonucleic Acid
Reaction of Nucleic Acids
RNA is a molecule that uses the information in DNA to connect amino acids into proteins
True
False
How many steps are there to make proteins?
5
3
4
2
The information in DNA is transferred to
DNA
RNA
Protein
None
The information in the RNA molecule is used for
DNA
RNA
Protein
None
At the end of transcription and translation, what type of molecule is made from the information stored in DNA
genetics
DNA
protein
RNA
