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Worksheets7th Grade Semester Exam Review
Total questions: 106
Worksheet time: 54mins
Name
Class
Date
1.
Which of the following is NOT a multicellular organism?
a)
grass
b)
amoeba
c)
mosquito
d)
worm
2.
Which type of cell from through meiosis?
a)
sex cells
b)
body cells
c)
zygote cells
d)
epithelial cells
3.
the study of _______ is called genetics.
a)
heredity
b)
dominance
c)
pea plants
d)
mutations
4.
Chromosome pairs separate in this phase of meiosis.
a)
prophase I
b)
metaphase I
c)
anaphase I
d)
telophase I
5.
which of the following occurs during prophase?
a)
the chromosomes line up in the center of the cell
b)
the sister chromatids separate
c)
two new identical nuclei are formed
d)
the nucleolus disappears and the nuclear membrane breaks down
6.
What is the cell called that results from fertilization?
a)
egg
b)
sperm
c)
zygote
d)
diploid
7.
This is the phase of meiosis in which 2 daughter cells form
a)
prophase I
b)
metaphase I
c)
anaphaseI
d)
telophaseI
8.
photosynthesis occurs at the cell level. which organelle is necessary for photosynthesis?
a)
Golgi apparatus
b)
chloroplasts
c)
mitochondrion
d)
rough ER
9.
what are the 4 major types of tissue found in most animals?
a)
muscle, vascular, nervous, and epithelial
b)
muscle, connective, nervous, and dermal
c)
muscle, connective, nervous, and epithelial
d)
muscle, vascular, ground, and dermal
10.
other creatures that commonly reproduce through regeneration include all EXCEPT _____.
a)
hydra
b)
sea urchins
c)
sponges
d)
sea cucumbers
11.
choose the type of tissue that causes movement in most animals.
a)
muscle
b)
connective
c)
nervous
d)
epithelial
12.
usually, the largest organelle in a cell is the ____________.
a)
chromatin
b)
nucleus
c)
vacuole
d)
lysosome
13.
which of the following is NOT a result of cell division?
a)
reproduction
b)
growth
c)
nutrition
d)
repair
14.
which substance makes up the macromolecule carbohydrate?
a)
amino acids
b)
VITAMINS
c)
nucleotides
d)
sugar
15.
which form of energy is necessary in photosynthesis?
a)
ATP
b)
lactic acid
c)
glycolysis
d)
light
16.
What are the differences between a prokaryote and a eukaryote?
a)
the prokaryote does not have a membrane bound nucleus, but the eukaryote does
b)
the prokaryote has more cell structures than the eukaryote
c)
the prokaryote is larger
d)
the eukaryote has several cells
17.
Gregor Mendel studied heredity using ______ plants.
a)
rose
b)
pea
c)
maize
d)
tundra
18.
Which of the following is the scientific name for a bear?
a)
brown bear
b)
Ursus arctos
c)
grizzly bear
d)
silvertip bear
19.
a five-armed sea star is cut into 5 equal pieces. How many sea stars will regenerate?
a)
3
b)
4
c)
5
d)
6
20.
During which stage of interphase do cells store energy for use in the mitotic phase?
a)
S
b)
G1
c)
G2
d)
S2
21.
a true-breeding purple plant and a true-breeding white plant cross-pollinate. The offspring will be __________.
a)
all purple
b)
1/2 purple, 1/2 white
c)
75% purple, 25% white
d)
75% white, 25%
22.
How are sex cells produced?
a)
haploid
b)
diploid
c)
meiosis
d)
mitosis
23.
how long does it take a cell to complete the cell cycle?
a)
8 minutes
b)
1 year
c)
24 hours
d)
the time it takes depends on the type of cell that is dividing
24.
All of the following are principles of the cell theory EXCEPT _____________.
a)
the cells is the smallest unit of life
b)
water is the main ingredient in every cell
c)
all new cells come from preexisting cells
d)
all living things are made of one or more cells
25.
hydra reproduce by ____________
a)
budding
b)
regeneration
c)
fission
d)
sexual reproduction
26.
which substance is broken down during telophase?
a)
the chromosomes line up in the center of the cell
b)
the sister chromatids
c)
two new identical nuclei are formed
d)
the nucleolus disappears and the nuclear membrane breaks down
27.
a cell that has two of every kind of chromosomes is _________
a)
hapliod
b)
diploid
c)
an egg
d)
a sperm
28.
which is the phase of meiosis in which spindle fiber form.
a)
prophase I
b)
metaphase I
c)
anaphase I
d)
telophase I
29.
What is the function of a lysosome?
a)
food storage
b)
preparing proteins
c)
making food
d)
break down material
30.
what is the shortest phase of mitosis?
a)
prophase
b)
metaphase
c)
anaphase
d)
telophase
31.
which of the following is NOT involved in photosynthesis or respiration?
a)
water
b)
CO2
c)
chlorophyll
d)
cytokinins
32.
which of the following functions can a unicellular organism perform?
a)
eat
b)
eliminate
c)
reproduce
d)
all of the above
33.
what are the 3 major types of tissue found in plants?
a)
vascular, dermal, ground
b)
vascular, dermal, connective
c)
connective, dermal, ground
d)
connective, epithelial, ground
34.
in which phase of meiosis does the membrane surrounding the nucleus break apart.
a)
prophase I
b)
metaphase I
c)
anaphase I
d)
telophase I
35.
which choice is NOT a process of the cell cycle?
a)
growth
b)
division
c)
development
d)
equilibrium
36.
which type of cell divides by the cell membrane pinching together until the 2 cells split apart?
a)
animal
b)
plant
c)
mineral
d)
chromosomal
37.
a genetic factor that blocks another genetic factor is called a(n) _______________
a)
genetic trait
b)
heredity trait
c)
recessive trait
d)
dominant trait
38.
which two macromolecules offer energy storage to the cell?
a)
lipids and nucleic acids
b)
proteins and carbohydrates
c)
nucleic acids and proteins
d)
lipids and carbohydrates
39.
of the following, which would NOT be grouped with the others?
a)
blue jeans
b)
shorts
c)
sweat pants
d)
sweatshirt
40.
how many cells are produced by mitosis and cell division?
a)
0
b)
1
c)
2
d)
3
41.
if you know an insect is a butterfly but don't know its scientific name, it would be best to use a(n) _________ to find out
a)
dictionary
b)
encyclopedia
c)
biology textbook
d)
dichotomous key
42.
in _______ a body part regrows and may form a new organism.
a)
fission
b)
budding
c)
regeneration
d)
sexual reproduction
43.
active transport occur when ___ is used to move substances through a membrane.
a)
osmosis
b)
energy
c)
diffusions
d)
chlorophyll
44.
connective tissue serves which purpose in a multicellular organism ?
a)
transports water and nutrients
b)
provides structure and support
c)
carries messages to and from the brain
d)
forms the protective outer layer of skin
45.
which types of fermentation is illustrated below?
glucose------> ATP+ CO2 + Alcohol
a)
lactic acid fermentation
b)
alcohol fermentation
c)
photosynthesis
d)
cellular respiration
46.
respiration is the process in which organisms breaks down food to release _______.
a)
energy
b)
nutrients
c)
sugar
d)
oxygen
47.
which of the following occurs during metaphase?
a)
the chromosomes line up in the center of the cells
b)
the sister chromatids separate
c)
2 new identical nuclei are formed
d)
the nucleolus disappears and the nuclear membrane breaks down
48.
a __________ key uses pairs of descriptions to help the user identify an organism.
a)
dichotomous
b)
cladogram
c)
hierarchical
d)
patriarchal
49.
What is the main difference between a prokaryotic ell and an eukaryotic cell?
a)
only prokaryotic cells have vacuoles
b)
eukaryotic cells are smaller than prokaryotic cells
c)
prokaryotic cells have many organelles, each with their own speciallized function
d)
only eukaryotic cells have genetic material surrounded by a membrane
50.
What is the first thing that happens when a new cell is produced?
a)
it gets larger
b)
it gets smaller
c)
it divides again
d)
it rests
51.
in which type of plant tissue does photosynthesis take place?
a)
dermal
b)
nervous
c)
vascular
d)
ground
52.
The classification system most commonly used today separates organisms into _____ kingdoms.
a)
3
b)
4
c)
5
d)
6
53.
If a cell has 18 chromatids, how many duplicated chromosomes does it have?
a)
18
b)
9
c)
36
d)
6
54.
What is the main difference between active transport and passive transport?
a)
During active transport the water inside the cell is used to transport substances throughout the cell. Passive transport uses the cell’s cytoplasm to move substances around the cell.
b)
Passive transport moves substances throughout the cell without using the cell’s energy and active transport moves substances using the cell’s energy.
c)
Active transport moves substances from higher concentrations to lower concentrations and passive transport moves substances from lower concentrations to higher concentrations.
d)
Passive transport moves substances that are too large to get through the cell membrane by forming a vesicle inside the cell and active transport forms the vesicle on the outside of the cell.
55.
What is the bodily purpose of epithelial tissue?
a)
transports water and nutrients
b)
carries messages to and from the brain
c)
provides structure and support
d)
forms the protective outer layer of skin
56.
Human beings belong in the which of the following Kingdoms?
a)
Protista
b)
Fungi
c)
Plantae
d)
Animalia
57.
Two horses mate and produce a foal. This is an example of _____.
a)
growth
b)
development
c)
homeostasis
d)
reproduction
58.
Growth of many-celled organisms is mostly due to an increase in the ____ of cells.
a)
size
b)
protons
c)
number
d)
all of the above
59.
Which substance is released as a waste product during photosynthesis?
a)
glucose
b)
carbon dioxide
c)
cytoplasm
d)
oxygen
60.
Which of the following is NOT a disadvantage of asexual reproduction
a)
do not need a mate
b)
little genetic variation
c)
mutations can occur
d)
all susceptible to same disease
61.
Which best explains the function of a cell membrane?
a)
offers protection from the outside environment
b)
provides a framework to help the cell move
c)
transforms energy in the cell into ATP
d)
removes viruses from inside the cell
62.
58. A recessive trait is observed when _____ recessive genetic factors are present in offspring.
a)
0
b)
1
c)
2
d)
3
63.
Animal cells do NOT have ____.
a)
centrioles
b)
centromeres
c)
cell plates/walls
d)
cytoplasm
64.
Dichotomous keys are divided into steps with ____ descriptions at each step.
a)
2
b)
3
c)
5
d)
4
65.
During the S stage of interphase, pairs of identical chromosomes are held together by which structure?
a)
chromatid
b)
centromere
c)
connectroid
d)
centromatid
66.
Materials enter and leave the cell through openings in its ____.
a)
organelles
b)
DNA
c)
membrane
d)
chromatin
67.
A tadpole turns into a frog over its lifetime. This is called _____.
a)
growth
b)
development
c)
homeostasis
d)
reproduction
68.
What are the two major organ systems of plants?
a)
the shoot system and the flower system
b)
the shoot system and the root system
c)
the flower system and the root system
d)
the flower system and the leaf system
69.
During periods of strenuous activity, muscle cells run low on ____.
a)
oxygen
b)
glucose
c)
carbon dioxide
d)
lactic acid
70.
If a cell has 22 duplicated chromosomes, how many chromatids does it have?
a)
22
b)
44
c)
11
d)
88
71.
Which of these have prokaryotic cells?
a)
snails
b)
frogs
c)
bacteria
d)
food
72.
Which of the following organisms do NOT have genetic variation?
a)
humans
b)
dogs
c)
trees
d)
hydra
73.
Which of the following is NOT a method your body uses to regulate homeostasis?
a)
taking a cool shower
b)
sweating
c)
shivering
d)
change the flow of blood
74.
What does muscle tissue do?
a)
carries messages to and from the brain
b)
provides structure and support
c)
forms the protective outer layer of skin
d)
causes movement
75.
Which organelle prepares proteins into vesicles to transport from one area of a cell to another
a)
Golgi apparatus
b)
chloroplasts
c)
mitochondrion
d)
rough endoplasmic reticulum
76.
A form of asexual reproduction used by many unicellular eukaryotes is _____.
a)
meiosis
b)
fission
c)
mitotic cell division
d)
regeneration
77.
Fission begins in prokaryote when the DNA molecule is _______.
a)
destroyed
b)
copied
c)
split
d)
enhanced
78.
During which stage of interphase do cells copy their DNA?
a)
S stage
b)
G1 stage
c)
G2 stage
d)
metastage
79.
a cladogram is similar to which of the following?
a)
chronolgy tree
b)
concept we
c)
family tree
d)
grouping set
80.
A plant growing toward light is an example of _____.
a)
internal stimulus
b)
external stimulus
c)
homeostasis
d)
reproduction
81.
What does nervous tissue do?
a)
provides structure and support
b)
forms the protective outer layer of skin
c)
carries messages to and from the brain
d)
causes movement
82.
what is the difference between rough endoplasmic reticulum (ER) and smooth endoplasmic reticulum (ER)?
a)
Rough ER has lysosomes covering the organelle while smooth ER does not.
b)
Rough ER has ribosomes covering the organelle while smooth ER does not.
c)
Smooth ER releases energy while rough ER absorbs energy.
d)
Rough ER is found on the inside of the cell while smooth ER is found on the outside of the cell.
83.
Which of the following is more general in terms of classifying an organism?
a)
family
b)
order
c)
species
d)
class
84.
What scientist did not contribute to the development of the cell theory?
a)
Theodor Schwann
b)
Matthias Schleiden
c)
Robert Hooke
d)
James Watson
85.
Mendel tested _____ plants.
a)
2
b)
5
c)
100
d)
100s
86.
The passive transport of water through a membrane is ____.
a)
osmosis
b)
fermentation
c)
equilibrium
d)
active transport
87.
Photosynthesis is the process in which plants use energy from light to produce ____.
a)
new cells
b)
organelles
c)
food
d)
none of the above
88.
. Haploid numbers of chromosomes are usually found in the ____ of an organism
a)
tissues
b)
body cells
c)
sex cells
d)
zygotes
89.
What is the process called by which cells coming from the same cell become different types of cells?
a)
cell migration
b)
cell mutation
c)
cell differentiation
d)
cell alteration
90.
after meiosis, how many chromosomes does each cell have compared to the original cell?
a)
same number
b)
1/2 as many
c)
twice as many
d)
3 times as many
91.
The first name of the organism's scientific name is the ____.
a)
species
b)
family
c)
genus
d)
order
92.
How many groups did Aristotle use to classify organisms?
a)
2
b)
3
c)
4
d)
5
93.
What type of field guide would be the easiest and most efficient to use?
a)
encyclopedia with phylum names only
b)
dichotomous key
c)
Aristotle system
d)
encyclopedia with species names only
94.
One cell that undergoes meiosis will yield how many independent cells?
a)
1
b)
2
c)
3
d)
4
95.
A new organism that results from budding that remains attached to its parent starts to form a _______.
a)
colony
b)
house
c)
family
d)
group
96.
Which of the following is NOT a part of sexual reproduction?
a)
one parent organism
b)
two parent organism
c)
meiosis
d)
fertilization
97.
Which function do the lipids in a cell control?
a)
a protective membrane
b)
hold genetic information
c)
transport
d)
communication
98.
Where is cloning performed?
a)
in the barn
b)
in the house
c)
in a flower bed
d)
in a laboratory
99.
How many times does a reproductive cell divide during meiosis?
a)
1
b)
2
c)
3
d)
4
100.
Parents pass their traits down to their offspring through their __________.
a)
daughter cells
b)
son cells
c)
body cells
d)
reproductive cells
101.
Which is used to make proteins in the cell?
a)
water
b)
RNA
c)
DNA
d)
lipids
102.
Each human skin cell has ____ pairs of chromosomes
a)
13
b)
18
c)
23
d)
46
103.
How quickly can some bacteria divide?
a)
every 5 minutes
b)
every 10 minutes
c)
every 15 minutes
d)
every 20 minutes
104.
The green color of tree leaves is due to green light energy reflected from ____.
a)
auxins
b)
carbon dioxide
c)
chlorophyll
d)
gibberellins
105.
Which of the following is NOT a trait that Mendel recorded?
a)
flower color
b)
seed color
c)
seed shape
d)
length of leaf
106.
The female sex cell is called a(n) _____.
a)
egg
b)
sperm
c)
zygote
d)
diploid
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