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Worksheets3rd Marking Period Review - Life Science
Total questions: 60
Worksheet time: 46mins
Name
Class
Date
1.
The quality of air is monitored by the government to determine whether a city needs to take steps to control air pollution. To best measure air quality, the air should be tested ----
a)
several times a day in all kinds of weather
b)
at night when the air is probably less polluted
c)
once a year on a day with very little vehicle traffic
d)
once a day during rush hour when the most cars are on the road
2.
A student recorded the temperature of an aquarium each hour for 8 hours. Which of these will best display the data the student collected?
a)
bar graph
b)
circle graph
c)
picture graph
d)
line graph
3.
Which cell organelle helps break down food molecules to release energy?
a)
endoplasmic reticulum
b)
vacuole
c)
nucleus
d)
mitochondria
4.
What process makes food for plants?
a)
photosynthesis
b)
respiration
c)
reproduction
d)
condensation
5.
The green structure found in plant cells that capture sunlight and use it to produce food for the cells are called?
a)
chloroplasts
b)
vacuoles
c)
ribosomes
d)
cytoplasm
6.
One aspect of the "Greenhouse effect" is the increase in CO2 due to the burning of fossil fuels and destruction of rainforests. What effect might this increase in carbon dioxide in the atmosphere have on the rate of photosynthesis?
a)
The decreased amount of oxygen in the atmosphere should generally cause a decrease in photosynthesis.
b)
The rate of photosynthesis should generally decrease due to the increase of CO2
c)
There probable will be no noticeable effect.
d)
The rate of photosynthesis should generally increase due of the increase of CO2.
7.
Most of the oxygen in the Earth's atmosphere was produced by-
a)
metabolism
b)
photosynthesis
c)
a big explosion
d)
digestion
8.
Simple sugar is made up of carbon, hydrogen, and oxygen. Which formula below is correct?
a)
C2H2O2
b)
C6H12O6
c)
C2H2
d)
CHO12
9.
Other than sunlight, what do plants need to perform photosynthesis?
a)
Carbon dioxide and water
b)
Glucose and oxygen
c)
Carbon dioxide and oxygen
d)
Water and oxygen
10.
Which of the following is produced as a result of photosynthesis?
a)
Carbon dioxide
b)
Heat
c)
Oxygen
d)
Water
11.
When plants undergo photosynthesis, they produce -
a)
nitrogen
b)
carbon dioxide
c)
oxygen
d)
hydrogen
12.
Which cell division is necessary to produce sperm and egg cells?
a)
Mitosis
b)
Sexual reproduction
c)
Asexual reprodution
d)
Meiosis
13.
The terms mitosis and meiosis both refer to which function in a cell?
a)
cellular division
b)
cellular metabolism
c)
cellular energy production
d)
cellular respiration
14.
Meiosis produces -
a)
Sex cells with 1/2 the number of chromosomes as the parent cell
b)
mutations within the cell's DNA
c)
body cells with 1/2 the number of chromosomes as the parent cell
d)
regular body cells
15.
The three main stages of the cell cycle include?
a)
cytokinesis, anaphase, telophase
b)
interphase, prophase, telophase
c)
interphase, mitosis, cytokinesis
d)
mitosis, metaphase, prophase
16.
A dog has 78 chromosomes in each of its body cells. After meiosis, how many chromosomes are in each of the sex cells?
a)
40
b)
78
c)
156
d)
39
17.
A group of the same type of cells that work together for a purpose are called -
a)
a tissue
b)
a unicellular organism
c)
an organ system
d)
an organ
18.
In a eukaryotic cell, where would the DNA be found?
a)
Floating freely in the cytoplasm
b)
Inside the nucleus
c)
Only in the ribosomes
d)
Inside the chloroplasts
19.
Cells undergo a regular sequence of growth and division. What is this process called?
a)
Cellular respiration
b)
Active transport
c)
Photosynthesis
d)
The cell cycle
20.
Which process produces water and carbon dioxide in cells?
a)
respiration
b)
mitosis
c)
meiosis
d)
photosynthesis
21.
Which cell structure is "selectively permeable" allowing certain substances to enter or leave the cell?
a)
Endoplasmic reticulum
b)
Cell membrane
c)
Vacuole
d)
Cytoplasm
22.
Major source of energy for most cells is stored in a sugar molecule called -
a)
sucrose
b)
glucose
c)
fructose
d)
lactose
23.
All of the following scientists contributed to cell theory EXCEPT -
a)
Charles Darwin
b)
Matthias Schleiden
c)
Robert Hooke
d)
Theodor Schwann
24.
What is the independent variable in the following hypothesis?
If I spend more time studying, then my grades in science will improve.
IF ------- THEN ------
If I spend more time studying, then my grades in science will improve.
IF ------- THEN ------
a)
improvement in grades
b)
location for studying science
c)
time spent studying
d)
playing soft music in the background
25.
A plant's green color is due to the presence of which organelle?
a)
vacuole
b)
mitochondrion
c)
chloroplast
d)
nucleus
26.
The jelly-like substance in the cell is called ---
a)
chromosomes
b)
cytoplasm
c)
cytokinesis
d)
lysosomes
27.
One of the major difference between a plant cell and an animal cell is the presence of ----
a)
an endoplasmic reticulum
b)
a nucleus
c)
a cell membrane
d)
a cell wall
28.
Which statement is not part of the cell theory?
a)
Living cells come only from other living cells.
b)
All living things are composed of cells.
c)
Each cell contains a cell membrane, nucleus, and cell wall.
d)
Cells are the smallest structure of living things that can perform the functions necessary for life.
29.
Which cell division is necessary to produce sperm and egg cells?
a)
Mitosis
b)
Meiosis
c)
Sexual reproduction
d)
Asexual reproduction
30.
A dog has 78 chromosomes in each of its body cells. After meiosis, how many chromosomes are in each of the sex cells?
a)
39
b)
40
c)
156
d)
78
31.
Human sweat is the direct result of which life functions?
a)
digestion and disease prevention
b)
respiration and cellular growth
c)
waste removal and temperature control
d)
reproduction and cellular transport
32.
The diffusion of water across the cell membrane is called ---
a)
anaerobic respiration
b)
osmosis
c)
transpiration
d)
meiosis
33.
Which is NOT one of the three domains used in classifying organisms?
a)
Eukarya
b)
Archaea
c)
Chordates
d)
Bacteria
34.
What criteria does the Three Domain System use to classify organisms?
a)
difference in physical features
b)
difference in ribosomal RNA structure
c)
differences in genetic sequencing
d)
different structure of cell types
35.
Nitrogen in the atmosphere is not available. Free nitrogen gas has to be changed into a usable form of nitrogen in a process called --
a)
nitrogen fixation
b)
respiration
c)
precipitation
d)
transpiration
36.
Which of these is the best description of a typical organism in the Plant Kingdom?
a)
is uniicellular
b)
lacks a nucleus
c)
makes its own food
d)
lacks a cell wall
37.
When a third-order consumer dies, it will most like get consumed by ---
a)
foxes and coyotes
b)
bacteria and fungi
c)
mice and rabbits
d)
wolves and bears
38.
Which characteristic is used to classify frogs into a different phylum from squid, snails, and jellyfish?
a)
frogs have backbones
b)
frogs are predators
c)
frogs breathe oxygen
d)
frogs live on land
39.
Plants that have true roots, stems, and leaves that provided support and help circulate water and food throughout the plant are called ----
a)
dicots
b)
monocots
c)
vascular plants
d)
spore producing plants
40.
Which of the following classification groups contains organisms that have the most characteristics in common?
a)
Class
b)
Kingdom
c)
Species
d)
Phylum
41.
A sea urchin has radial symmetry. This means that its body parts are ----
a)
equally arranged around a central point
b)
likely to be reformed if any part of the body is damaged
c)
designed to function in seawater
d)
able to function on land and in the water
42.
The grass is the producer in a food web. Why is the term producer used to describe the first level of the energy pyramid?
a)
grass has the ability to produce glucose
b)
grass has the ability to produce carbon
c)
grass has the ability to produce light energy
d)
grass has the ability to produce water.
43.
Chloroplasts are found only in organisms that are able to ---
a)
generate their own energy
b)
hunt for prey
c)
grow to a larger size
d)
migrate to other ecosystems
44.
What are the reactants (raw materials) needed for photosynthesis to occur?
a)
water and glucose
b)
carbon dioxide and water
c)
glucose and oxygen
d)
light energy and oxygen
45.
If you burn wood in a stove to stay warm in the winter, you are part of what cycle?
a)
nitrogen
b)
water
c)
oxygen
d)
carbon
46.
What is the role of the Orca in the food chain:
Seaweed -> Fishes -> Sea Otter -> Orca
Seaweed -> Fishes -> Sea Otter -> Orca
a)
Second-order consumer
b)
First-order consumer
c)
Producer
d)
Third-order consumer
47.
There are harvesting regulations for many fish species that limit the number and size of the fish that may be kept. What is the most likely reason these limits have been placed on harvesting these fish?
a)
to keep other game fish species populations low
b)
to keep a healthy population of adult fish
c)
to have enough fish for zoo aquariums
d)
to have people spend more money on fishing
48.
Organisms that absorb nutrients from dead plants and animals are called ---
a)
producers
b)
carnivores
c)
herbivores
d)
decomposers
49.
How are humans classified within a food chain?
a)
decomposers
b)
manufacturers
c)
producers
d)
consumers
50.
DNA is essential to living organisms because it ----
a)
can prevent diseases
b)
can break apart
c)
is a spiral helix
d)
carries the genetic code
51.
If the daughter cells are going to have the same genetic information as the original cell, then ---
a)
the original cell must mutate
b)
it requires genetic engineering
c)
natural selection must occur
d)
the DNA must replicate
52.
During human fertilization, an egg and a sperm cell unite. Which structures in these cells carry the genes that will be transferred to the offspring?
a)
vacuoles
b)
ribosomes
c)
chromosomes
d)
cell membranes
53.
The physical expression of a trait in an organism is known as the ----
a)
chromosome
b)
genotype
c)
phenotype
d)
double helix
54.
All of these can be inherited by people EXCEPT --
a)
eye color
b)
blood type
c)
height
d)
language
55.
Which of these has been improved by genetic engineering?
a)
visibility of insects to predators
b)
growth of insects in cornfields
c)
reduced number of pollinating insects
d)
resistance of corn plants to insects
56.
Which animal below, if cut in half, can regenerate the missing parts of its body and become two separate animals with the same set of genes?
a)
fish
b)
snake
c)
salamander
d)
worm
57.
Charles Darwin's 5-year voyage around the world allowed him to observe many plants and animals. He noted that many of the animals on the Galapagos Islands were --
a)
starving to death b/c of water pollution
b)
much smaller and dirtier than all other animals he had observed
c)
similar but not always identical to the animals on the mainland
d)
identical to the animals on the mainland
58.
What is it called when all of the organisms of a species completely die out?
a)
extinction
b)
mutations
c)
adaptation
d)
fossilization
59.
White-footed mice having thicker fur than cactus mice is probably influenced most by the differences in the ----
a)
food that they eat
b)
time of day they are active
c)
environmental climates where they live
d)
amount of predators they encounter
60.
What is cytokinesis?
a)
the movement of spindle fibers in a cell
b)
the division of a cell's cytoplasm
c)
the division of the nuclear membrane
d)
the duplication of DNA
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