NEW
Font size
S
M
L
XL
WorksheetsFirst Semester Exam
Total questions: 50
Worksheet time: 25mins
Name
Class
Date
1.
Which of the following is NOT a characteristic of all living things?
a)
growth and development
b)
ability to move
c)
response to the environment
d)
ability to reproduce
2.
Cellular respiration is aerobic process because it requires
a)
light
b)
exercise
c)
oxygen
d)
glucose
3.
Which of these species might be classified as a pioneer species?
a)
pine tree
b)
oak tree
c)
lichen
d)
grass
4.
Plants are
a)
Primary producers
b)
Primary consumers
c)
Herbivores
d)
Omnivores
5.
Which two biomes have the least precipitation?
a)
Tropical rain forest and temperate grassland
b)
Tropical savanna and tropical dry forest
c)
Tundra and desert
d)
Tiger and temperate forest
6.
If you stir salt into boiling water, you produce a
a)
Mixture called a suspension
b)
Mixture called a solution
c)
A solution and suspension
d)
A mixture only
7.
Which organelle breaks down organelles that are no longer useful?
a)
Golgie apparatus
b)
Lysosome
c)
nucleus
d)
Mitochondrion
8.
The products of photosynthesis are the
a)
Products of cellular respiration
b)
Reactants of cellular respiration
c)
products of glycolysis
d)
Reactants of fermentation
9.
Which of the following is not a monomer?
a)
A glucose molecule
b)
An amino acid
c)
nucleotide
d)
A protein
10.
Which of the following organisms does not require sunlight to live?
a)
chemosynthetic bacteria
b)
Algae
c)
trees
d)
photosynthetic bacteria
11.
which part of the water cycle is a biological process?
a)
Transpiration
b)
Run off
c)
Precipitation
d)
Condensation
12.
How do organisms get the energy they need?
a)
By burning food molecules and releasing the energy as heat
b)
Breathing oxygen into the lungs and combining it with carbon dioxide
c)
By breaking down food molecules and capturing their energy gradually
d)
by using the sun's energy to break down food molecules and form chemicals
13.
What is a product of the Calvin cycle?
a)
Oxygen gas
b)
ATP
c)
high energy sugars
d)
Carbon dioxide gas
14.
Which of the following structures separates the cell from its environment?
a)
Mitochondrion
b)
Cell membrane
c)
Chloroplast
d)
Channel protein
15.
A bird stalks, kills, and eats an insect. Which pair of ecological terms describe the bird?
a)
herbivore, decomposer
b)
producer, heterotroph
c)
predator, consumer
d)
Autotroph, herbivore
16.
What type of ion forms when an atom loses electrons?
a)
Neutral
b)
Positive
c)
Radioactive
17.
A word that means the same thing as consumer is
a)
Producer
b)
Autotrophic
c)
Heterotroph
d)
Carbohydrate
18.
Which biome has very low temperatures, little precipitation, and permafrost?
a)
Desert
b)
temperate forest
c)
tundra
d)
Tropical forest
19.
Which organelles converts the chemical energy stored in food into compounds the cell can use?
a)
Chloroplast
b)
golgi apparatus
c)
Mitochondria
20.
The repeated movement of water between Earth's surface and the atmosphere is called
a)
The water cycle
b)
The condensation cycle
c)
Evaporation
21.
The particles that make up atoms are
a)
Protons, neutrons, isotopes
b)
Neutrons, isotopes, electrons
c)
protons, negatives, ions
d)
Protons, neutrons, electrons
22.
Which of the following is the correct sequence of events in cellular respiration?
a)
Glycolysis, fermentation, Krebs cycle
b)
Krebs cycle, electron transport, glycolysis
c)
Glycolysis, Krebs cycle, electron transport
d)
Krebs cycle, glycolysis, electron transport
23.
Which process describes nitrogen fixation?
a)
Animals eat plants containing nitrogen and return it to the soil through urination
b)
Bacteria take nitrogen from the air and converted to form usable by plants
c)
Plants take nitrogen from the air and stored in the roots
24.
Which of the following correctly sequences the steps of the scientific method?
a)
Question, observe, explain, design experiment, collect data, findings
b)
observe, question, make a testable explanation, experiment, collect and analyze data, state findings
c)
question, test, answer
d)
Design and conduct investigation, former hypothesis, collect data, state findings
25.
which structure in the cell modifies, packages, and ships products?
a)
E R
b)
Nucleus
c)
golgi apparatus
d)
Mitochondrion
26.
Which animal would be found in a biome that has cold to moderate winters, warm summers, fertile soils and is home to a variety of vegetation such as coniferous trees, deciduous trees, flowering shrubs and ferns?
a)
White tailed deer
b)
Polar bear
c)
Caribou
27.
If an atom contains three protons, four neutrons, and three electrons its mass number is
a)
Three
b)
Four
c)
seven
d)
eleven
28.
Cellular respiration releases energy by breaking down
a)
Food molecules
b)
ATP
c)
Water
29.
Cougars are predators that often eat weekend or diseased animals. This is a description of the
a)
Habitat
b)
Community
c)
Niche
d)
Principal
30.
Which organelles are in plant cells but not in animal cells?
a)
Mitochondrion
b)
ribosome
c)
chloroplast
d)
E R
31.
Which of the following makes up a molecule of water
a)
One atom of hydrogen and one atom of oxygen
b)
One atom of sodium and one atom of chlorine
c)
Two atoms of hydrogen and one atom of oxygen
32.
Which structures are involved in cell movement?
a)
Cytoplasm & ribosomes
b)
Nucleolus & nucleus
c)
microtubules & microfilaments
d)
Chromosomes & ribosomes
33.
The basic unit of length in the metric system is the
a)
Gram
b)
Liter
c)
square
d)
Meter
34.
During a controlled experiment, a scientist isolates and tests
a)
A conclusion
b)
A mass of information
c)
A single variable
d)
A control group
35.
A substance with a pH of 6 is called
a)
An acid
b)
A base
c)
A solution
36.
What animals eat both producers and consumers
a)
Herbivores
b)
Omnivores
c)
Chemotrophs
d)
Autotrophs
37.
Which of the following is not found in the nucleus?
a)
Mitochondria
b)
Nucleolus
c)
Chromosomes
d)
DNA
38.
Which of the following descriptions about the organization of an ecosystem is correct?
a)
Communities make up species, which make up populations
b)
Populations make up species, which make up communities
c)
Species make up populations, which make up communities
39.
Each of the following is an abiotic factor in the environment except
a)
Plant life
b)
Soil type
c)
rainfall
d)
Temperature
40.
Which structure makes proteins?
a)
Golgi apparatus
b)
Mitochondria
c)
nucleus
d)
Ribosomes
41.
The work of scientist usually begins with
a)
Testing a hypothesis
b)
Careful observation
c)
Drawing conclusions
42.
Who used a compound microscope to see chambers within Cork and named them "cells"?
a)
Anton van Leeuwenhoek
b)
Robert Hook
c)
Matthias Schleidin
d)
Rudolph Virchow
43.
Which of the following is a function of the cytoskeleton?
a)
Helps a cell keep its shape
b)
Contains DNA
c)
Helps make proteins
44.
Numerical data gathered in an experiment is called
a)
Quantitative
b)
Qualitative
c)
Scientific
45.
Which of the following is a function of the nucleus?
a)
Stores DNA
b)
Stores sugar
c)
makesproteins
d)
Packages proteins
46.
Which of the following is not a principle of the cell theory?
a)
Cells are the basic unit of life
b)
All living things are made of cells
c)
Very few cells reproduce
d)
Cells come from pre-existing cells
47.
Which of the following organisms are prokaryotes?
a)
Plants
b)
Animals
c)
bacteria
d)
Fungi
48.
Plants gather the sun's energy with light absorbing molecules called
a)
Pigments
b)
Thylakoid's
c)
Glucose
49.
Which element is found in proteins but not carbohydrates or lipids?
a)
Carbon
b)
Nitrogen
c)
Hydrogen
50.
Unlike the cell membrane, the cell wall is
a)
Found in all organisms
b)
Composed of a lipid bilayer
c)
only in bacteria
d)
A very rigid structure
Reset
