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WorksheetsMidterm Review
Total questions: 141
Worksheet time: 5hrs 55mins
Name
Class
Date
1.
A possible explanation to a problem that has not yet been tested.
a)
data
b)
theory
c)
hypothesis
d)
fact
2.
This part of the experiment serves as a basis of comparison; the one variable being tested has been omitted.
a)
experimental group
b)
control group
c)
data
d)
variables
3.
This variable in an experiment is the one being deliberately changed by the scientist.
a)
dependent variable
b)
independent variable
c)
data
d)
control group
4.
What step does every scientific experiment begin with?
a)
hypothesis
b)
question/problem
c)
procedures
d)
conclusion
5.
An experiment is performed on plants to see how different liquids affect plant growth. Each plant in the experiment is given a different liquid; water, apple juice, or milk. Each plant has the same amount of soil, sunlight, and listens to the same music. In this investigation, the independent variable is ...
a)
The type of plant
b)
The amount of sunlight
c)
The type of music
d)
The type of liquid
6.
Testing a hypothesis often involves a(n):
a)
answer
b)
experiment
c)
problem
d)
safety check
7.
A student wants to test the effects of type of exercise on heart rate. What is the dependent variable?
a)
heart rate
b)
type of exercise
c)
amount of exercise
d)
time of day exercise occurs
8.
The summary at the end of an experiment that explains the results.
a)
conclusion
b)
procedures
c)
materials
d)
responding variable
9.
Observations made during an experiment are called:
a)
data
b)
problems
c)
conclusions
d)
questions
10.
Which is NOT a step in the scientific method?
a)
Make observation
b)
Form a theory
c)
Collect data
d)
Form a hypothesis
11.
An explanation that tries to make sense of an observation, but may or may not be true.
a)
Hypothesis
b)
Observation
c)
Inference
12.
A working explanation for an observation or an answer for a problem. Usually contains the words "If, then, and because"
a)
inference
b)
hypothesis
c)
Observation
13.
Which one is the HYPOTHESIS?
a)
My XBox controller isn't working at all.
b)
If I change the battery pack in the controller, then controller will work again.
c)
My XBox controller charger cable looks OK.
14.
Which one is the QUALITATIVE data?
a)
Snake's length: 1.8 meters.
b)
The snake is 180 centimeters long.
c)
The snake's length is above average.
15.
Which is the QUANTITATIVE data?
a)
He lives farther away than you.
b)
His house is red.
c)
He lives about 5 miles away.
16.
In what organelle is the genetic material found inside?
a)
Endoplasmic Reticulum
b)
Golgi Complex
c)
Nucleolus
d)
Nucleus
17.
This organelle is the control center for the cell. Often called "the brain".
a)
Mitochondria
b)
Nucleus
c)
Cell Membrane
d)
Vacuole
18.
The organelle that provides energy for the cell in the form of ATP is called...
a)
Cell Membrane
b)
Cell Wall
c)
Mitochondria
d)
Nucleus
19.
There are two parts that a plant cell has that animal cells don't.
a)
Cell Membrane & Cell Wall
b)
Cell Wall & Chloroplasts
c)
Chloroplasts & Cell Membrane
d)
Chloroplasts & Nucleus
20.
This organelle is a gel like substance that hold everything together.
a)
Cytoplasm
b)
Cell Wall
c)
Cell Membrane
d)
Vacuole
21.
This organelle is the storage center for the cell. The plant has a larger one than the animal cell.
a)
Cell Wall
b)
Chloroplasts
c)
Nucleus
d)
Vacuole
22.
This is an organelle only found in plant cells. It absorbs the sun's energy to help the plant undergo photosynthesis.
a)
Chloroplasts
b)
Cell Wall
c)
Mitochondria
d)
Nucleus
23.
This organelle provides support for the plant cell and is made of cellulose.
a)
Cell Membrane
b)
Cell Wall
c)
Nucleus
d)
Chloroplasts
24.
This organelle controls what comes in and out of the cell. All cells have one.
a)
Nucleus
b)
Mitochondria
c)
Cell Membrane
d)
Cell Wall
25.
What is an example of a single celled organism?
a)
Dog
b)
Cat
c)
Bacteria
d)
Human
26.
Our DNA is kept in the ________ of the cell. This is also another reason why this organelle is so important.
a)
Chloroplasts
b)
Nucleus
c)
Vacuole
d)
Lysosomes
27.
This organelle aids in cellular respiration.
a)
Chloroplasts
b)
Mitochondria
28.
This organelle aids in photosynthesis?
a)
Chloroplasts
b)
Mitochondria
29.
This is a rigid structure that give plant cell protection support and shape; it is made of cellulose
a)
Cell membrane
b)
Cell wall
c)
Vacuole
d)
Endoplasmic reticulum
30.
This contains digestive enzymes. These enzymes can digest materials and cleans the cell
a)
ribosomes
b)
cilia
c)
flagella
d)
lysosomes
31.
A large fluid-filled vesicle located in the cytoplasm of a plant cell; stores water, enzymes, and waste; keeps toxic wastes away from the rest of the cell.
a)
Lysosome
b)
Vacuole
c)
Flagella
d)
Centrioles
32.
This converts solar energy into chemical energy (glucose) during photosynthesis; it contains chlorophyll which makes plants green.
a)
Chloroplast
b)
Cell wall
c)
Smooth ER
d)
Rough ER
33.
Where is DNA stored in a cell?
a)
Lysosomes
b)
Golgi Complex
c)
Ribosomes
d)
Nucleus
34.
All living things are composed of cells.
a)
True
b)
False
35.
All of the following are characteristics of all living things EXCEPT
a)
Respond to stimulus
b)
Grow and develop
c)
maintain homeostasis
d)
Movement
36.
A gazelle running away from a hunting lion is an example of ____________.
a)
homeostasis
b)
responding to stimuli
c)
growing and developing
d)
reproducing
37.
Plants get energy from the sun while animals get energy from
a)
condensation
b)
eating food
c)
photosynthesis
d)
sleeping
38.
During ___________ conditions inside our body are kept stable (the same)
a)
homeopathic
b)
Homo sapian
c)
homeostasis
d)
homologous
39.
What does reproduce mean?
a)
They grow - get larger
b)
They are living things
c)
Organisms make other organisms
40.
Which of the following are characteristics of living things?
a)
food, water, stable internal conditions
b)
reproduce, respond to stimulus, DNA, cells, use energy, grow and develop
c)
grow and develop, water, stable internal conditions, DNA
d)
homeostasis, food, living space
41.
What is a living thing?
a)
reproduction
b)
organism
c)
development
d)
homeostasis
42.
Which of these is not one of the characteristics of living things?
a)
all living things are made of cells
b)
all living things reproduce
c)
all things eat
d)
all things respond to their environment
43.
Multicellular means
a)
made of many cells
b)
made of one kind of cell
c)
made of only one cell
44.
The prefix uni- means
a)
many
b)
the same
c)
one
d)
different
45.
An organism that needs two parents to reproduce is a(an)____________
a)
asexual reproducer
b)
sexual reproducer
c)
non-producer
d)
consumer
46.
The smallest unit of life is a(n)
a)
atom
b)
cell
c)
snail
47.
To _________ is to get larger, while to ____________ is to change.
a)
develop, grow
b)
eat, reproduce
c)
grow, develop
d)
learn, write
48.
The cell membrane is selectively permeable, which means...
a)
All materials can enter and leave the cell
b)
Certain things can enter while others cannot
c)
The cell manually sorts through all materials
d)
Only certain cells can interact with the cell.
49.
Most of the cell membrane is made of...
a)
Lipids
b)
Carbs
c)
Proteins
d)
Nucleic acids
50.
Lipid tails are...
a)
Nonpolar (water fearing)
b)
Polar (water loving)
51.
Lipid heads are...
a)
Polar (water loving)
b)
Nonpolar (water fearing)
52.
When looking at the cell membrane, where are the lipid tails located?
a)
Inner part of the bilayer
b)
Outer part of the bilayer
c)
At the end of the bilayer
d)
Goes through each end of the bilayer
53.
How many layers is the lipid bilayer?
a)
1
b)
2
c)
3
d)
4
54.
Which of the following is responsible for getting complex molecules across the cell membrane?
a)
Lipids
b)
Carbs
c)
Proteins
d)
Nucleic Acids
55.
The function of the plasma membrane is....
a)
regulate what enters and leaves the cell.
b)
fight bacteria and viruses that enter the cell.
c)
make sure each cell reproduces
d)
make sure each cell can move
56.
Movement of particles through the cell membrane
from high to low
from high to low
a)
diffusion
b)
photosynthesis
c)
mitochandria
57.
Against the concentration gradient
low to high
uses energy/ATP
low to high
uses energy/ATP
a)
facilitated diffusion
b)
osmosis
c)
active transport
58.
Particles are too large to enter the membrane.
Need help from channel proteins.
No energy
Need help from channel proteins.
No energy
a)
active transport
b)
passive transport
c)
facilitated diffusion
59.
Diffusion of water across a cell membrane
high to low.
high to low.
a)
osmosis
b)
active transport
c)
protein channel
60.
Movement of large substances outside of cell.
Uses energy.
Uses energy.
a)
exocytosis
b)
endocytosis
c)
photosynthesis
61.
Particles move from high to low.
Doesn't need energy
Doesn't need energy
a)
passive transport
b)
facilitated transport
c)
active transport
62.
The substance that is dissolving in a solution.
a)
solute
b)
solution
c)
solvent
63.
High concentration of water and a low concentration of solute.
cell will explode
cell will explode
a)
hypotonic
b)
hypertonic
c)
isotonic
64.
Low concentration of water and a high concentration of solute.
Cell will shrink
Cell will shrink
a)
hypotonic
b)
hypertonic
c)
isotonic
65.
Equal concentration of water and solute.
cell will stay the same
cell will stay the same
a)
hypotonic
b)
hypertonic
c)
isotonic
66.
When both inside and outside of a cell have the same amount of water it is said that the cell has reached a state of
a)
Osmosis
b)
Diffusion
c)
Equilibrium
67.
Ideally, your cells should be in a(n) _______ solution
a)
Hypertonic
b)
Hypotonic
c)
Isotonic
d)
Cola
68.
An animal cell placed in a hypertonic (salty) solution will
a)
Shrink
b)
Swell
c)
Stay the same
69.
An autotroph is an organism that can ?
a)
make its own food.
b)
grow its own food
c)
kill and eat other organisms.
d)
play ball with you.
70.
Photosynthesis is the process by which plants use light to turn CO2 and H2O into ?
a)
glucose and water
b)
oxygen and water
c)
glucose and oxygen
d)
energy
71.
The raw ingredients (reactants) of photosynthesis are sunlight along with ?
a)
CO2 and H20
b)
CO2 AND C6H12O6
c)
oxygen and water
d)
oxygen and CO2
72.
What is the pigment molecule that absorbs the sunlight ?
a)
hemoglobin
b)
chlorophyll
c)
ATP
d)
ethyl alcohol
73.
What is the organelle that contains the chlorophyll ?
a)
mitochondria
b)
ribosome
c)
chloroplast
d)
nucleus
74.
What is the "waste" gas produced during photosynthesis?
a)
oxygen
b)
nitrogen
c)
helium
d)
hydrogen
75.
What is the end product of photosynthesis ?
a)
carbon dioxide
b)
water
c)
glucose
d)
methane
76.
Plants need ________ for photosynthesis
a)
oxygen
b)
soil
c)
carbon dioxide
d)
sugar
77.
What are the products of photosynthesis?
a)
water and carbon dioxide
b)
oxygen and glucose
c)
oxygen and carbon dioxide
d)
oxygen and water
78.
Which gas is removed from the atmosphere during photosynthesis?
a)
hydrogen
b)
oxygen
c)
nitrogen
d)
carbon dioxide
79.
Cellular respiration takes place in the
a)
nucleus
b)
cytoplasm
c)
ribosomes
d)
mitochondria
80.
Which is not a waste product of cellular respiration?
a)
Water
b)
Heat
c)
Carbon Dioxide
d)
Oxygen
81.
This means that oxygen is not needed
a)
anaerobic
b)
aerobic
82.
This means that oxygen is needed
a)
anaerobic
b)
aerobic
83.
Which are the reactants for cellular respiration?
a)
glucose & ATP
b)
glucose & carbon dioxide & water
c)
oxygen & glucose
d)
ATP & oxygen
84.
What kind of things perform cellular respiration?
a)
living things only
b)
nonliving things only
c)
living and nonliving things
85.
Why do we eat food?
a)
to provide energy/fuel
b)
to eliminate waste products
c)
to prevent diseases
d)
to kill pathogens
86.
Breaking down glucose to release ATP energy is known as
a)
Photosynthesis
b)
Respiration
c)
Mitosis
d)
Fission
87.
Which of the following is not needed for photosynthesis to occur?
a)
sunlight
b)
carbon dioxide
c)
water
d)
oxygen
88.
Nuclear membrane forms around chromosomes and begins to separate.
a)
Anaphase
b)
Telophase
89.
a)
Prophase
b)
Interphase
c)
Anaphase
d)
Telophase
90.
a)
Anaphase
b)
Cytokinesis
c)
Telophase
d)
Metaphase
91.
a)
Cytokinesis
b)
Interphase
c)
Anaphase
d)
Metaphase
92.
a)
Anaphase
b)
Cytonkinesis
c)
Interphase
d)
Prophase
93.
a)
Cytokinesis
b)
Anaphase
c)
Telophase
d)
Prophase
94.
Chromosomes condense from long stands into rod like structures.
a)
Prophase
b)
Interphase
95.
Which is Metaphase?
a)
A
b)
E
c)
C
d)
F
96.
Why would it be important to replicate DNA before a cell divides in mitosis or meiosis?
a)
In order for genetic information to be transferred into daughter cells.
b)
In order for the cell to be able to increase in size.
c)
In order for the DNA to be contained in the nucleus.
d)
In order for the cell to re-order the DNA sequencing in the new cells.
97.
In mitosis, the two resulting cells are
a)
different from the starting cell and identical to each other.
b)
different from the starting cell and different from each other.
c)
identical to the starting cell and different from each other.
d)
identical to the starting cell and identical to each other.
98.
How many chromosomes do humans have?
a)
46
b)
21
c)
10
99.
The time between cell divisions in the life cycle of the cell is called
a)
anaphase
b)
interphase
c)
prophase
d)
metaphase
100.
The purpose of meiosis is to form ________ cells.
a)
body
b)
sex
c)
somatic
d)
brain
101.
A cat has a total of 38 chromosomes in its body cells. How many in its sex cells?
a)
38
b)
19
c)
76
d)
10
102.
Which of these cells would undergo meiosis?
a)
skin cells
b)
liver cells
c)
brain cells
d)
sperm cells
103.
The chromosomes that pair up during meiosis, are called __________ chromosomes.
a)
homozygous
b)
asexual
c)
homologous
d)
genes
104.
Crossing over help promote ?
a)
male genotype
b)
genetic variation
c)
DNA replication
d)
mitosis
105.
With mitosis you get ___, _________ cells, but with meiosis, you get ___, ____________.
a)
4 different, 2 identical
b)
r identical, 2 different
c)
2 different, 4 identical
d)
2 identical, 4 different
106.
The macromolecule protein is made up of combination of these monomers
a)
amino acids
b)
fatty acids
c)
nucleic acids
d)
strong acids
107.
Which macromolecule is made of simple and complex sugars?
a)
lipids
b)
proteins
c)
carbohydrates
d)
nucleic acids
108.
Which are enzymes?
a)
simple carbohydrates
b)
proteins that speed up chemical reactions
c)
lipids that make up the cell membrane
d)
a building block of DNA
109.
This is one job proteins do NOT have in the body
a)
storing genetic information
b)
structure
c)
speed up chemical reactions
d)
act as hormones and antibodies
110.
DNA and RNA are examples of...
a)
proteins
b)
nucleic acids
c)
carbohydrates
d)
lipids
111.
True or false: You can get proteins from meats.
a)
True
b)
False
112.
Another name for fats and oils
a)
proteins
b)
sugar
c)
lipids
d)
nucleic acids
113.
Waxes, oils and fats are examples of ______.
a)
Carbohydrates
b)
Lipids
c)
Proteins
d)
Nucleic Acids
114.
Which is an example of a carbohydrate?
a)
wax
b)
bread
c)
DNA
d)
red meat
115.
Which is an example of a protein?
a)
oil
b)
sugar
c)
DNA
d)
red meat
116.
What type of macromolecule are enzymes?
a)
Protein
b)
Carbohydrate
c)
Lipid
d)
Nucleic Acid
117.
The main function of carbohydrates is ____.
a)
to build muscle
b)
for hair growth
c)
ifor ntelligence
d)
to provide energy
118.
This is the scientific word for Fat.
a)
Monomer
b)
Nucleotide
c)
Protein
d)
Lipid
119.
What is the function of nucleic acids?
a)
Stores energy
b)
Stores genetic information
c)
Movement
d)
Physical structure
120.
Which of the following binds to an active site of an enzyme?
a)
Substrate
b)
Product
c)
Codon
d)
None of these
121.
An enzyme speeds up a chemical reaction in the cell, but can only be used once.
a)
True
b)
False
122.
Enzymes speed up a chemical reaction by...
a)
destroying products
b)
lowering activation energy
c)
increasing activation energy
d)
allowing reactions to process at their own speed
123.
Which substrate would this enzyme catalyze?
a)
Δ
b)
σ
c)
∅
d)
μ
124.
An enzyme and its substrates are often referred to a ________________________ shape.
a)
misfit
b)
fan & air
c)
balloon & string
d)
lock & key
125.
Any substrate that is acted upon by an enzyme is called a(n)
a)
substrate
b)
reactant
c)
nucleic acid
d)
both a & b
126.
Based on the graph, what temperature does this enzyme work best?
a)
30* C
b)
15* C
c)
47* C
d)
40* C
127.
In the diagram, what is letter E?
a)
substrate
b)
enzyme-substrate complex
c)
product
d)
active site
128.
Which base is normally used in the synthesis of RNA but not in DNA?
a)
adenine
b)
uracil
c)
cytosine
d)
guanine
129.
Which of the following best describes a DNA molecule?
a)
double helix
b)
contains ribose
c)
made of amino acids
d)
contains Uracil
130.
Which sequence of DNA bases would pair with this partial strand
ATG TGA CAG
ATG TGA CAG
a)
ATG TGA CAG
b)
TAC ACT GTC
c)
GTA AGT GAC
d)
CAT TCA CTG
131.
In a molecule of double-stranded DNA, the amount of Adenine present is always equal to the amount of
a)
cytosine
b)
guanine
c)
thymine
d)
uracil
132.
Adenine bonds with ______________.
a)
Guanine
b)
Thymine
c)
Cytosine
d)
Adenine
133.
Guanine bonds with ______________.
a)
Adenine
b)
Guanine
c)
Cytosine
d)
Thymine
134.
What are the 4 nitrogen bases?
a)
adenine, thymine, cytoplasm, and guanine
b)
adenine, thymine cytosine, and guanine
c)
adenine, thymine, cytosine, and gylcerol
d)
adenine, thymine, cytosine, and glucose
135.
Which 2 molecules form the sides (backbone) of the DNA ladder?
a)
deoxyribose and adenine
b)
deoxyribose and a hydrogen bond
c)
deoxyribose and the nucleus
d)
deoxyribose and phosphate
136.
DNA codes for...
a)
cholesterol
b)
proteins
c)
fatty acids
d)
a sandwich
137.
Which process is shown?
a)
diffusion
b)
repiration
c)
recombination
d)
translation
138.
What molecules do both DNA and RNA contain?
a)
uracil
b)
nucleotides
c)
thymine
d)
deoxyribose
139.
DNA sequence is ACAGTGC. How would this be coded on mRNA?
a)
TGTCACG
b)
UGUCACG
c)
GUGACAU
d)
CACUGUA
140.
The diagram shows the process of
a)
Transcription
b)
Translation
c)
Replication
d)
Mitosis
141.
What nitrogen base is in DNA but NOT RNA?
a)
uracil
b)
thymine
c)
guanine
d)
adenine
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