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Biology Midterm
Biology Midterm
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Biology Midterm
Flashcards
40 cards
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Practice quiz
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Host live
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Questions
40
Answers
1
What does “selectively permeable” mean?
Anything can move in & out of the cell at any time.
The cell membrane controls what moves in & out of the cell.
2
The smallest particle that can be identified as an element is a(n):
atom
electron
neutron
proton
3
Which type of reaction absorbs energy, many times the reaction feels cold?
Exothermic
Dissociation
Activation
Endothermic
4
Diffusion and osmosis are examples of:
passive transport
pinocytosis
exocytosis
active transport
5
The semi-fluid, watery environment inside the cell is called the
:
cytoskeleton
cell wall
cytoplasm
cell membrane
6
A hypothesis is a:
definite answer to a given problem
testable possible explanation of an observation
concluding statement
proven statement
7
The diffusion of water molecules through a cell membrane is called:
phagocytosis
exocytosis
active transport
osmosis
8
Which of the following regulates what enters and leaves a cell and is selectively permeable?
Nucleolus
Cell membrane
Cell wall
Vacuoles
9
Organic compounds all contain:
sulfur
oxygen
carbon
oxygen
10
Which type of reaction releases energy, many times the reaction is in the form of heat?
Dissociation
Activation
Exothermic
Endothermic
11
Glucose and fructose are examples of:
amino acids
fatty acids
monosaccharides
nucleic acids
12
What is the
general
term used for the structures that perform specialized functions in cells?
Organelles
Nucleolus
Cell membrane
Ribosomes
13
What organelle controls most activities that occur in the cell
Flagellum
Cell wall
Nucleus
Cell membrane
14
Glucose and fructose have the same formula, C
6
H
12
O
6
, but different structures. They are:
isomers
isosceles
isotopes
isobars
15
The nucleus also contains what organelle?
Ribosome
Chloroplasts
Cell wall
Nucleolus
16
Biology is the study of:
Energy
Living things
Weather
Minerals
17
These organelles provide energy for the cell and are called the cell’s “powerhouse”.
Endoplasmic reticulum
Nucleus
Mitochondria
Golgi apparatus
18
Which of the following does a biologist NOT study?
Rocks
Bacteria and disease
Wildlife
Ecology
19
This type of reaction breaks down a polymer into a monomer by adding a H
2
O to “cut” the bond:
acid-base
hydrolysis
condensation
nuclear
20
This aids in protection and support of plants
Organelles
Vacuoles
Cell membrane
Cell wall
21
Cells arise only from?
Existing cells
Nuclei
Cell membranes
Magic
22
Which is the chemical formula for glucose, fructose and galactose?
C4H6O4
C4H2O4
C6H12O6
C6H4O6
23
What is a factor that remain the same for all groups?
Control
Independent variable
Dependent variable
Constant
24
Which are the six most common elements in living things?
C, H, N, O, P, S
V, S, K, B, Y, P
H, S, K, B, C, P
F, Y, K, B, C, P
25
Scientific hypotheses are most often tested by the process of:
experimenting
analyzing data
communicating
inferring
26
All proteins consist of:
lipids
amino acids
polysaccharides
fatty acids
27
The one factor that can be changed in a controlled experiment.
Control group
Independent variable
Constant
Dependent variable
28
Which of the following organelle(s) has its own DNA?
Mitochondria and chloroplasts
Lysosomes
Chloroplasts
Mitochondria
29
Hair, muscle, and fingernails are made primarily of:
lipids
carbohydrates
nucleic acids
proteins
30
A living thing is called a(n):
animal
cell(s)
creature
organism
31
Most biological processes occur at which pH level?
6.5 to 7.5
4.5 to 5.0
7.0 to 8.5
1.0 to 2.0
32
All organisms are composed of:
diatoms
cellulose
peanut butter & jelly
cells
33
Proteins that speed up chemical reactions are called:
substrates
polypeptides
condensers
enzymes
34
These are the sites of protein synthesis. They can be found attached to the ER.
Golgi apparatus
Ribosomes
Vacuoles
Lysosomes
35
What is the term for a chemical that neutralizes small amounts of either an acid or a base?
Buffer
Alkaline
Reactant
Catalyst
36
These are found in plant cells. They contain the green pigment chlorophyll.
Mitochondria
Lysosomes
Chloroplasts
Vacuoles
37
A compound that stores hereditary information is:
protein
ATP
enzyme
DNA
38
Which is a substance that produces OH- ions (hydroxide ions) when dissolved in water?
A salt
An acid
A buffer
A base
39
These store water, waste materials, or food particles in plant cells.
Plastids
Chloroplasts
Vacuoles
Lysosomes
40
What
is required for all life process. Many organisms must take in food.
Diffusion
Estuary
Cytoplasm
Energy
