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10th grade midterm review 1 Flashcards | StudBud
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10th grade midterm review 1
10th grade midterm review 1
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1
Chlorophyll is green because
it transmits light and causes an optical illusion.
it reflects green wavelengths of light.
it absorbs blue and yellow wavelengths, which make green.
it absorbs green wavelengths of light.
2
When is energy released?
When phosphate groups in ATP is broken.
When ATP molecules are broken
When the carbon in ATP is formed
When ATP molecules are formed
3
C6 H12O6 + 6O2 + ADP + P = 6CO2 + 6 H2O + MOLECULE A What is Molecule A?
NADPH
NADH
ADP
ATP
4
What type of molecules are these?
Nucleic Acids
Lipids
Glucose
Carbohydrates
5
What is essential for a cell to perform all the tasks necessary for life.
ATP
NADH+
NADPH
NADH
6
Are the building blocks of polypeptides and proteins.
Glucose
Amino Acids
Phospholipids
Sugars
7
A tendency to maintain internal stability
Homeostasis
Hypothalamus
Evolution
Biology
8
The bond formed when two atoms share a pair of electrons is called a
nonpolar bond.
water bond.
hydrogen bond.
covalent bond.
9
A single organism may contain
one enzyme that is specific to photosynthesis
thousands of different enzymes, each specific to differ chemical reactions
one enzyme that plays a role in thousands of different chemical reactions.
Approx 100 enzymes with different chemical reactions
10
Fermentation happens in the absence of
Water
Carbon Dioxide
Oxygen
Sunlight
11
A very active cell should contain many
Ribosomes
Chromosomes
Chloroplasts
Mitochondria
12
The smallest particle into which a substance can be divided and still retain all its chemical properties
molecule
atom
electron
compound
13
Natural selection could not occur without
genetic variation in species.
gradual warming of the Earth.
stable environments.
competition for unlimited resources.
14
What provides protons and electrons for some reactions in photosynthesis?
NADP
NADPH
NADP+
NADPH+
15
What do all living things have?
Flagella
Cellular Organization
Cell walls
Plastids
16
Darwin drew ideas for his theory from observations of organisms on
the Hawaiian Islands.
the Galápagos Islands.
the Samoan Islands.
Manhattan Island.
17
How would a scientist share research results?
By screaming on the corner and hoping people will listen
By publishing it in Womans World magazine
By publishing it in a newspaper
By publishing in scientific journals and scientific meetings
18
Products of the light reactions of photosynthesis that provide energy for the Calvin cycle
oxygen and ATP.
ATP and NADPH.
oxygen and NADPH.
water and oxygen.
19
Species of finches Darwin observed differed in the shape of their beaks. Darwin believed all of these species
had a common ancestor.
had descended from similar birds in Africa.
ate the same diet.
had migrated from Africa.
20
DNA and RNA are
Nucleoids
Nucleic Acids
Polysaccharides
Polypeptides
21
how many fatty acids does a phospholipid molecule contain?
3
4
2
7
22
The process of losing electrons
Photosynthesis
Reduction
Electrolysis
Oxidation
23
What is the negatively charged particle in an atom?
Neutron
Proton
Electron
Nucleus
24
In photosystem I
electrons start in the krebs cycle
electrons are at the end of the electron transport chain
electrons are replaced from photosystem II
electrons are given to photosystem II
25
The process by which a population becomes better suited to its environment is known as
Variation
Acclimation
Accommodation
Adaptation
26
C6 H12O6 + 6O2 + ADP + P = 6CO2 + 6 H2O + MOLECULE A This process starts in the cytoplasm and ends in the
Cytoplasm
Rough ER
Smooth ER
Mitochondria
27
At the thylakoid membrane,
energy from electrons is used to make glucose.
electrons return to their original energy levels.
electrons are pushed out of the thylakoid.
the thylakoid bursts, releasing energy.
28
Which organic molecule is most closely related to nucleic acids
Nucleotides
Sugars
Polypeptides
Amino Acids
29
What is the ultimate source of energy on earth?
The Sun
Oxygen
Humans
Carbon Dioxide
30
The process of gaining electrons
Electrolysis
Oxidation
Photosynthesis
Reduction
31
What element is in every organic compound?
N
O
Ca
C
32
These cells have no nucleus
Plant Cells
Eukaryotes
Animal Cells
Prokaryotes
33
An explanation or expectation based on a body of facts that have been repeatedly confirmed
Observation
Theory
Control
Hypothesis
34
What organelle generates adenosine triphosphate (ATP), the primary energy currency of the cell
Rough ER
Nucleus
Cytosol
Mitochondria
35
A molecule in which one end of the molecule is slightly positive, while the other end is slightly negative
Nonpolar molecule
Polar molecule
Macromolecule
Diatomic Molecule
36
What happens when chlorophyll absorbs light?
The photon causes an electron in the chlorophyll to become “depressed.”
It shares electrons from other molecules
The photon causes an electron in the chlorophyll to become “excited.”
It attracts electrons from other molecules
37
Carbon Dioxide is the source of Oxygen during
Glycolysis
Aerobic respiration
Photosynthesis
Cellular respiration
38
Which is a carbohydrate?
Cheese
Wax
Sucrose
Beef
39
S
imple cells that do not have a true nucleus or other cell organelles
Choloroplast
Eukaryote
Mitochondria
Prokaryote
40
Which of the following is most likely a vestigial structure?
the beak of a finch
the human tailbone
a fossil of a snail
flower color
41
A pure substance that cannot be broken down into any other substance
nucleus
element
cell
molecule
42
The beak of a bird and the beak of a giant squid evolved independently and serve the same function. The beaks are
divergent structures.
analogous structures.
hybrid structures.
homologous structures.
43
Physical process that refers to the net movement of molecules from a region of high concentration to low concentration
Balance
Diffusion
Osmosis
Differentiation
44
Biology is the study of ????
Chemistry
Mycology
Space
Life
45
A proposed explanation made on the basis of limited evidence as a starting point for further investigation:
Control
Hypothesis
Theory
Observation
