The number of subatomic particles in an atom of Br is: A) 80e, 80p, 35n B) 35e, 80p, 35n C) 35e, 35p, 35n D) 35e, 35p, 45n
D
An atom of titanium has a mass number of 48 and an atomic number of 22. A second titanium atom could have the following number of subatomic particles: A) 26 p, 22 e, 22 n B) 21 p, 21 e, 26 n C) 22 p, 22 e, 24 n D) 22 p, 26 e, 22 n
B
Nitrogen is an example of what type of pure substance? compound or element?
element
Which type of reproduction, sexual or asexual, involves 2 parents?
Sexual
Liquid to solid
freezing
How many chromosomes are in diploid human cell?
46
Salt water is an example of what type of mixture? Homogenous or heterogenous?
Homogenous
What is the correct number of neutrons in an atom of Cr? A) 30 B) 54 C) 24 D) 36
C
What does the mitochondria do in a cell?
Provides the cell with energy
No definite volume or shape - is this a solid, liquid, or gas?
Gas
What phase of mitosis is this?
metaphase
During anaphase:
A) the cytoplasm divides
B) the chromosomes move to opposite ends of the cell
C) vitamin B is synthesized
D) strands of DNA unravel
B
An adult cat's skin cells have 38 chromosomes. The diploid number of chromosomes is:
A) 38
B) 76
C) 19
D) the same number of chromosomes in a cat's sperm cells
A
The melting point of gallium is what type of characteristic? A) elemental property B) chemical property C) physical property D) magnetic property
C
A nail rusting is an example of a chemical or physical change?
chemical
What type of vegetative propagation is this an example of?
grafting
True or false: when you are done with a chemical, you should immediately pour it down the sink.
False
Definite volume and shape - is this a solid, liquid, or gas?
solid
What does the cytoplasm in a cell do?
Controls materials that enter and exit the cell
What does this symbol represent?
Exploding bomb or explosion hazard
A heterogeneous mixture has
A) only one component
B) at least two components which look like one substance
C) at least two visible components
D) a uniform distribution of a single phase
B
In which of the following cells does mitosis not take place?A) sperm B) skin C) liver D) bone
A
What is the name given to the stage of the cell cycle in which the cytoplasm divides?
A) Prophase
B) Interphase
C) Cytokinesis
D) Mitosis
C
Liquid to gas
Evaporation
Alcohol evaporates is an example of a chemical or physical change?
physical
Elements in Group 18 on the periodic table are known as the A) halogens B) alkaline earth metals C) transitional metals D) noble gases
D
During meiosis, the pairing of homologous chromosomes, occurs during
A) prophase I
B) prophase II
C) anaphase I
D) anaphase II
A
Name the part of the cell that contains DNA
nucleus
Particles move the fastest and have a lot of space between them - solid, liquid, gas?
gas
Which of the following terms best represents a disease-causing organism? A.pathogen B. antigen C. antibody D. plaque
A. Pathogen
Breaking glass. Physical or chemical change?
physical
What is the main difference between eukaryotic cells and prokaryotic cells?
A eukaryotic cell has a nucleus, a prokaryotic cell does not
Asexual reproduction differs from sexual reproduction because it:
A) does not use all the cells of the body
B) uses only gamete cells
C) does not involve an exchange of genetic material
D) involves an exchange of genetic material
C
Water is an example of which type of pure substance? Element or compound?
Compound
Name a part of the cell that's only found in plant cells (2 possible)
chloroplast or cell wall
Solid to gas
sublimation
Sexual reproduction A) involves diploid gametes joining to form a zygote. B) produces offspring that are genetically different from both parents. C) Involves the production of gametes by mitosis
B
Milk is an example of what type of mixture? Homogenous or heterogenous?
Homogenous
Injected weakened particles to help defend against infection. What is this describing?
Vaccine
Blow drying wet hair is an example of chemical or physical change?
physical
Particles are very close together and only vibrate in place - solid, liquid, gas
Solid
Jello is an example of what type of mixture? Homogenous or heterogenous?
Homogenous
What is required for photosynthesis? (3)
Sun, water, carbon dioxide
What does this symbol represent?
corrosive material
In a periodic table, vertical columns are called: A) rows B) periods C) groups D) noble gases
C
Definite volume and holds shape of container it is in - is this a solid, liquid, or gas?
Liquid
What type of asexual reproduction is this?
budding
The symbol "K" represents what element?
Potassium
Group 1 on the periodic table (excluding hydrogen) is known as the A) alkali metals B) alkaline earth metals C) transitional metals D) noble gases
A
What kind of vegetative propagation is this?
simple layering
Fertilization results in:
A) a reduction division
B) haploid ova
C) a diploid zygote
D) a monoploid zygote
C
In meiosis, cytokinesis occurs
A) once
B) twice
C) three times
D) four times
B
Gas to liquid
condensation
What does this symbol represent?
Biohazardous material
Baking soda and vinegar make carbon dioxide. Physical or chemical change?
chemical
What is the correct order of mitosis (just 4 cell division phases?)
Prophase, Metaphase, Anaphase, Telophase
What is the element found in the periodic table in group 4 and period 6? A) hafnium B) selenium C) gadolinium D) chromium
A
Food is digested. Is this an example of a chemical or physical change?
chemical
A horizontal row on the periodic table is called A) a period B) a group C) a family D) a series
A
True or false: It is okay to smell a substance as long as the teacher gives permission.
True
Oxygen is an example of what type of pure substance? Element or compound?
Element
Which element is not found in group 12 of the periodic table? A) Zn B) Hg C) Ga D) Cd
C) Ga
What is produced during cellular respiration? (3)
Energy + Carbon Dioxide + Water
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