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- 1. Multiple Choice
Homeostasis is the maintenance of a constant _ state in a changing environment.
internal
external
- 2. Multiple Choice
In eukaryotic cells, this is the process of cell division that forms two new nuclei, each of which has the same number of chromosomes.
mitosis
meiosis
endocytosis
exocytosis
- 3. Multiple Choice
The process by which a cell membrane surrounds a particle and encloses the particle in a vesicle to bring the particle into the cell
mitosis
meiosis
endocytosis
exocytosis
- 4. Multiple Choice
The movement of particles from regions of higher concentration to regions of lower concentration.
endocytosis
exocytosis
homeostasis
diffusion
- 5. Multiple Choice
The process by which plants, algae, and some bacteria make their own food
photosynthesis
cellular respiration
- 6. Multiple Choice
The process by which cells use oxygen to produce energy from food
photosynthesis
cellular respiration
- 7. Multiple Choice
The matter that you encounter every day, both living and nonliving, is made up of basic particles called
cells
atoms
tissues
- 8. Multiple Choice
A molecule is a group of atoms that are held together by chemical bonds.
True
False
- 9. Multiple Choice
A _ is made of two or more atoms of different elements that are chemically combined.
nucleus
proton
compound
- 10. Multiple Choice
The atomic particles called _ carry a negative charge and circle the nucleus.
protons
neutrons
electrons
- 11. Multiple Choice
Which of the following is a mixture?
water
salt
salad
- 12. Multiple Choice
A(n) _ is made up of two or more different elements that are chemically combined.
atom
mixture
compound
- 13. Multiple Choice
The chemical formula H2O stands for
methane
glucose
water
- 14. Multiple Choice
A molecule made up of smaller molecules called amino acids is a
lipid
protein
carbohydrate
nucleic acids
- 15. Multiple Choice
A molecule that carries information in cells and is made up of smaller molecules called nucleotides is a
lipids
proteins
carbohydrates
nucleic acids
- 16. Multiple Choice
Which of the following are examples of physical changes?
wood burning (combustion)
getting a haircut
ice melting
shredding cheese
- 17. Multiple Choice
During a chemical reaction, matter (mass) can change states (solid, liquid, gas)...
and CAN be created or destroyed.
but can NOT be created or destroyed.
- 18. Multiple Choice
With a compound, the substances ______ be separated with a simple process.
can
might
can not
- 19. Multiple Choice
What is the smallest identifiable unit of an element?
atom
molecule
hydrogen
quark
- 20. Multiple Choice
Which of the following are examples of chemical changes?
baking a cake
peas and carrots
vinegar + baking soda
origami
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