Chemistry of Life/Homeostasis & Cell Processes

Homeostasis is the maintenance of a constant _ state in a changing environment.

• internal

• external

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

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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

The movement of particles from regions of higher concentration to regions of lower concentration.

• endocytosis

• exocytosis

• homeostasis

• diffusion

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The process by which plants, algae, and some bacteria make their own food

• photosynthesis

• cellular respiration

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The process by which cells use oxygen to produce energy from food

• photosynthesis

• cellular respiration

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The matter that you encounter every day, both living and nonliving, is made up of basic particles called

• cells

• atoms

• tissues

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A molecule is a group of atoms that are held together by chemical bonds.

• True

• False

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NGSS.MS-PS1-1

A _ is made of two or more atoms of different elements that are chemically combined.

• nucleus

• proton

• compound

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NGSS.MS-PS1-1

The atomic particles called _ carry a negative charge and circle the nucleus.

• protons

• neutrons

• electrons