6th Grade Year in Review

What is the name of the English scientist credited for using a microscope to observe cork, discovering small compartments that were later categorized as cells?

• Isaac Newton
• Albert Einstein
• Robert Hooke
• Ivan Pavlov

What is mitosis?

• the process by which plants make their own food
• the process by which cells use oxygen to produce energy from food
• the maintenance of a stable internal environment
• the process in which a cell divides to form two identical nuclei

Cells must be able to perform certain functions in order to survive. Which of the following must all cells do to survive?

• obtain energy
• absorb wastes
• utilize oxygen
• continue growing

If you were to compare the function of a cell to the function of a city, which of the following organelles would be the city’s power plant?

• nucleus
• lysosomes
• mitochondrion
• Golgi apparatus

Which statement best describes the process of mitosis?

• One cell splitting into numerous cells in order to maintain homeostasis.
• One cell splits into two cells, each with half the number of chromosomes as the original cell.
• One cell splits into two cells, each with the same number of chromosomes as the parent cell.
• Two cells join together by sharing genetic material to make a complete set of chromosomes.

Homeostasis is necessary for a cell to survive. What is the definition of homeostasis?

• the elimination of wastes
• the division of cells to form new cells
• the maintenance of a stable internal environment
• the process by which energy from the sun is used to make food

Which is a type of tissue that both plants and animals have?

• nerve
• ground
• protective
• connective

What is the main function of chloroplasts in a plant cell?

• They produce proteins.
• They store water and food.
• They perform photosynthesis.
• They protect cells from thesurrounding environment.

Which of the following describes the cytoskeleton?

• a web of proteins that gives shape and support to the cell
• a membrane-bound organelle that contains genetic material
• the outer covering of a cell that separates it from the environment
• the structure that contains the information about how to make a cell’s proteins

Some dog foods contain corn and wheat that provide the dog with carbohydrates. Why are carbohydrates important to cell processes?

• They make amino acids.
• They form cell membranes.
• They are a source of energy.
• They help chemical processes happen.