7.2 Biology Test

You will NOT find a cell wall in which of these kinda of organisms?

animals

The cell membrane contains channels and pumps that help move materials from one side to the other. What are these channels and pumps made of?

proteins

Which of the following is a function of the cell membrane?

regulates the movement of materials into and out of the cell

Which structure makes proteins using coded instructions that come from the nucleus?

ribosome

Which of the following is a function of the nucleus?

stores DNA

the primary function of the cell wall is to

support and protect the cell

Which of the following is a function of the cytoskeleton?

helps a cell keep its shape

Which sequence correctly traces the path of a protein in the cell?

Ribosome, endoplasmic, reticulum, Golgi apparatus

Which of the following statements about the nucleus in NOT true?

The nucleus is the site of protein assembly

Unlike the cell membrane, the cell wall is

a rigid structure

Which of the following structures serves as the cell's boundary from its environment?

cell membrane

Which organelle would you expect to find in plant cells but not animal cells?

chloroplast

Which organelle breaks down organelles that are no longer useful?

lysosome

Which structures are involved in cell movement?

microtubules and microfilaments

Which of the following is NOT found in the nucleus?

mitochondria

Which organelles are involved in energy conversion?

mitochondria and chloroplasts

Which organelle converts the chemical energy stored in food into compounds that are more convenient for the cell to use?

mitochondrion