Biology A Notes - Lesson 8

The following statement is false. Select the rewording that makes the statement true. A cell wall is a rigid structure that surrounds the cell membrane of animal cells.

A cell wall is a rigid structure that surrounds the cell membrane of plant cells.

Which sentence correctly describes structures that help cells move? (Select all that apply.)

Cilia use wavelike actions. Flagella use a whiplike motion.

Why do you think muscle cells have more mitochondria than other types of cells?

Consider the following: the items cells need to do work, the role mitochondria play in cells doing work, the amount of work muscle cells do in comparison to other types of cells.

Why do you think plant cells have large vacuoles?

Consider the following: the structural differences between plant and animals cells and how vacuoles might help plants maintain their shape.

Which cell components are responsible for giving the cell its shape and support?

Cytoskeleton and cytoplasm

Determine if the following statement is true or false. If true, choose TRUE. If false, choose the rewording that is true. Plant cells do not have cell membranes; instead, they have cell walls.

False. Plant cells have both cell membranes and cell walls.

Which statement correctly explains why the smooth ER is considered smooth?

It does not have ribosomes attached to its surface.

The description of a cell organelle is given below. - found in plants and plantlike protists - uses energy from the sun - makes sugar from carbon dioxide and water What organelle is being described?

a chloroplast

Which cell parts are found in plant cells but not in animal cells? (Select all that apply.)

cell wall chloroplast

List two cell parts found in only a plant cell.

cell wall and chloroplast

Which structure is located in the nucleus of a cell? (Select all that apply.)

chromatin the nucleolus

Read the description below. What cell part is being described? works like a network to transport cell substances

endoplasmic reticulum

The description of a cell organelle is given below. - found in animal and plant cells - break down sugar - make ATP What organelle is being described?

mitochondria

What cell part is instrumental in making proteins and controlling cell functions?

nucleus

Read the description below. What cell part is being described? makes enzymes and proteins

ribosome

List the similarities and differences between mitochondria and chloroplasts.

similarities—both are organelles; both provide energy for the cell in the form of ATP differences—chloroplasts are in only plant cells, while mitochondria are in both animal and plant cells; chloroplasts capture light energy to produce energy for the cell, while mitochondria break down sugar to do so

Describe the function of the Golgi complex.

sorts proteins into packages to be sent off to the right place

Describe the function of vacuoles.

temporarily store food and other used materials

Describe the function of lysosomes.

use digestive enzymes to break down old cell parts, food, and bacteria and viruses