Biology Chapter 3

Which type(s) of cells may possess a cell wall?

Archaea, Bacteria, and Eukaryotes

Which organelle is assembled in the nucleolus of the nucleus?

Ribosome

The substance consisting of DNA and associated proteins in a eukaryotic cell's nucleus is called _________. The substance consisting of DNA and associated proteins in a eukaryotic cell's nucleus is called __________.

Blank 1: chromatin or chromatins Blank 2: chromosomes or chromosome

Which of these materials are found in the cell walls of fungi?

Chitin

peptidoglycan

only bacteria only

The double membrane that surrounds the nucleus is called the nuclear

envelope

membrane bound nucleus and organelles

eukaryotes only

The semifluid material enclosed by the nuclear envelope is called

nucleoplasm.

The cell organelle that contains the genetic material in a eukaryotic cell is called the

nucleus

What is the function of the centriole?

Microtubule assembly and disassembly

Select all the organisms that are composed of eukaryotic cells.

Mushrooms Protists Humans Oak trees

What would be the result if a cell was unable to form a spindle apparatus?

The cell would be unable to separate its chromosomes during cell division

Which of the following are components of the endomembrane system?

The nuclear envelope Golgi apparatus Endoplasmic reticulum Vesicles

The nucleoplasm has a different fluid composition than the cytoplasm of a cell.

True

True or false: Both plant and animal cells contain organelles.

True

plasma membrane

archaea, bacteria, and eukaryotes

The material that is common to the cell walls of plants and algae is called

cellulose

The organelles that function in protein synthesis are called

ribosomes.

Select the structures that are found in plant cells.

Central vacuole Plasma membrane Cell wall Chloroplast Mitochondrion

Select all of the following structures that are found in animal cells.

Centrioles Nucleoli Plasma membrane Mitochondria

Select the following which relate to the role of microtubules in a eukaryotic cell.

Cilia and flagella Organelle movement Cell shape

Which of these cells have a membrane bound nucleus?

Eukaryotes only

Humans, oak trees and protists are all composed of which type of cell?

Eukaryotic Cells

Plant cells do not have centrosomes.

False

True or false: Ribosomes may occur singly in the cytoplasm or in groups called Golgi bodies.

False

True or false: The main characteristic that distinguishes a eukaryotic cell from a prokaryotic cell is a cell wall.

False

Which of the following are functions of intermediate filaments?

Formation of cell-to-cell junctions Support the plasma membrane Support the nuclear envelope

Chromatin, which consists of DNA and associated proteins, undergoes coiling and condenses during cell division to form

chromosomes

The semifluid medium within a cell is called the

cytoplasm or cytosol

The nuclear envelope and endoplasmic reticulum are components of the

endomembrane system.

A darkly staining region that may appear within the nucleus on an electron micrograph is called a(n) ______.This is the location of rRNA production.

nucleolus

A nuclear pore is best described as a(n):

opening in the nuclear envelope that permits the passage of molecules into and out of the nucleus

The small structures within the cytoplasm of a eukaryotic cell that perform specific functions are called

organelles or organelle

A group of ribosomes that are attached to a single mRNA are called a

polyribosome, polysome, polyribosomes, or polysomes