2420 EXAM1 P4

Protists include _________

algae and protozoa

The first primitive eukaryotic cells likely evolved from _________

the last common ancestor

Cilia are structures for motility found primarily in _________

protozoa

There are nine peripheral pairs and one central pair of _________ found inside eukaryotic flagella and cilia.

microtubules

Cell walls are not usually found in _________

protozoa

The eukaryotic cell's glycocalyx is _________

mostly polysaccharide

Which of the following is not a function of the eukaryote glycocalyx?

Movement

Chitin is a chemical component of the cell walls of _________

fungi

The eukaryote cell membrane is composed of _________

All of the choices are correct.(sterols, cholesterol, proteins,phospholipids)

The site for ribosomal RNA synthesis is the _________

nucleolus

When a eukaryotic cell is not undergoing mitosis, the DNA and its associated proteins appear as a visible network of dark fibers called the _________

chromatin

Histones are _________

proteins associated with DNA in the nucleus

The passageways in the nuclear envelope for movement of substances to and from the nucleus and cytoplasm are called nuclear _________

pores

The cell's series of tunnel-like membranes functioning in transport and storage are the _________

endoplasmic reticulum

An organelle that is a stack of flattened, membranous sacs and functions to receive, modify, and package proteins for cell secretion is the _________

Golgi apparatus

Protists with contractile vacuoles _________

use them to expel excess water from the cell

A/An _________blank originates from the Golgi apparatus as one type of vesicle that contains a variety of enzymes for intracellular digestion.

lysosome

Which organelle contains cristae where enzymes and electron carriers for aerobic respiration are found?

Mitochondria

Which organelle is found in algae but not found in protozoa or fungi?

Chloroplast

The size of a eukaryotic cell ribosome is _________

80S