Eukaryotic cell structure

Question 1

Movement of molecules through the plasma membrane is _______

Answer 1

selective

Question 2

Simple diffusion happens through

Answer 2

the lipid bilayer

Question 3

facilitated diffusion happens through

Answer 3

non specific or specific transporters

Question 4

Ribosomes

Answer 4

links amino acids together to make protein

Question 5

eukaryotic cells contain a ______ & _______

Answer 5

true nucleus & organelles

Question 6

a true nucleus consists of:

Answer 6

nucleoplasm, chromosomes (embedded in the nucleoplasm), a nuclear membrane, and nucleolus

Question 7

Organelles:

Answer 7

a complex system of membranes and membrane-bound structures

Question 8

Nucleolus-

Answer 8

ribosome production

Question 9

Genes:

Answer 9

discrete units of DNA that code for a functional product (single brick in the wall)

Question 10

Chromosomes are…

Answer 10

double-stranded, linear DNA molecules bound with proteins (humans have 23 pairs)

Question 11

Genome:

Answer 11

complete set of an organisms genes

Question 12

Cytoplasm

Answer 12

a semifluid, gelatinous, nutrient matrix
Filled with filaments called microtubules and actin

Contains storage granules and a variety of organelles
each organelle has a specific function

Question 13

Endoplasmic Reticulum

Answer 13

ER-lipid production

RER – site of protein production

Question 14

Golgi apparatus is responsible for

Answer 14

protein sorting and vesicle production

Question 15

Lysosomes/peroxisomes-

Answer 15

contain toxic compounds that the cell can use to fight off infections or break down internal material.

Originate in the Golgi complex

Question 16

Cytoskeleton

Answer 16

A system of fibers throughout the cytoplasm

Question 17

3 types of Cytoskeleton fibers

Answer 17

microtubules, microfilaments, and intermediate filaments

Question 18

Microtubules

Answer 18

Cytoskeleton fiber that maintain shape, form mitotic spindle (cell division) , vesicle movement

Question 19

Microfilaments-

Answer 19

Cytoskeleton fiber for cell movement, contraction

Question 20

intermediate filaments

Answer 20

Cytoskeleton fiber responsible for cell rigidity

Question 21

the nucleus houses the ____ and contains _____ and ____

Answer 21

DNA/ nuclear membrane/ nuclear pores

Question 22

Flagella in eukaryotic cell is composed of ____

Answer 22

microtubules

Question 23

Flagella in eukaryotic cell is endoflagella? T or F?

Answer 23

T = inside

Question 24

Cilia:

Answer 24

shorter, thinner, and more numerous than flagella, and described as being “hair-like.”

Question 25

How are eukaryotic plasma membrane phospholipids different from prokaryotes?

Answer 25

Eukaryotic plasma membrane phospholipids contain cholesterol making the membrane rigid.

Question 26

The cholesterol in Eukaryotic plasma membrane phospholipids may _____…..

Answer 26

group certain proteins together in “lipid rafts”

Question 27

T or F
cytoplasm is where MOST METABOLIC REACTIONS OCCUR

Answer 27

True