Module 4

Question 1

Fungi are classified as:

Answer 1

eukaryotes

Question 2

Eukaryotes have a true _____________ and _____________.

Answer 2

nucleus

organelles

Question 3

The nucleus contains ___________.

Answer 3

DNA

Question 4

The plasma membrane ____________ what enters or leaves the cell.

Answer 4

controls

Question 5

What part of the cell has identifying structures?

Answer 5

Cell surface/ cell membrane

Question 6

Cytoplasm can best be described as:

Answer 6

the fluid with in the cell that everything floats around/ is suspended in.

Question 7

What substance gives the cell its shape?

Answer 7

cytoplasm

Question 8

What organelle conveys genetic information?

Answer 8

nucleus

Question 9

Describe the correct orientation for lipids in the cell membrane:

Answer 9

Hydrophilic heads face out to the intra/extra cellular fluid, the hydrophibic tails face in towards each other.

Question 10

The tail structure associated with the phospholipid is considered to be_______.

Answer 10

hydrophobic

Question 11

A transmembrane protein will come in contact with the ___________ and ___________ fluids.

Answer 11

intracellular

extracellular

Question 12

What is the function of aquaporin?

Answer 12

to let water into a cell

Question 13

Protein channels are ___________ to the substance they allow to pass through the membrane.

Answer 13

specific

Question 14

The source of stored cellular energy is ___________.

Answer 14

ATP

Adenosine Triphosphate

Question 15

The signaling molecule that binds to a receptor is called a ____________.

Answer 15

Ligand

Question 16

The enzyme lactase would be found on the surface of ___________.

Answer 16

intestinal cells

Question 17

What kind of proteins join the plasma membranes to actin microfilaments?

Answer 17

Linkers

Question 18

Another way to describe major histocompatibility compley (MHC) glycoproteins:

Answer 18

Flags that identify cells

the label or baggage tag

Question 19

The random movement of particles in a gas or liquid is an example of:

Answer 19

diffusion

Question 20

Diffusion is best described as _____________ movement of particles in a gas or liquid.

Answer 20

random

Question 21

Facilitated diffusion requires the presence of a _____________ _____________.

Answer 21

carrier protein

Question 22

____________ is the process of diffusion of water across a semi-permeable membrane.

Answer 22

Osmosis

Question 23

The rates of diffusion will __________ as the temperature decreases. Why?

Answer 23

Decrease

decrease in particle movement

Question 24

Hypertonic solution means that the inside environment of the cell has __________ solute concentration.

Answer 24

higher

Question 25

IN the absence of a barrier, scnet molecules will spontaneously move out into room air by __________ diffusion.

Answer 25

simple

Question 26

A gated protein channel that allows ions to flow down their concentration gradient is an example of :

Answer 26

facilitated diffusion

Question 27

Filtration process requires a ____________.

Answer 27

pressure

Question 28

The Na+/K+ pump is an example of _________ transport.

Answer 28

active/ion/electrogenic

Question 29

A clathrin coated pit which collapses into the cell is known as ________________.

Answer 29

a vesicle

Question 30

Cellular eating is an example of __________.

Answer 30

Phagocytosis

Question 31

Cellular drinking is an example of___________.

Answer 31

Pinocytosis

Question 32

The process of transporting waster products out of a cell is an example of _____________.

Answer 32

Exocytosis

Question 33

Exocytosis is a process that ____________ substances from the cells.

Answer 33

transports

Question 34

What is the aqueous part of the cell that has various particles and organelles suspended in it?

Answer 34

Cytoplasm

Question 35

What is the role of organelles?

Answer 35

perform cellular functions

synthesis, structure, motility, storage, digestion and energy production

Question 36

Describe the cytoskeleton.

Answer 36

made up of a number of proteins that form thread or tube like structures 
Three main kinds:
microfilaments
microtubules
intermediate filaments

Question 37

Ribosomes are responsible for ___________ _______________.

Answer 37

Protein synthesis

Question 38

Energy production is performed by the ____________ by breaking down complex molecules.

Answer 38

mitochondria

Question 39

Cyotskeleton has two major functions they include ___________ and ___________.

Answer 39

structure

movement

Question 40

The movement of substances across the cell surfaces is the responsibility of ___________.

Answer 40

lamellipodia

Question 41

Teh flagellum is necessary for cellular ___________.

Answer 41

Movement

Question 42

The difference between the rough endoplasmic reticulum and hte smooth endoplasmic reticulum is their products.
These include _______________ for the rough ER and ______________ for the smooth ER.

Answer 42

glycoproteins, phospholipids

fatty acids. steriods

Question 43

Newly-synthesized proteins arrive at the ______________ face of the Golgi Complex.

Answer 43

Cis

Question 44

The role of the Golgi Complex is to modify _____________.

Answer 44

Proteins

Question 45

Anabolic reactions tend to __________ molecules.

Answer 45

build/ make

Anabolic steroids “build” muscles.

Question 46

Catabolic reactions tend to ____________. molecules.

Answer 46

breakdown