Brainscape's Knowledge GenomeTM

Browse over 1 million classes created by top students, professors, publishers, and experts.


See full index

Bio 22-Unit 1 > Quiz > Flashcards

Quiz Flashcards

You may prefer our related Brainscape-certified flashcards:
Biology 101 flashcards
1
Q

Communication between the nucleus and cytosol occurs through

A

nuclear pores

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
2
Q

The more metabolically active a cell is, the more ________ it’s membrane contains.

A

protein

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
3
Q

The lumen of a hollow organ such as the stomach is considered to be part of the ________ environment.

A

external

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
4
Q

When cancer develops in one tissue and spreads to another via the blood or the lymph, the cancer is said to have undergone what process?

A

metastasis

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
5
Q

________ proteins attach loosely to other membrane proteins or polar regions of phospholipids.

A

Peripheral

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
6
Q

Which cytoskeletal protein allows for intracellular transport of organelles?

A

Tubulin

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
7
Q

The cellular organelle(s) responsible for packaging and transporting proteins is/are the

A

Golgi complex

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
8
Q

Ribosomal RNA is formed by

A

nucleoli

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
9
Q

? direct the movement of DNA during cell division

A

Centrioles

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
10
Q

consists of a network of intracellular membranes with attached ribosomes

A

rough endoplasmic reticulum

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
11
Q

lysosomes digest ? and ?

A

cellular wastes and bacteria

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
12
Q

use an enzyme to destroy H2O2 that is toxic to the cell

A

Peroxisomes

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
13
Q

What moves the fluid medium across the surface of cells that are not free to move?

A

cilia

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
14
Q

Stratified squamous is a structural epithelium type that would be expected for ________.

A

skin

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
15
Q

Which type of connective tissue is unusual in having relatively little extracellular matrix?

A

Adipose

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
16
Q

Loose connective tissue functions in

A

supporting small glands

17
Q

If an animal cell lacked centrioles, it would not be able to

A

undergo nuclear division

18
Q

The tissue(s) that is/are considered excitable because of the ability to generate electrical signals is/are called

A

muscle tissue and neural tissue

19
Q

What is a nonpenetrating (NP) solute?

A

A solute that will not cross the cell membrane.

20
Q

Which body fluid compartment contains high levels of K+, large anions, and proteins?

A

intracellular fluid only

21
Q

Which body fluid compartment contains higher levels of Na+, Cl-, and HCO3-?

A

both plasma and interstitial fluid

22
Q

Water will always move from ________ areas to ________ areas, if there are no impermeable barriers.

A

hyposmotic, hyperosmotic

23
Q

Which type of molecular movement requires energy from ATP?

A

Active transport

24
Q

Saturation occurs when

A

a group of carrier proteins is operating at its maximum rate.

25
Q

statements about the Na+/K+ pump

A

It is present in neurons. It transports Na+ out of the cell and K+ into the cell. Its activity requires the expenditure of metabolic (cellular) energy.

26
Q

Hyposmotic solutions have lower

A

concentrations of solutes than hyperosmotic solutions.

27
Q

Facilitated diffusion and active transport differ in that

A

ATP is necessary for active transport, but not for facilitated diffusion.

28
Q

According to Fick’s law of diffusion, diffusion rate is proportional to the surface area of the membrane, the concentration gradient, and which other variable?

A

The permeability of the membrane

29
Q

If a 10% sucrose solution is separated from a 20% sucrose solution by a membrane impermeable to sucrose, in which direction will net movement of water occur?

A

from the 10% sucrose solution to the 20% sucrose solution only

30
Q

Membrane protein pores that are essentially always open are called ________ channels.

A

leak or open

31
Q

What process requires clathrin to form coated pits?

A

Receptor-mediated endocytosis

32
Q

Compared to the outside surface, the inside of a resting cell membrane is

A

negatively charged.

33
Q

As the charge on the membrane of a typical neuron approaches 0 from -70 mV, the cell is

A

only depolarizing.

Bio 22-Unit 1 (4 decks)

Brainscape helps you reach your goals faster, through stronger study habits.
© 2024 Bold Learning Solutions. Terms and Conditions