Brainscape's Knowledge GenomeTM

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


See full index

Anatomy 111 > Quiz: Cells, Chapter 3 > Flashcards

Quiz: Cells, Chapter 3 Flashcards

1
Q

Membrane junction that serves as a type of anchoring junction…

A

Desmosomes

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

Membrane junction that’s considered a communicating junction…

A

Gap Junctions

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

Membrane junction abundant in electrically excitable tissues…

A

Gap Junctions

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

Membrane junction abundant in tissues subjected to great mechanical stress…

A

Desmosomes

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

Membrane junctions that help prevent molecules from passing through the extracellular space between adjacent cells…

A

Tight Junctions

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

Fluid Mosaic Model:

A

Double phospholipid bilayer with imbedded, dispersed proteins; largely impermeable to water-soluble molecules; consists of phospholipids, cholesterol and glycolipids

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

Vesicular transport process occurring primarily in some white blood cells and macrophages?

A

Phagocytosis

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

If placed in a hypertonic solution, a cell would…

A

Lose water and shrink.

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

If placed in a hypotonic solution, a cell would…

A

Take on water and swell.

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

If placed in an isotonic solution, a cell would…

A

Remain the same.

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

Transport process that is the main mechanism for the movement of most macromolecules by body cells?

A

Receptor-mediated endocytosis

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

Lipid rafts; receptors for hormones; associated with enzymes involved in cell regulation

A

Caveolae

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

Three types of diffusion (passive membrane transport) and their respective substances

A

Simple diffusion: nonpolar and lipid-soluble substances
Facilitated diffusion: glucose, amino acids and ions
Osmosis: water across semipermeable membrane

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

Hormones may enter cells via…

A

Receptor-mediated endocytosis

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

Two types of Active (Membrane) Transport:

A

Primary: utilizes energy in the form of ATP to transport molecules across membrane against their concentration gradient
Secondary: use of NaK exchange pump to indirectly drive the transport of other solutes

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

Examples of second messengers are…

A

Cyclic AMP and Calcium

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
17
Q

Calcium ions are stored in…

A

Sacroplasmic ER (Smooth ER) of Skeletal / Cardiac muscles

18
Q

Microvilli are…

A

Finger-like projections that increase surface area and aid with absorption

19
Q

Responsible for the movement of organelles within cells are…

A

Motor Proteins

20
Q

Organelle(s) consisting of a pinwheel array of 9 triplets of microtubules…

A

Centrioles

21
Q

Detoxify substances by enzymatic action…

A

Peroxisomes

22
Q

Primary component of cytosol…

A

Water

23
Q

The RNA responsible for bringing amino acids to the ribosome for protein formation…

A

tRNA (Translational Ribonucleic Acid)

24
Q

Riboswitches are folded RNAs that act as switches to turn protein synthesis on or off in response to…

A

Changes in the environment

25
Q

Division of the nucleus is called…

A

Mitosis

26
Q

Mitotic Phase: Chromosomes coil in pairs, and the nuclear envelope dissolves…

A

Mitosis, Prophase

27
Q

Mitotic Phase: Centrosomes create mitotic spindle, by which chromosomes are centered…

A

Mitosis, Metaphase

28
Q

Mitotic Phase: Centromeres pull sister chromatids to poles as the cell membrane forms the cleavage furrow…

A

Mitosis, Anaphase

29
Q

Mitotic Phase: Cell membrane completes constriction and nuclear envelopes form around their respective chromatin…

A

Mitosis, Telophase

30
Q

Division of the cytoplasm is called…

A

Cytokinesis

31
Q

A gene is…

A

A segment of DNA that carries the instructions for one polypeptide chain

32
Q

Interphase (G1):

A

Growth 1- Metabolic activity and vigorous growth

33
Q

Interphase (S):

A

Synthesis- DNA Replication

34
Q

Interphase (G2):

A

Growth 2- Preparation for cell division

35
Q

Interphase (G0):

A

State of cells that permanently cease division

36
Q

Transcytosis is…

A

Movement of substances into, across and then out of a cell

37
Q

Vesicular Trafficking is…

A

Movement of substances from one area in the cell to another via vesicals

38
Q

Phagocytosis is…

A

When pseudopods engulf large solid particles and bring them into the cell’s interior

39
Q

Osmolarity is…

A

Total concentration of solute particles in a solution

40
Q

Tonicity is…

A

How a solution affects cell volume

Anatomy 111 (22 decks)

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