Brainscape's Knowledge GenomeTM

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


See full index

Any Phy (lab) > Response of Paramecium to various stimuli > Flashcards

Response of Paramecium to various stimuli Flashcards

1
Q

Directed behavioral response of a cell or an organism to an external stimulus

A

Taxis

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

Moving towards a stimulus

A

Positive reaction

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

Moving away from a stimulus

A

Negative reaction

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

Is an organism’s response to the stimulus of contact or touch

A

Thigmotaxis

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

Types of taxes in paramecium

A

Thigmotaxis
Chemotaxis
Geotaxis
Phototaxis
Galvanotaxis

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

Type of thigmotactic response exhibited by paramecia

A

Negative thigmotaxis

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

When its _______ end is lightly touched with a fine point, a strong avoiding reaction occurs.

If a paramecium is touched elsewhere, there may be no response

A

Anterior

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

Anterior bumping = reverse direction
Posterior bumping = acceleration forward

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

Reaction to chemicals

A

Chemotaxis

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

Type of chemotaxis paramecia exhibits

A

Negative chemotaxis

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

In weak acids, what type of chemotaxis does paramecia exhibit

A

Positive chemotaxis

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

What is the chemotactic response of paramecia to strong acid?

A

Negative chemotaxis

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

Paramecia survives best in pH levels ____ to ____

A

4.7 to 6.7

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

Chemotactic response of paramecia to salt

A

Negative chemotaxis

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

Chemotactic response of paramecia to base

A

Negative chemotaxis

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

Chemotactic response of paramecia to sugar

A

Negative chemotaxis

17
Q

Reaction to gravity

A

Geotaxis

18
Q

Geotactic response of paramecia

A

Negative geotaxis

19
Q

Refers to the directed movement of an organism in response to light stimuli

A

Phototaxis

20
Q

What type of phototactic response does Paramecium bursaria exhibit

A

Positive phototaxis

21
Q

When the light intensity is suddenly and sharply increased, what type of phototactic response happens

A

Negative phototaxis

22
Q

What are paramecia’s phototactic response to UV rays

A

Negative response

23
Q

Is a directed reaction of an organism to an applied electrical field

A

Galvanotaxis

24
Q

Benefit of light to organisms

A
  1. Food source
  2. Avoiding danger by spoting potential predators’ shadows or outlines cast against a light source
  3. Indicator of environment that is conducive to development and reproduction
  4. Efficient performance of metabolic processes
25
Q

What is the galvanotactic response of paramecia

A

Negative galvanotaxis

Towards a cathode

26
Q

Are paramecia electrically charged?

A

Yes, positively charged

27
Q

Depolarization = ciliary reversal
Hyperpolarization = ciliary augmentation

A
28
Q

The asymmetry in ciliary beatings generates a rotational force, orienting the cell towards the cathode

A

Ludloff phenomenon

29
Q

Galvanotaxis is just a byproduct of the electrophysiological nature of the cell

A

Any Phy (lab) (6 decks)

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