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Flashcards in phys6final3 Deck (15):
1

What is the sequence from amino acid to protein?

Amino acid - peptide - polypeptide - protein

2

What has more body fluid, ICF or ECF?

ICF - 2/3 ECF - 1/3

3

What has more body fluid, ISF or Plasma?

ISF - 80% of ECF

4

Does homeostasis represent equilibrium?

No, it represents steady-state

5

What is the component of the homeostatic system that recognizes slight changes?

Feedforward system

6

What is a successful coping of an organism?

Adaptation

7

What is shorter, adaptation or acclimatization?

Acclimatization as there is no genetic alteration.

8

What part of phospholipids is hydrophilic?

The head (i.e. tails is lipophilic)

9

a)There are three types of membrane junctions.
b)What type do we find the most in the body?
c)Which one consists of several proteins locating a opposing plasma membranes?

a)Desmosomes, gap junction and tight junctions
b)Gap Junctions
c)Desmosomes

10

In terms of cell organelles which one is the site of:
a) Lipid synthesis?
b) Protein synthesis?
c) ATP production?

a) SER
b) RER
c) Mitochondria

11

What is the primary mode of transport of molecules?

Diffusion (high to low - no ATP or carrier)

12

What are the 5 factors that affects the rate of diffusion?

Concentration,
temperature,
size of molecules,
surface area available for diffusion and
the medium (i.e. gas vs liquid)

13

What is the difference between primary and secondary active transport?

Primary used ATP directly while
secondary used energy provided by movementt of another substance

14

What substance is found in greater quantity in a cell?

K+

15

What is the role of endocytosis and exocytosis?

To allow movement of membrane insoluble compounds across the plasma membrane.