Answer:
Mitochondrial proteins enter the organelle through channels formed by membrane proteins present in its inner and outer membranes.
Explanation:
All the biological membranes have lipid bilayer with the non-polar core that does not allow entry of charged and large substances. Mitochondrial proteins are synthesized in the cytosol and the unfolded proteins bind to the chaperons that deliver them to the receptors present in the outer mitochondrial membrane.
The receptor moves the protein to the membrane channels formed by integral membrane proteins of inner and outer mitochondrial membranes. The proteins enter the intermembrane space and are targeted to the inner membrane through channels while chaperons are left outside only.
b. Y is positively charged, has a mass of 200 kDa, it does not bind sugars.
c. Z is negatively charged, has a mass of 100 kDa, it does not bind sugars.
What will be the most efficient method to purify protein X from the mixture of X, Y, and Z?
i. washing
ii. drying
iii. ion-exchange chromatography
iv. gel filtration chromatography
v. affinity chromatography
Answer:
iii. ion-exchange chromatography
Explanation:
We have to purify the proteins and column chromatography is used widely for the purification of proteins. Ion-Exchange chromatography is also a type of column chromatography.
When the sugar binding protein X passes through the column, the sugar and proteins binds together by exchanging ions and coagulated out no matter what the nature of charge on proteins...
Answer:
The correct answer is - Venom enzyme inhibitors.
Explanation:
The snake venoms are the complex mixtures of phospholipase A2s, disintegrins, serine proteases, C-lectins, and metalloproteases, and others. The snake venom phospholipase A2s (svPLA2s) enzymes found in most of the families of venomous snakes that cause anticoagulant effects, cardiotoxicity, neurotoxicity, and cytotoxicity, and other effects.
In antivenom, there are Venom enzyme inhibitors other than antibodies that help inneutralizing these enzymes by weakening or inhibiting these toxic actions.
B. All platyhelminthes are parasites of other organisms.
C. Most, if not all, Platyhelminthes lack a coelom.
D. Given the following on the organism:
I. An animal
II. Multicellular
III. has tissues (diploblastic)
IV. Lacks a digestive tract
V. is asymmetrical
This organism could be a member of the Phylum Platyhelminthes
E. Platyhelminthes can not reproduce sexually
Answer:
The options B, C, D and E are correct
B. More of organisms in the phylum platyhelminthes are parasitic in nature.
C. Platyhelminthes are acoelomates and therefore lacks coelom.
D. Phylum Platyhelminthes organisms are multicellular, asymmetrical, lack a digestive tract and are advanced diploblastic.
E. Most Platyhelminthes are hermaphrodites possessing the male and female sex organs.
Option A is wrong because:
A. Leeches are in the Phylum Annelida and are segmented in nature.
They are advanced
As a result of this characteristic, they are able to reproduce asexually and sexually
Answer:A
Explanation:
b. Hypothesees are guesses; theories are correct answers.
c. Hypotheses usually are relatively narrow in scope; theories have broad explanatory power.
d. Theories are proved true; hypotheses are often contradicted by experimental results.
Answer: c. Hypotheses usually are relatively narrow in scope; theories have broad explanatory power.
Explanation:
In scientific decipline, the hypothesis is a tentative statement which is produced by the method of prediction and assumption based on direct observation of the natural phenomena or event. It can be tested by using the experimental methodology.
Theory is a explaination for the cause of natural event or phenomena. This is based on the evidences obtained after experimental trials. A hypothesis can be used for generation of theory. A theory is more explanatory approach because of the details and evidences than hypothesis. Hence, c is the correct option.
Answer:
2
Explanation: