CameraIcon

SearchIcon

MyQuestionIcon

2

You visited us 2 times! Enjoying our articles? Unlock Full Access!

Structure of Chloroplasts

The cyanide i...

Question

The cyanide ions are toxic because they bind almost irreversibly to the $F e (I I I)$ ion in:

A

cytochrome oxidase.

No worries! We‘ve got your back. Try BYJU‘S free classes today!

B

thyroid.

No worries! We‘ve got your back. Try BYJU‘S free classes today!

C

haemoglobin.

No worries! We‘ve got your back. Try BYJU‘S free classes today!

D

cytochrome C.

Right on! Give the BNAT exam to get a 100% scholarship for BYJUS courses

Open in App

Solution

The correct option is B cytochrome C.
The enzyme cytochrome C oxidase, or Complex IV is a large transmembrane protein complex found in bacteria and the mitochondrion of eukaryotes. It is the last enzyme in the respiratory electron transport chain of mitochondria or bacteria located in the mitochondrial or bacterial membrane.
This transfer of electrons, which is necessary for respiration, is blocked when cyanide ion attaches to the enzyme.

Suggest Corrections

thumbs-up

0

Similar questions

Q. The cyanide ion,

C N^{-}

N_{2}

are isoelectronic, but in contrast to

C N^{-}, N_{2}

is chemically inert, because of :

Q. Cyanide causes irreversible inhibition of cytochrome oxidase. This is because it

Q. The possible resource of phosphorus ions and nitrogen ions in soil generally get depleted, because they are usually found as

Q. The cyanide ion,

C N^{-}

N_{2}

are isoelectronic. But in contrast to

C N^{-}, N_{2}

is chemically insert because of absence of bond polarity.
If true enter 1, else enter 0.

Q. Fill in the blanks:
(a) The metal plate through which current enters into an electrolyte is called _________. It has _________ of electrons.
(b) The metal plate through which _________ leaves from an electrolyte is called _________. It has ________ of electrons.
(c) The ions which discharge on the negative electrode during electrolysis _________ electrons. Thus, the ions are said to be _________.
(d) The ions which discharge on the positive electrode during electrolysis __________ electrons. Thus, the ions are said to be ________.
(e) Hydrogen and metallic ions are _________ because they __________ electrons.
(f) Non-metallic ions are __________ because they _________ electrons.

View More

Join BYJU'S Learning Program

similar_icon

Related Videos

lock

Plastids

BIOLOGY

Watch in App

explore_more_icon

Explore more

Structure of Chloroplasts

Standard XII Biology

Join BYJU'S Learning Program

CrossIcon