Home
Class 12
BIOLOGY
Study the following statements regarding...

Study the following statements regarding chemiosmotic hypothesis in mitochondria and select the correct ones.
(i) `F_(1)` headpiece contains the site for the synthesis of ATP from `ADP + Pi`.
(ii) `F_(0)` par forms the channel through which protons cross the inner membrane.
(iii) For each ATP produced, `2H^(+)` pass through `F_(0)` from the intermembrane space to the matrix down the electrochemical proton gradient.

A

(i) and (ii) only

B

(ii)and (iii) only

C

(i) and (iii) only

D

(i),(ii) and (iii)

Text Solution

Verified by Experts

The correct Answer is:
D
Promotional Banner

Similar Questions

Explore conceptually related problems

Fill in the blanks by choosing the correct option regarding chemiosmosis. "F_0 of ATPase enzyme forms a/an ____(i)_____ that carries out __(ii)__ diffusion of protons across the membrane. F_1 protrudes on the __(iii)__ surface of the __(iv)__ on the side that faces the __(v)__."

Consider the following statements each with one or two blanks. (i). Towards the centre of the inner concave surface of the kidney is a notch called (1) through which ureters, blood vesels and nerves enter. (ii). The medulla of kidney is divided into a few conical masses called (2) projecting into the (3). (iii). Glomerulus is a tuft of capillaries formed by the (4). artery. Blood from the glomerulus is carried away by an (5) artery. Which one of the following options correctly fills the blanks in any two of the statements?

Consider the following three statements related to the human male reproductive system and select the correct option stating which ones are true (T) and which ones are false (F). (i) Middle piece of spermatozoon is also termed as power house of spermatozoon. (ii) Vas deferens joins a duct from seminal vesicle and form vasa efferentia. (iii) Semen is a collection of secretions from the seminal vesicles, prostate gland and Cowper's glands and sperms from testes.

Study carefully the following statements and select the incorrect ones. When fats are used in respiration, the RQ is more than unity because fats contain more O_(2) and require relatively less amount of O_(2) for oxidation. (ii) The most important energy carrier is ATP. This energy rich compound is mobile and can pass from one cell to another. (iii) Before pyruvic acid enter Krebs' cycle, one of the two carbon atoms of pyruvic acid is reduced to carbon dioxide in the reaction called reductive carboxylation. (iv) A special electron carrier system located in the mitochondrial membrane is called shuttle system. It transfers electron from the hydrogens of cytoplasmic NADH to the mitochondrial electron carriers across the mitochondrial membrane. (v) Zymase is a complex mixture of many enzymes which requires several coenzymes for its action. The enzyme complex-zymase catalyses series of reaction taking place during fermentation leading to the production of ethyl alcohol.

Consider the following four statements and select the correct option stating which ones are true (T) and which ones are false (F). (i) The scrotum acts as a thermoregulator, maintaining the testes at a temperature 2^(@) lower than that of the body (ii) Corona radiate layer of the ovum prevents polyspermy. (iii) Middle part of ear is derived from the endoderms layer. (iv) The hormone, human chorionic gonadotropin facilitates parturition by softening the connective tissue of the public symphysis.

Consider the following four statements and select the correct option stating which ones are true (T) and which ones are false (F). (i) The scrotum acts as a thermoregulator, maintaining the testes at a temperature 2^(@) lower than that of the body (ii) Corona radiate layer of the ovum prevents polyspermy. (iii) Middle part of ear is derived from the endoderms layer. (iv) The hormone, human chorionic gonadotropin facilitates parturition by softening the connective tissue of the public symphysis.

choose correct option for chemiosmotic hypothesis of ATP formation in chloroplast (A).NADP reductase is located on lumen side of the thylakoid membrane (B).proton gradient across the membrane is generated due to pumping of protons as well as phytolysis of water (C). proton gradient breaks when proton move passively through F_0 particle (D). energy is not used to pump protons from stroma side to lumen side

Which of the following statements regarding the structure of contractile proteins are correct ? I. Each actin filaments is made up of two ' F ' actins, which are wound helically around each other. II. Two types of troponins are distributed at regular intervals on the tropomyosin . III. The globular head of meromyosin has binding sites for ATP and troponins. IV myosin is a structure proteins which also has enzymatic activity.

Consider the following four statements (I - iv) and select the correct option stating which ones are true (T) and which ones are false (F). (i) Formation of oxyhaemoglobin occurs on alveolar surface. (ii) During gaseous exchange the gases diffuse from high partial pressure to low partial pressure. (iii) Carbon dioxide cannot be transported with haemoglobin. (iv) Earthworm respires through parapodia.

Consider the following four statements (i) - (iv) and select the correct option stating which ones are true (T) and which ones are false (F) (i) In male cockroach, genital pouch or chamber lies at the hind end of abdomen bounded dorsally by 9^(th) and 10^(th) terga and ventrally by the 9^(th) sternum. (ii) In cockroach, the haemolymph is composed of colourless plasma and haemocytes (iii) In female cockroach each ovary is formed of a group of ten ovarian tubules or overioules, containing a chain of developing ova (iv) In cockroach the nymph grows by moulting about 13 times to reach the adult form.