Lumen is the space
(A) Inside chloroplast having 70 s ribosomes (B) Enclosed by membrane of thylakoid (C) In between two membranes of chloroplast (D) Inside the Mitochondria

During photorespiration, the oxygen consuming reaction (s) occur in (a) Grana of chloroplasts and peroxisomes (b) Stroma of chloroplasts (c) Stroma of chloroplasts and mitochondria (d) Stroma of chloroplasts and peroxisomes

Which is correct option amongst the following statements ? a. Nuclear membrane, chloroplasts, mitochondria, microtubules and pili are absent in prokaryotic cells b. Nuclear membrane, chloroplasts, mitochondria, microtubules and pili are present in eukaryotic cells c. Ribosomes are 70S in prokaryotic cells, chloroplasts and mitochondria. They are 80S in animal cells.

Give scientific terms for the following : (a) Cluster of ribosomes in cytoplasm. (b) Infoldings of inner membrane of mitochondria. (c) Stacks of thylakoids in chloroplast. (d) Stalked particles on the inner membrance of mitochondria.

Bacteria do not possess : (a) cell wall (b) ribosome (c) mitochondria (d) plasma membrane

Consider the following statements A. The chloroplast pigments are fat soluble. B. All the pigments of chloroplast are located in the thylakoid membranes. Which of the statements given above is/are correct?

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

Assertion : Chloroplasta occur inside the leaves mostly in mesophyll cells along their walls. Reason: The membrane system of chloroplast is responsible for trapping the light energy and also for the synthesis of ATP and NADPH.

Consider the following statement: A.The layer of bundle sheath cells in the leaves of C_(4) plants lacks intercellular spaces- B. The bundle sheath cells in the leaves of C_(4) plants lack mitochondria and peroxisomes.- C. The bundle sheath cells of C_(4) plants have large number of chloroplasts and thick walls.- Neither C_(4) plants nor CAM plants have grana in their chloroplasts and thick walls. - Which of the statements given above is/are correct?

If |z|lt1, then 1+2z lies (A) on or inside circle having center at origin and radius 2 (B) outside the circle having center at origin and radius 2 (C) inside the circle having center at (1,0) and radius 2 (D) outside the circle having center at (1,0) and radius 2.

Identify the components labelled A, B, C and D in the diagram below from the list (i) to (vii) given along with Components : (i) Cristae of mitochondria (ii) Inner membrane of mitochondria (iii) Cytoplasm (iv) Smooth endoplasmic reticulum (v) Rough endoplasmic (vi) Mitochondrial matrix (vii) Cell vacuole (viii) Nucleus The correct components are