Description : Infoldings of inner membrane in mitochondria are called (A) Grana (B) Thyallkoids (C) Cristae (D) Frets
Last Answer : (C) Cristae
Description : The structures that are formed by stacking of organised flattened membranous sacs in the chloroplasts are (a) stroma lamellae (b) stroma (c) cristae (d) grana.
Last Answer : (d) grana.
Description : Dark reactions of photosynthesis occur in (a) granal thylakoid membranes (b) stromal lamella membranes (c) stroma outside photosynthetic lamellae (d) periplastidial space.
Last Answer : c) stroma outside photosynthetic lamellae
Description : The inner membrane of the mitochondria is, usually, highly convoluted forming a series of infoldings known as (a) thylakoids (b) lamellae (c) cristae (d) grana.
Last Answer : (c) cristae
Description : Within chloroplasts, light is captured by (A) Grana within cisternae (B) Thylakoids within grana (C) Cisternae within grana (D) Grana within thylakoids
Last Answer : (B) Thylakoids within grana
Description : During photorespiration, the oxygen consuming reaction(s) occur in (a) stroma of chloroplasts (b) stroma of chloroplasts and mitochondria (c) stroma of chloroplasts and peroxisomes (d) grana of chloroplasts and peroxisomes.
Last Answer : (c) stroma of chloroplasts and peroxisomes
Description : In C4 plants, Calvin cycle operates in (a) stroma of bundle sheath chloroplasts (b) grana of bundle sheath chloroplasts (c) grana of mesophyll chloroplasts (d) stroma of mesophyll chloroplasts.
Last Answer : (a) stroma of bundle sheath chloroplasts
Description : Chlorophyll in chloroplasts is located in (a) grana (b) pyrenoid (c) stroma (d) both grana and stroma.
Last Answer : (a) grana
Description : In chloroplasts, chlorophyll is present in the (a) outer membrane (b) inner membrane (c) thylakoids (d) stroma.
Last Answer : (c) thylakoids
Description : Oxidation of fatty acids occurs (A) In the cytosol (B) In the matrix of mitochondria (C) On inner mitochondrial membrane (D) On the microsomes
Last Answer : Answer : B
Description : The electron transport chain within the inner mitochondrial membrane creates a gradient of ____________ across the inner membrane which is utilized to drive the activity of ATP synthase and the generation of ATP.
Last Answer : Hydrogen (H+ ions) or protons
Description : Eukaryotic cells have extensive intracellular membranes, termed the endomembrane system, which divide the cell into structurally and functionally distinct compartments, or organelles. These include the inner cell ... . Name a cellular component whose membrane is not part of the endomembrane system.
Last Answer : Mitochondria; also chloroplasts
Description : Read the following four statements, (i), (ii), (iii) and (iv) and select the right option having both correct statements. Statements : (i) Z scheme of light reaction takes place in presence of PSI only. (ii) Only PSI is ... and (iv) (b) (i) and (ii) (c) (ii) and (iii) (d) (iii) and (iv)
Last Answer : (a) (ii) and (iv)
Description : Assertion :In `C_(4)` plants, the chloroplasts of bundle sheath cells are granal. Reason: PS II is mostly found in the appressed part of granum.
Last Answer : Assertion :In `C_(4)` plants, the chloroplasts of bundle sheath cells are granal. Reason: PS II ... false. D. If both Assertion and Reason are false.
Description : Grana and Stroma are found in
Last Answer : Ans. Chloroplast
Description : Photosystem II occurs in (a) stroma (b) cytochrome (c) grana (d) mitochondrial surface.
Last Answer : (c) grana
Description : What are chloroplasts ?
Last Answer : What is the main function of chloroplasts? Chloroplasts are organelles present in the cytoplasm of plant and algae cells. Likewise mitochondria, chloroplasts have two boundary membranes and many internal ... carbon dioxide, water and light. Cell Structure Review - Image Diversity: chloroplasts
Description : All enzymes of TCA cycle are located in the mitochondrial matrix except one which is located in inner mitochondrial membranes in eukaryotes and in cytosol in prokaryotes. This enzyme is (a) isocitrate dehydrogenase (b) malate dehydrogenase (c) succinate dehydrogenase (d) lactate dehydrogenase.
Last Answer : (c) succinate dehydrogenase
Description : Besides giving out secretory vesicles, the Golgi apparatus is also concerned with the formation of (a) lysosomes (b) plastids (c) grana of chloroplasts (d) cell plates after cell division in plants.
Last Answer : (a) lysosomes
Description : Which one of the following cellular parts is correctly described? (a) Thylakoids - flattened membranous sacs forming the grana of chloroplasts (b) Centrioles - sites for active RNA synthesis (c) Ribosomes - ... cytoplasm are smaller (70S) (d) Lysosomes - optimally active at a pH of about 8.5
Last Answer : (a) Thylakoids - flattened membranous sacs forming the grana of chloroplasts
Description : Which of these statements is incorrect? (a) Enzymes of TCA cycle are present in mitochondrial matrix. (b) Glycolysis occurs in cytosol. (c) Glycolysis operates as long as it is supplied ... that can pick up hydrogen atoms. (d) Oxidative phosphorylation takes place in outer mitochondrial membrane
Last Answer : (d) Oxidative phosphorylation takes place in outer mitochondrial membrane
Description : Which of these statements is incorrect ? (1) Enzymes of TCA cycle are present in mitochondrial matrix. (2) Glycolysis occurs in cytosol. (3) Glycolysis operates as long as it is supplied ... that can pick up hydrogen atoms. (4) Oxidative phosphorylation takes place in outer mitochondrial membrane.
Last Answer : (4) Oxidative phosphorylation takes place in outer mitochondrial membrane.
Description : Select the wrong statement from the following. (a) Both chloroplasts and mitochondria have an internal compartment, the thylakoid space bounded by the thylakoid membrane. (b) Both chloroplasts and ... mitochondria. (d) Both chloroplasts and mitochondria contain an inner and an outer membrane.
Last Answer : (a) Both chloroplasts and mitochondria have an internal compartment, the thylakoid space bounded by the thylakoid membrane.
Description : Stroma in the chloroplasts of higher plant cantains
Last Answer : Stroma in the chloroplasts of higher plant cantains A. Chlorophyll B. Light-independent reaction ... . Light-independent reaction enzymes D. Ribosomes
Description : Stroma in the chloroplasts of higher plant contains (a) light-dependent reaction enzymes (b) ribosomes (c) chlorophyll (d) light-independent reaction enzymes.
Last Answer : d) light-independent reaction enzymes.
Description : Tissues are constructed from many distinct cell types that perform different functions in response to signals from each other and the extracellular matrix. During tissue development and tissue regeneration, ... that stem cells undergo when they are required to generate a particular type of cell?
Last Answer : Asymmetric cell division. After asymmetric division, each of the two resulting daughter cells has a unique life course. For example, one daughter cell may differentiate into a specific cell type ( ... cell), whereas the other daughter cell may remain a stem cell with unlimited proliferative ability.
Description : Which of the following terms refers to mature compact bone structures that form concentric rings of bone matrix? a) Lamellae Lamellae are mineralized bone matrix. b) Endosteum Endosteum refers to ... bone structure. d) Cancellous bone Cancellous bone refers to spongy, lattice-like bone structure.
Last Answer : a) Lamellae Lamellae are mineralized bone matrix.
Description : What is mass transportation across the cell membrane ?
Last Answer : Mass transportation is the entrance or the exiting of substances in or from the cell engulfed by portions of membrane. The fusion of internal substance-containing membranous vesicles with the cell ... cell after they have been engulfed by projections of the membrane is called endocytosis.
Description : How does the sodium-potassium pump present in the cell membrane work ?
Last Answer : What is the importance of this protein for the cell? The sodium-potassium pump is the transport protein that maintains the concentration gradient of these ions between the intra and the ... maintain the cellular metabolism. Cell Membrane Review - Image Diversity: sodium-potassium pump
Description : What are differentiations of the cell membrane ?
Last Answer : In some types of cells, the cell membrane present differentiations that are necessary for the specific functions of the cells. The main differentiations are the microvilli and the structures for ... tight junctions (zonula occludens), zonula adherens (adherens junctions) and gap junctions.
Description : What are the basic constituents of the cell membrane ?
Last Answer : The cell membrane is formed of lipids, proteins and carbohydrates. The membrane lipids are phospholipids, a special type of lipid to which one extremity a phosphate group is bound thus ... cell membrane. Cell Membrane Review - Image Diversity: phospholipid bilayer membrane proteins glycocalyx
Description : Concerning permeability what type of membrane is the cell membrane ?
Last Answer : The cell membrane is a selectively permeable membrane, i.e., it allows the passage of water and some selected solutes. Cell Membrane Review - Image Diversity: cell membrane
Description : What is a membrane ?
Last Answer : Membrane is any delicate sheet that separates one region from other blocking or permitting (selectively or completely) the passage of substances. The skin, for example, can be considered a membrane ... body; cellophane, used in chemical laboratories to separate solutions, acts as membrane too.
Description : What is the name of the membrane that delimits the nucleus ?
Last Answer : To which component of the cell structure that membrane is contiguous? The nuclear membrane is also called karyotheca. The nuclear membrane is continuous to the endoplasmic reticulum membrane.
Description : What is the difference between plasma membrane and cell wall ?
Last Answer : Plasma membrane and cell wall is not the same thing. Plasma membrane, also called cell membrane, is the outer membrane common to all living cells and it is made of a phospholipid bilayer, ... made of peptidoglycans and other organic substances. Cell Structure Review - Image Diversity: cell wall
Description : What are the chemical substances that compose the plasma membrane ?
Last Answer : The main constituents of the plasma membrane are phospholipids, proteins and carbohydrates. The phospholipds, amphipathic molecules, are regularly organized in the membrane according to their polarity: two layers of ... bound to proteins and to phospholipids in the outer face of the membrane.
Description : What is the plasma membrane of the cell ?
Last Answer : What are its main functions? The plasma membrane is the outer membrane of the cell it delimits the cell itself and a cell interior with specific conditions for the cellular function. Since it ... passage of substances inwards or outwards. Cell Structure Review - Image Diversity: cell membrane
Description : What characteristic of the plasma membrane allows selective molecules to pass through it?
Last Answer : It is semi-permeable.
Description : Peroxisomes and Glyoxisomes are (A) Energy transducers (B) Membrane-less organelles (C) Micro bodies (D) Basal bodies
Last Answer : (C) Micro bodies
Description : The chloroplast develop from (A) ER (B) Golgi complex (C) Nuclear membrane (D) Proplastids
Last Answer : (D) Proplastids
Description : ″Proteins icebergs in a sea of lipids” is stated by (A) Lamellar Model (B) Unit-membrane Model (C) Fluid-Mosaic model (D) Micellar Model
Last Answer : (C) Fluid-Mosaic model
Description : Lysosomes arise from, (A) Nucleus (B) Endoplasmic reticulum (C) Golgi apparatus (D) Cell membrane
Last Answer : (C) Golgi apparatus
Description : The outer most layer of cell wall is (A) Primary wall (B) Secondary wall (C) Middle lamella (D) Plasma membrane
Last Answer : (C) Middle lamella
Description : Which of the following would you NOT find in a bacterial cell (A) DNA (B) Cell membrane (C) Golgi apparatus (D) Ribosomes
Description : What part of the cell serves as the intracellular highway? (A) Endoplasmic reticulum (B) Golgi apparatus (C) Cell membrane (D) Mitochondria
Last Answer : (A) Endoplasmic reticulum
Description : Which of the following cell part is described as a "fluid mosaic"? (A) Chloroplast (B) Vacuole (C) Cell membrane (D) Endoplasmic reticulum
Last Answer : (C) Cell membrane
Description : Plant cells contain the following 3 things not found in animal cells _________, _____________ and ______________. (A) Plastids / Chlorophyll / Membrane (B) Chloroplast / Cell wall / Golgi body (C) Plastids / Cell wall / Chlorophyll (D) Mitochondria / Cell wall /
Last Answer : (C) Plastids / Cell wall / Chlorophyll
Description : Cells are commonly studied in the lab. If you were examining various unlabelled slides of cells under the microscope, you could tell if the cell was from a plant by the presence of (A) A nucleus (B) A cell membrane (C) Cytoplasm (D) A cell wall
Last Answer : (D) A cell wall
Description : A semi permeable membrane is stretched across a chamber filled with water. The membrane is only permeable to water. 60 mg of salt is added to the left side of the chamber. Which of the following will ... right side (C) Water will move toward the left side (D) salt will move toward the left side
Last Answer : (C) Water will move toward the left side
Description : The door to your house is like the __________________ of a cell membrane? (A) Phospholipid bilayer (B) Integral protein (C) Recognition protein (D) Peripheral protein
Last Answer : (B) Integral protein