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Can anyone list 10 advantages and disadvantages of friction?
Find out the location of the deposits of iron, alimunium and zinc in india?
Visit a farm, nursery or a garden near by. Gather information about -
- Fertilizers/ Manure used.
HELP ME EXPETS PLZZZgive 10 examples of friction in our daily life.
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Q.1: The largest cell in the human body is -
rn(a)Nerve cell (b)Muscle cell (c)Liver cell (d)Kidney cell
rnQ.2: The barrier between the protoplasm and the other environment in an animal cell is -
rn(a)Cell wall (b)Nuclear membrane (c)Tonoplast (d)Plasma membrane
rnQ.3: The term ‘Cell’ was given by -
rn(a)Leeuwenhoek (b)Robert Hooke (c)Flemming (d)Robert Brown
rnQ.4: Who proposed the cell theory? -
rn(a)Schleiden and Schwann (b)Watson and Crick (c)Darwin and Wallace (d)Mendel and Morgan
rnQ.5: A plant cell differs from an animal cell in the absence of -
rn(a)Endoplasmic Reticulum (b)Mitochondria (c)Ribosome (d)Centrioles
rnQ.6: Centrosome is found in -
rn(a)Cytoplasm (b)Nucleus (c)Chromosomes (d)Nucleolus
rnQ.7: The power house of a cell is -
rn(a)Chloroplast (b)Mitochondrion (c)Golgi apparatus (d)Nucleolus
rnQ.8: Within a cell the site of respiration (oxidation) is the -
rn(a)Ribosome (b)Golgi apparatus (c) Mitochondrion (d) Endoplasmic Reticulum
rnQ.9: Which is called ‘Suicidal Bag’?
rn(a)Centrosome (b)Lysosome (c)Mesosome (d)Chromosome
rnQ.10: Ribosomes are the center for -
rn(a)Respiration (b)Photosynthesis (c)Protein synthesis (d)Fat synthesis
rnQ.11: Double membrane is absent in -
rn(a)Mitochondrion (b)Chloroplast (c)Nucleus (d)Lysosme
rnQ.12: Cell organelle found only in Plant is -
rn(a)Golgi apparatus (b) Mitochondria (c)Plastids (d)Ribosomes
rnQ.13: Organisms lacking nucleus and membrane bound organelle are -
rn(a)Diploids (b)Prokaryotes (c)Haploids (d)Eukaryotes
rnQ.14: Animal cell is limited by -
rn(a)Plasma membrane (b) Shell membrane (c)Cell wall (d)Basement membrane
rnQ.16: Lysosomes are reservoirs of -
rn(a)Fat (b)RNA (c)Secretory Glycoprotein (d)Hydrolytic Enzymes
rnQ.17 Centrioles are associated with -
rn(a)DNA synthesis (b)Reproduction (c)Spindle formation (d)Respiration
rnQ.18: Main difference between animal cell and plant cell is -
rn(a)Chromosome (b)Ribosome (c)Lysosome (d) Endoplasmic Reticulum
rnQ.19: Animal cell lacking nuclei would also lack in -
rn(a) Chromosome (b) Ribosome (c) Lysosome (d) Endoplasmic Reticulum
rnQ.20: Plasmolysis occurs due to -
rn(a)Absorption (b)Endosmosis (c)Osmosis (d)Exosmosis
rnQ.21: A plant cell becomes turgid due to -
rn(a)Plasmolysis (b) Exosmosis (c) Endosmosis (d)Electrolysis
rnQ.22 Solute concentration is higher in the external solution -
rn(a)Hypotonic (b)Isotonic (c)Hypertonic (d)None of the above
rnQ.23: A cell placed in hypertonic solution will -
rn(a)Shrink (b)Show Plasmolysis (c)Swell up (d)No change in shape or size
rnQ.24: Which of the following organelle does not have membrane?
rn(a)Ribosome (b)Nucleus (c)Chloroplast (d)Mitochondria
rnQ.25: Root hair absorbs water from soil through -
rn(a)Osmosis (b)Active transport (c)Diffusion (d)Endocytosis
rnQ.26: Which cell organelle is not bounded by a membrane -
rn(a)Ribosome (b)Lysosome (c)ER (d)Nucleus
rnQ.27: Which of the following cellular part possess a double membrane?
rn(a)Nucleus (b)Chloroplast (c)Mitochondrion (d)All of the above
rnQ.28: Cell organelle that acts as supporting skeletal framework of the cell is -
rn(a) Golgi apparatus (b) Nucleus (c) Mitochondria (d) ER
rnQ.29: Plastids are present in -
rn(a)Animal cell only (b)Plant cells only (c)Both animal cells and Plant cells (d)Neither animal nor
rnplant cell
rnQ.30: Cell wall of plant is chiefly composed of -
rn(a)Hemicellulose (b)Cellulose (c)Phospholipids (d)Proteins
rnQ.31: Intercellular connections of plant cells are called -
rn(a)Middle lamella (b)Micro fibrils (c)Matrix (d)Plasmodesmata
rnQ.32: Genes are located on the -
rn(a)Chromosomes (b)Nucleolus (c)Nuclear membrane (d)Plasma membrane
rnQ.33: Chromatin consists of -
rn(a)RNA (b)DNA (c)RNA and histones (proteins) (d)DNA and histones (proteins)
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