Biology Fsc Part 1 Online Test With Answers

Biology Fsc Part 1 Online Test

Sr. # Questions Answers Choice
1 Nucleus ws discovered by  Rbert Koch Louis Pasteur Theodor Schwann Robert Brown
2 Who concluded that parts of platns were made of comparatments. Robert Hooke Robert Whittaker Louis Pasteur Leeuwenhoek
3 How does the process of facilitated diffusion differ from active transport Facilitated diffusion requries energy, active transport does  not Faciliated diffusion does not require energy, active transport does not Faciliated diffusion does not require energy , active transort does Both porcesses require energy  Both proesses do ot require energy
4 Which of the followig does not apply to chloroplasts They contain chlorophyll and the enzymes required for photosyntehsis They contain an internal membrane system consisting of thylakoids They synthesize ATP They are bounded by two memerbanes, the inner of which is folded into the cristae
5 How would the absence of peroxisomes in a cell affect its metabolism, and what would be the likely symptoms. The cell would be unable to carry out oxidative phosphorylation, leading to reduced ATP Production  The cell would accumate hydrogen peroxide, leading to oxidative stree and potential cellular damage The cell would have imparied proten synthesis, ,leading  to muscle weakness The cell would fail to produce lipids causing memebrane instability
6 All perooxisomes carry out this function Break down fasts and aminko acids into smaller molecules that can be used for energy production by mitochondria Digest macromolecules usng the hydrolytic enzymes they contain Synthesize memebrane components such as fatty acids and phospholipids Control the flow of ions into and out of the cell
7 Which of the following statemetn  does not apply to the nuclear envelope It is a doubel memberane It is containous with the endoplasmic reticulum It has poress through which material enters and leaves It has infoldings to form crisate
8 In the nucleus of eukaryotic cells, the gentic material is complexed with protein and organized  into linear sturctures celled. Chromosomes Centrioles Histones Plasmids
9 The rough endoplasmic reticulum is. An intracelular double memebrane system to which ribosomes are attached An interacellular memebrane that is studded with microtubular structures A memberanous structur efound within mitochondria Only found in prokaryotic cells
10 A centriole is an organelle that is. Composed of microtubules and important for organizaing the spindle fibres Present in the cente of a cell's cytoplasm Surrounded by a memberane Part of a chromosomes
11 Which of the followgn is not an accurate description of a chromosomes It is a coloured body localized n the nucleus It is a protein and nucleic acid compledI It is the cellular struvyur that contains the genetic material In eukaryotes, it is compose dof many DNA molecules attached end to end
12 Which of the following eukaryotic cll structures does not contain DNA. Nucleus Mitochondrion Endoplasmic reticulum Chloroplast
13 The mats on the sediments in the sea are dominatedby  Cyanobacteria Pseudomonas Actinomycetes Chemosyntheitc bacteria
14 The group of bacterial which played most important role in history  of the arth for increasing  free oxygen in atmosphere. Cyanobacteria sprroplasmas Mycoplasmas Pseudomonas
15 margulis and Schwartz classified bacterial into...............phyla. 8 16 27 5
16 The fossil record of prokaryotes shows that archea and bacterial were abundatn...............years ago. 2.5 million  3.5 million  3.5 billion  1.5 billion 
17 The structure which connects basal body with filament, in bacteria is. Rotating ring Hook Pilus Plasmid
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