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WorksheetsBio-molecules
Total questions: 30
Worksheet time: 15mins
The branch of biology that deals with study of chemical components and the chemical processes in living organisms.?
Anotomy
Physiology
Taxonomy
Biochemistry
Water is an powder protection against damage from friction because its is an effective...
Lubricant
Solvent
Organic compound
Solute
The carbohydrates are primary product of
Respiration
Photosynthesis
Transpiration
Evaporation
The aldehyde form of glyceraldehydes is
Dihydroxyacetone
Polysaccharide
Amylose
Glyceraldehyde
Which set of qualities is related to monosaccharides?
not sweet, insoluble in water, can be hydrolyzed into simple sugar
sweet, insoluble in water, cannot be hydrolyzed in to simpler sugars
Sweet, soluble in water, cannot be hydrolyzed into simpler sugars
sweet, soluble in water, can be hydrolyzed to simpler sugars
The monosaccharide which forms a five cornered ring is called
Ribose
Glucose
Heptose
None
Abundantly glycogen is stored in
Liver and muscle
Liver and spleen
Liver and Bones
Liver and pancreas
The reaction that needs energy
Catabolic
Anabolic
Both
None
The molecule which is unstable and is immediate source of energy
Amino acids
Glucose
ATP
Fatty acids
Part of our body which comprises of 85% water
Skin
Liver
Lung
Brain
Evaporation of only 2 molecules of water out of 1 liter lowers the temperature of
10°C
1°C
4°C
2°C
The ring of Ribfuranose is
3 cornered
5 cornered
6 cornered
4 cornered
The sugar which is present in nucleotide is
Heptose
Pentose
Triose
Hexose
The two polynucleotide strands are wound round each other. How many base pairs are there in each turn
5 base pair
15 base pairs
10 base pairs
20 base pairs
Basically the nature of enzymes is
Protein
Carbohydrates
Lipids
All
Which biomolecule is distributed more widely in a cell?
Chloroplast
RNA
DNA
Spaherosomes
Name the simplest amino acid
Alanine
Tyrosine
Asparagine
Glycine
Which of the following is a phospholipid?
Sterol
Cholesterol
Lecithin
Steroid
In which of the following an anticodon occurs
tRNA
mRNA
rRNA
DNA
Haemoglobin has
Primary structure
Secondary structure
Quaternary structure
Tertiary structure
β-oxidation occurs in which organelle
Nucleus
Cytoplasm
Mitochondria
Chloroplast
Alpha helix and Beta sheet are
Primary structure
Secondary structure
Tertiary structure
Quaternary structure
The chemical nature of 'Silk' is
Carbohydrate
Lipid
Protein
Fatty acid
A basic event in protein synthesis is the creation of a/an ____.
DNA copy
RNA copy
mRNA copy
DNA and RNA copy
Which nutrient provides the maximum energy on breakdown
Carbohydrates
Proteins
Fats
Nucleic acid
Lipids are soluble in which of the following
Water
Ether
All solvents
No any
Which purine base is present RNA
Thymine
Cytosine
Uracil
Adenine
A segment of DNA has 120 adenine and 120 cytosine bases. The total number of nucleotides present in the segment is
120
280
360
480
Which is wrong about nucleic acids?
DNA is single stranded in some viruses
RNA is double stranded occasionally
DNA always contains uracil base pair
DNA is contains 1 less O2 than RNA
The four elements that make up 99% of all elements found in a living system are
C, H, O and P
C, N, O and P
H, O, C and N
C, H, O and S
