Haemodialysis means cleaning of:
(A) Urine
(B) Blood ✅
(C) Glomerular filtrate
(D) Coelomic fluid
Answer: (B)
Production of sweat and sebum is related with:
(A) Skin ✅
(B) Liver
(C) Lungs
(D) GIT
Answer: (A)
The evaporative cooling in the respiratory tract of dogs is called:
(A) Vasodilation
(B) Vasoconstriction
(C) Panting ✅
(D) All of these
Answer: (C)
Which type of pathogen causes diseases that can be treated with antibiotics?
(A) Bacteria ✅
(B) Fungi
(C) Virus
(D) None of these
Answer: (A)
Most cell membranes are composed principally of:
(A) DNA and protein
(B) Protein and lipids ✅
(C) Protein and chitin
(D) Protein and RNA
Answer: (B)
Normally, in the process of osmosis, the net flow of water molecules into or out of the cell depends upon differences in the:
(A) Concentration of water molecules inside and outside the cell ✅
(B) Concentration of enzymes on either side of the cell membrane
(C) Rate of molecular motion on either side of the cell membrane
(D) None of these
Answer: (A)
Sodium ions are “pumped” from a region of lower concentration to a region of higher concentration in the nerve cells of humans. This process is an example of:
(A) Diffusion
(B) Passive transport
(C) Osmosis
(D) Active transport ✅
Answer: (D)
Proteins are made from amino acids by the process of:
(A) Hydrolysis
(B) Pinocytosis
(C) Dehydration synthesis ✅
(D) Active transport
Answer: (C)
Which is an organic compound found in most cells?
(A) Water
(B) Glucose ✅
(C) Oxygen
(D) Sodium chloride
Answer: (B)
Which are the four most abundant elements in living cells?
(A) Carbon, oxygen, nitrogen, sulfur
(B) Carbon, oxygen, hydrogen, nitrogen ✅
(C) Carbon, oxygen, sulfur, phosphorus
(D) Carbon, sulfur, hydrogen, magnesium
Answer: (B)
Starch is converted into maltose by:
(A) Diastase
(B) Invertase ✅
(C) Maltase
(D) Amylase
Answer: (B)
Co-enzyme is often formed from:
(A) Lipid
(B) Protein
(C) Inorganic ion
(D) Vitamin ✅
Answer: (D)
Messenger RNA is formed in:
(A) Nucleus ✅
(B) Chloroplast
(C) Mitochondria
(D) None of these
Answer: (A)
Number of chromosomes in E.coli:
(A) 4
(B) 6
(C) 3
(D) 1 ✅
Answer: (D)
Protein factory is:
(A) Nucleus
(B) Ribosome ✅
(C) Golgi complex
(D) Centriole
Answer: (B)
Smallest disease-causing agents in plants are:
(A) Virion
(B) Mycoplasma
(C) Viroids ✅
(D) Prions
Answer: (C)
The major cell infected by HIV is lymphocyte:
(A) Helper-T ✅
(B) B
(C) Both T and B
(D) None of these
Answer: (A)
Pigment present in red algae is:
(A) Fucoxanthin
(B) Phycocyanin
(C) Phycoerythrin ✅
(D) Bilirubin
Answer: (C)
Nutrition in fungi is:
(A) Photosynthetic
(B) Chemosynthetic
(C) Completely parasitic
(D) Absorptive heterotrophs ✅
Answer: (D)
Fungi resemble plants because they lack:
(A) Cell wall
(B) Cytoplasm
(C) Centriole ✅
(D) Nucleus
Answer: (C)
Which is a parasitic plant?
(A) Cuscuta ✅
(B) Rose
(C) Ferns
(D) Mosses
Answer: (A)
True roots are absent in:
(A) Ferns
(B) Bryophytes ✅
(C) Gymnosperms
(D) Angiosperms
Answer: (B)
The mechanism for ATP synthesis is:
(A) Chemosynthesis
(B) Photosynthesis
(C) Phosphorylation
(D) Chemiosmosis ✅
Answer: (D)
Enzyme present in saliva is:
(A) Lipase
(B) Trypsin
(C) Ptyalin ✅
(D) Invertase
Answer: (C)
Nitrogen is present in:
(A) Carbohydrates
(B) Proteins ✅
(C) Lipids
(D) Carbonates
Answer: (B)
Fresh water ecosystem covers:
(A) 2%
(B) 1% ✅
(C) 3%
(D) 5%
Answer: (B)
Foul smell in a lake is produced by:
(A) Algae
(B) Bacteria
(C) Fungi
(D) All of these ✅
Answer: (D)
Starch is richly present in:
(A) Onion
(B) Apple
(C) Cereals ✅
(D) Tomato
Answer: (C)
Plants having foreign DNA are known as:
(A) Genetic plants
(B) Recombinant plants
(C) Cultured plants
(D) Transgenic plants ✅
Answer: (D)
Which of the following kinds of atoms do not occur in carbohydrates?
(A) Carbon
(B) Hydrogen
(C) Nitrogen ✅
(D) Oxygen
Answer: (C)
The basic framework of all types of membranes are:
(A) Lipoproteins ✅
(B) Glycoproteins
(C) Proteoglycans
(D) Nucleoproteins
Answer: (B)
Single membrane-bounded organelle is:
(A) Nucleus
(B) Lysosome ✅
(C) Ribosome
(D) None of these
Answer: (B)
Irregular grape-like cluster of bacilli is called:
(A) Diplo bacilli
(B) Strepto bacilli
(C) Staphylo bacilli ✅
(D) None of these
Answer: (C)
It is generally accepted that plants arose from ancestral:
(A) Green algae ✅
(B) Fungi
(C) Bacteria
(D) All of these
Answer: (A)
Main energy reserves in the case of green algae are:
(A) Glycogen
(B) Sucrose
(C) Glucose
(D) Starch ✅
Answer: (D)
The chief component of the cell wall of the majority of fungi is:
(A) Pectin
(B) Chitin ✅
(C) Lignin
(D) Cellulose
Answer: (B)
After pollination, the pollens are transferred to which part of the flower?
(A) Ovary
(B) Style
(C) Stigma ✅
(D) None of these
Answer: (C)
Glyoxisomes contain enzymes for:
(A) Glyoxylate cycle ✅
(B) Glycolate cycle
(C) Calvin cycle
(D) None of these
Answer: (A)
Vacuoles serve to:
(A) Expand the plant cells
(B) Sites for storage
(C) Both in expansion and storage ✅
(D) Non-specific function
Answer: (C)
An isolated virus is not considered living since it:
(A) Separates into two parts
(B) Cannot metabolize ✅
(C) Rapidly loses its genome
(D) All of these
Answer: (B)
The predominant phycobilin pigment in cyanobacteria, which is of blue color, is:
(A) Phycoerythrin
(B) Phycocyanin ✅
(C) Fucocyanin
(D) Fucoxanthin
Answer: (B)
Deafness is caused by misuse of:
(A) Penicillin
(B) Tetracycline
(C) Paracetamol
(D) Streptomycin ✅
Answer: (D)
Cell envelope does not include:
(A) Capsule
(B) Slime layer
(C) Cell wall
(D) Cell membrane ✅
Answer: (D)
Coenocytes is a fungal body which is:
(A) Multi-nucleate aseptate ✅
(B) Multi-nucleate septate
(C) Uni-nucleate septate
(D) Uni-nucleate aseptate
Answer: (A)