NAT IM Pre Medical Biology Test Preparation for Pakistani Students

If two generation are vegetatively similar such alternation of generation is refered to as

• Isomorphic A
• Heteromorphic B
• Saprophytic life cycle C
• None D

• 
  A
• 
  B
• 
  C
• 
  D

Enzymes are composed of

• Carbohydrates A
• Lipids B
• Amino acids C
• All of above D

Which of the following substances provide energy to the body

• Carbohydrates A
• Fats B
• Amino acids C
• All of above D

Lithospheric ecosystem is

• Terrestrial A
• Aquatic B
• Aerial C
• Desert D

The thin hair like appendages in bacteria is made up of protein

• Chitin A
• Flagellum B
• Pilin C
• Fibrogen D

Enzymes involved in the synthesis of protein are integral part of

• Mitochondria A
• Ribosomes B
• EPR C
• Nucleus D

Biotic components of ecosystem are

• Animal and plants A
• Micro-organisms B
• Fungi C
• All of above D

A group of bacteria called archaebacteria that tolerate temperature up to

• 110 C^o A
• 120 C^o B
• 50 C^o C
• 40 C^o D

System in water in which living and nonliving things exchange materials and energy is

• Hydrospheric ecosystem A
• Aquatic ecosystem B
• Major ecosystem C
• None of these D

Fungi resembles to plants have

• Cell wall A
• Large vacuole B
• Chlorophyll C
• Chloroplast D

Gametes in bryophytes are produced by

• Meiosis A
• Mitosis B
• Binary fission C
• Fragmentation D

Respiratory protein found in all aerobic species is

• Cytochrome a A
• Cytochrome b B
• Cytochrome C C
• All of above D

The oldest homologous structures are

• Respiratory organ A
• Circulatory organ B
• Vestigial organ C
• Excretory organ D