Question # 1

Optimum pH values for enzyme arginase is

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7.60

9.70

8.60

9.52

Feeding by living in or on other organisms is a

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Parasite

Fungicide

Insecticide

Saprophyte

The bacteria which can grow either in the presence or absence of oxygen are called.

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Aerobic bacteria

Anaerobic bacteria

Facultative bacteria

Microaerophilic bacteria.

Which one is an example of foliose lichens.

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Ramalina

Bacidia

Lecanora

Permelia

Member of subdivision hepaticopsidaare commonly called.

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Horstailis

Club mosses

Liver worts

Hornworts

Which of the following statement about the ribosomes is correct

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They are structurally different from free ribosomes

They are enclosed in their own membrane

They are concentrated in the cisternal space for the rough ER

They are attached to cisternal surface

An isolated virus is not considered living, since it

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Separates into two inert parts

Cannot metobolize

Rapidly looses its gnome chemically inert

Is coated with an airtight shield

The smallest known viruses are.

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Bacteriophage

pseudomonas

Polio

E -coli

Tay sach's disease in caused by the

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Accumulation of proteins

Accumulation of glycogen

Accumulation of lipids

Accumulation of vitamins

The enzyme with optimum pH = 7.60 is

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Arginase

Enterokinase

Catalase

Sucrase

Nociceptors produce sensation of

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Touch

Pain

Warmth

Pressure

Unlike most proteins, histones are.

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Positively charges

Neutral

discharged

Negatively charged

Which hormone induces labour pain

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LTH

LH

Oxytocirl

Lactogen

In living thing, the behavior activities occurs at regulars intervals which are called.

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diumal rhythms

Blorhythms

Circannual

Orcadian

Mammalian kidney including human is adapted to conserve water by over

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20.5%

50%

99.5%

70%

Movement of rearrangement of the cells in the embryo is called.

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Cleavage

Gastrulation

Fertilization

Organogenesis

The kinetochore fibres of spindle attach to the kinetochore region of chromosome and align them at the equator of the spindle forming

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Equatorial plate

Metaphase plate

Central plate

Both a & b

Young tissues retaining the potential to divide.

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Meristem

Xylem

Phloem

Cork

According to one of the speculations life may have begun deep in the oceans in underwater hot springs called hydrothermal

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Apertures

Gaps

Vents

Outlets

The study of birds is:

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Ornithology

Ichthyology

Herpetology

Entomology

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