Question # 1

Classes are grouped into ____________

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Classes

Phyla

Family

Order

............... is an essential requirement of photosynthesis.

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CO2

H2O

O2

All

The plasma membrane does all of these except ________

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Contains the hereditary material

Acts as a boundary or border for the cytoplasm

Regulates passages of material in and out of the cell

Functions in the recognition of cell

Phyla are grouped into ____________

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Classes

Family

Kingdom

Order

Eukaryotic Ribosome is .............. .

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20s

30s

80s

70s

Denaturation of enzyme is caused by:

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Increased pH

Decreased pH

Increases in temperature above optimum temperature

Decreases in temperature

The_______is the membrane enclosed structure in eukaryotic cells that contains the DNA of the cell.

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Mitochondria

Chloroplast

Nucleolus

Nucleus

The study of genes and their role in inheritance is called.

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Histology

Anatomy

Genetics

Inheritance

Which of the following character is not related to Animalia?

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Eukaryotic

Multicellular

Hetrotrophs

Autotrophs

What is the effect of change in pH?

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Digradation of amino acids at active sites

Ionization of amino acids at active sites

Formation of new amino acids at active sites

All of these

There are ... types of photosynthesis pigments.

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One

Two

Three

Four

Important cause of species extinctions is:

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Habitat loss

Deforestaion

Over population

Both a and b

The scientific name of wolf is _____________

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Canis leo

Canis domestica

Canis lupus

Canis religiosa

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