Question # 1

Which of the following is a function of human blood?

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It regulates body temperature

It transports wastes

It provides defence

All of the above

Oral cavity opens into .............. .

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Phyranx

Lyranx

Trachea

Bronchi

Carbon Dioxide is almost .......... percent in air.

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0,01

0.3

0,03

0.1

A gardener sees a large snake nearby. he knows generally snakes sting, so the gardener ran away. The gardener did which of the following?

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Used reasoning

Used observation

Constructed a theory

Tested a hypothesis

................. was a German Botanist.

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Mathias Schleiden

Theodor Sachwann

Robert Brown

Robert Hooke

The most abundant and important organelle belongingto plastids are:

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Chloroplast

Chronoplast

Leucoplast

None

A scientific theory has which of the following properties?

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It agrees with the available evidence

It cannot be rejected

It has been absolute proven

It does not need to be altered in the light of new evidences

Membrane stack is chloroplast is called:

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Sturma

Granum

Both

None

Families are grouped into _____________

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Classes

Phyla

Order

Species

Which of these materials is not a component of plasma membrane?

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Lipids

Carbohydrates

Proteins

DNA

A cubic milimeter blood of male contains RBC:

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5 - 5.5 million

4-4.5 million

3-4 million

None of the above

In which stage of the cell cycle, the cell is preparing enzyme for chromosome replication?

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G1

G2

S

M

Which of the following stage of cell division is very different for animal and plant cells?

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Telophase

Metaphase

Anaphase

Cytokinesis

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