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BSCS Biology Review 2

Test Description: This quiz is a comprehensive review of the BSCS curriculum discussed during freshmen year biology.

Instructions: Answer all questions to get your test result.

1) The control center of the cell is the

Aendoplasmic reticulum Bcytoplasm Cnucleus Dcell membrane

2) Osmosis is

Athe means for nutrients to cross cell barriers Bthe way cells use energy to dispose of wastes Cthe process of active transport Dthe simple diffusion of fluids such as water

3) In diffusion, random motion of molecules tends to move the molecules from where they are

Ahighly concentrated to where they are needed Bless concentrated to where they are more highly concentrated Cfirst used for food to where they are eliminated as waste Dhighly concentrated to where they are less concentrated

4) What is the functioning unit of the kidney?

Aglomerulus Bcollecting tubule Cnephron Dalveolus

5) What is NOT a function of the human kidney?

Ato remove wastes Bto produce CO2 Cto make adjustments in blood composition Dto reabsorb water and excrete salt

6) What is one of the body's responses when the blood temperature goes below 37 degrees Celsius?

Agreater blood flow to the skin Bincreased production of sweat Ccontraction of surface blood vessels Ddilation of blood vessels to arms and legs

7) Which is the most acidic?

Asea water (8.2) Bblood plasma from human (7.5) Cfresh water from a lake (6.8) Ddistilled water (6.0)

8) Hemoglobin is essential to blood because it combines readily with

Athrombin Bnutrients Coxygen Durea

9) Which is involved in human body temperature regulation?

Asweating Bshivering Cdilation and constriction of blood vessels in the skin Dall of these

10) In humans, air is drawn into and pumped out of the lungs by movements of the

Alung muscles and trachea Btrachea and larynx Crib muscles and diaphragm Darms and shoulders

*select an answer for all questions

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