هـــام (أسئلة الأحياء اللى في الكتاب)

[أبو متعب]

بسم الله الرحمن الرحيم

أما بعد ....
بعد البحث والتعب وعيوني طلعت من محلها من كثر ما حاولت .
آخراً جبت الأسئلة اللى في الكتاب حقت 3 وحدات بعضها "إختار الإجابه الصحيحة وبعضها أسئلة مباشرة. أخليكم مع الأسئلة

Multiple Choice

3.Which of the following best describes the logic of the scientific process?
a. If I generate a testable hypothesis, tests and observations will support it.
b. If my prediction is correct, it will lead to a testable hypothesis.
c. If my observations are accurate, they will support my hypothesis.
d. If my hypothesis is correct, I can expect certain test results.
e. If my tests are right, they will prove my hypothesis.


4. Amoebas and bacteria are grouped into different domains because
a. amoebas eat bacteria.
b. bacteria are not made of cells.
c. bacterial cells lack a membrane-enclosed nucleus.
d. bacteria decompose amoebas.
e. amoebas are photosynthetic.


5. A biologist studying interactions among the protists in an ecosystem could not be working at which level in life’s hierarchy? (Choose carefully and explain your answer.)
a. the population level
b. the molecular level
c. the community level
d. the organism level
e. the organ level


6. Which of the following questions is outside the realm of science?
a. Which organisms play the most important role in energy input to a savannah?
b. What percentage of music majors take a biology course?
c. What is the physical nature of the universe?
d. What is the nature of the supernatural?
e. What is the historical basis for the division of Earth’s human population into ethnic groups?


7. Which of the following statements best distinguishes hypotheses from theories in science?
a. Theories are hypotheses that have been proved.
b. Hypotheses are tentative guesses; theories are correct answers to questions about nature.
c. Hypotheses usually are narrow in scope; theories have broad explanatory power.
d. Hypotheses and theories are different terms for essentially the same thing in science.
e. Theories cannot be falsified; hypotheses are expected to be falsified.


8. Which of the following best demonstrates the unity among all living organisms?
a. descent with modification
b. the structure and function of DNA
c. emergent properties
d. natural selection
e. the three domains


9. The core idea that makes sense of all of biology is
a. the process of science.
b. the correlation of function with structure.
c. systems biology.
d. evolution.
e. unity in diversity.
Describing, Comparing, and Explaining


10. In an ecosystem, how is the movement of energy similar to that of chemical nutrients, and how is it different?


11. Explain the role of heritable variations in Darwin’s theory of natural selection.


12. Explain what is meant by this statement: The scientific process is not a rigid method.


13. Contrast technology with science. Give an example of each to illustrate the difference.


14. Explain what is meant by this statement: Natural selection is an editing mechanism rather than a creative process

.

Chapter 2

Multiple Choice

3. Changing the ____ would change it into an atom of a different element.
a. 3.number of electrons surrounding the nucleus of an atom
b. number of bonds formed by an atom
c. number of protons in the nucleus of an atom
d. electrical charge of an atom
e. number of neutrons in the nucleus of an atom


4. Your body contains the smallest amount of which of the following?
a. nitrogen
b. phosphorus
c. carbon
d. oxygen
e. hydrogen


5. A solution at pH 6 contains ___ than the same amount of a solution at pH 8.
a. 2 times more H+
b. 4 times more H+
c. 100 times more H+
d. 4 times less H+
e. 100 times less H+


6. Most of the unique properties of water result from the fact that water molecules
a. are very small.
b. are held together by covalent bonds.
c. easily separate from one another.
d. are constantly in motion.
e. are polar and form hydrogen bonds.


7. A sulfur atom has 6 electrons in its outer l. As a result, it forms ___ covalent bonds with other atoms. (Explain your answer.)
a. 2
b. 3
c. 4

d. 6e. 8


8. What does the word trace mean when you’re talking about a trace element?
a. The element is required in very small amounts.
b. The element can be used as a label to trace atoms through an organism’s body.
c. The element is very rare on Earth.
d. The element enhances health but is not essential for the organism’s long-term survival.
e. The element passes rapidly through the organism.


9. A can of cola consists mostly of sugar dissolved in water, with some carbon dioxide gas that makes it fizzy and makes the pH less than 7. In chemical terms, you could say that cola is an aqueous solution where water is the ___, sugar is a ___, and carbon dioxide makes the solution ___.
a. solvent . . . solute . . . basic
b. solute . . . solvent ...basic
c. solvent ...solute ...acidic
d. solute ...solvent ...acidic
e. not enough information to say


10. Radioactive isotopes can be used in medical studies because
a. they allow researchers to time how long processes take.
b. they are more reactive than nonradioactive isotopes.
c. the cell does not recognized the extra protons in the nucleus, so isotopes are readily used in cellular processes.
d. their location or quantity can be determined because of their radioactivity.
e. their extra neutrons produce different colors that can be traced through the body.
True/False (Change false statements to make them true.)


11. Table salt, water, and carbon are compounds.


12. The smallest particle of an element is a molecule.


13. A bathtub full of lukewarm water may hold more heat than a teakettle full of boiling water.


14. If the atoms in a molecule share electrons equally, the molecule is said to be nonpolar.


15. Ice floats because water molecules in ice are more tightly packed than in liquid water.


16. Atoms in a water molecule are held together by the sharing of electrons.


17. Most acid precipitation results from the presence of pollutants from aerosol cans and air conditioners.


18. An atom that has gained or lost electrons is called an ion.
Describing, Comparing, and Explaining


19. Make a sketch that shows how water molecules hydrogen-bond with one another. Why do water molecules form hydrogen bonds? What unique properties of water result from water’s tendency to form hydrogen bonds?


20. Describe two ways in which the water in your body helps stabilize your body temperature.


21. Compare covalent and ionic bonds.


22. What is an acid? A base? How is the acidity of a solution described?

Chapter3

3. A glucose molecule is to starch as (Explain your answer.)
a. a steroid is to a lipid.
b. a protein is to an amino acid.
c. a nucleic acid is to a polypeptide.
d. a nucleotide is to a nucleic acid.
e. an amino acid is to a nucleic acid.


4. What makes a fatty acid an acid?
a. It does not dissolve in water.
b. It is capable of bonding with other molecules to form a fat.
c. It has a carboxyl group that donates an H+ion to a solution.
d. It contains only two oxygen atoms.
e. It is a polymer made of many smaller subunits.


5. Where in the tertiary structure of a water-soluble protein would you most likely find an amino acid with a hydrophobic R group?
a. at both ends of the polypeptide chain
b. on the outside, next to the water
c. covalently bonded to another R group
d. on the inside, away from water
e. hydrogen-bonded to nearby amino acids


6. Cows can derive nutrients from cellulose because
a. they produce enzymes that recognize the shape of the glucose-glucose bonds and hydrolyze them.
b. they rechew their cud to break down cellulose fibers.
c. one of their stomachs contains prokaryotes that can hydrolyze the bonds of cellulose.
d. their intestinal tract contains termites, which produce enzymes to hydrolyze cellulose.
e. they convert cellulose to starch and can digest starch.


7. A shortage of phosphorus in the soil would make it especially difficult for a plant to manufacture
a. DNA.
b. proteins.
c. cellulose.
d. fatty acids.
e. sucrose.


8. Lipids differ from other macromolecules in that they
a. are much larger.
b. are not truly polymers.
c. do not have specific shapes.
d. are nonpolar and therefore hydrophilic.
e. contain nitrogen atoms.


9. Which functional group (or groups) is polar and tends to make organic compounds hydrophilic?
a. carbonyl
b. amino
c. hydroxyl
d. carboxyl
e. all of the above


10. Unsaturated fats
a. are more common in animals than in plants.
b. have fewer fatty acid molecules per fat molecule.
c. are associated with greater health risks than are saturated fats.
d. have double bonds in their fatty acid chains.
e. are usually solid at room temperature.
Describing, Comparing, and Explaining


11. List three different kinds of lipids and describe their functions.


12. Explain why heat, pH changes, and other environmental changes can interfere with a protein’s function.


13. How can a cell make many different kinds of protein out of only 20 amino acids? Of the myriad possibilities, how does the cell “know” which proteins to make?


14. Briefly describe the various functions performed by proteins in a cell


15. Explain how DNA controls the functions of a cell

.

هذه الأسئلة .. في أسئلة فيها رسم ما نزلتها عشاني منى قادر أحطها الله يعينكم على الأجوبة ..
والله ماذكرت زي الناس جالس أدور على الأسئلة اللى في الكتاب عشان الناس اللى ماعندهم كتاب
بس بغيت الأجر من الله والدعاء .

[J o K e R o 0 o]

ياجماعة نبغا الخبر الاكيد

ناكر كل الاسئلة ولا الاختيارات بس
وشكرا على المجهود

[M!Ss AmoOoLa]

جزااك الله خير

سبقتني كنت بنزل الأسئلة لان في أعضاء ماعندهم الكتاب

الله يعينكم جميعاّ

أنا أختباري الأحياء يوم الربوع الجاي الله يستر

تكفون احفظو الأسئلة زييييين وأكتبو إيش جاكم في موضوع خاصطلبتكم

[asma'a]

الله يوفقكـ ويعطيك العافية..

وان شاء الله اخونا اللي ماعنده الكتاب يستفيد منها..

بالتوفيق..

دمتم بخير^^...

[أبو متعب]

والله في ناس قالو لي : إن الإختبار كله من الأسئلة . "يعني كلها" وفي كم دكتور قال لى إن الإختبار ما يخرج عن الأسئلة اللى في الكتاب
.بس زي ما قلت من قبل ، ذاكروا المنهج قبل الأسئلة، إحتياط

[M!Ss AmoOoLa]

إيه صح كلامك

حتى دكتورتنا قالت لنا نفس الكلام

ان الأسئلة ماراح تخرج من أسئلة الكتاب

يعني ذاكرو البور +الأسئلة

[ghamdi-07]

شبااااب وبناااات ياليت واحد يفيدنا بالحلوووووول

[asma'a]

ان شاء الله ياااااااااااااااااااارب..

يكون ختامها مسكـ..

لأنه النفسية زفت!!!..

والله ماراح ننجح الا بتوفيق من رب العالمين..

بالتوفيق...

[ghamdi-07]

كل واحد يناااام احسن له لكن قبلها يصلي ركعتين ويدعي الله يسهلها لاني وربي فتحت الشباتر مني فاااهم كلمتين على بعضها


حتى تعريف الاحياء مني عارفه

[AND..1]

الله يعطيك العافية