FREE BIOCHEMISTRY AND STUDY GAMES ABOUT

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FREE BIOCHEMISTRY AND STUDY GAMES ABOUT

BIOLOGY EXAM QUESTIONS

Actual Qs and Ans Expert-Verified Explanation

This Exam contains:

-Guarantee passing score -135 Questions and Answers -format set of multiple-choice -Expert-Verified Explanation

Question 1: What is the main difference between prokaryotes and eukaryotes?

Answer:

Eukarytes have a membrane bound nucleus but prokaryotes dont Question 2: The process by which organisms take in food and break it down so that is can be used for energy.

Answer:

nutrition Question 3: How does the membrane of the cell differ from the nuclear membrane? What advantages does this difference have for the nucleus?

Answer:

cell membrane protext the cell and the nucleus protects the nucleous.

Question 4: Mitochondria plant or animal or both

Answer:

both

Question 5: Firm, protective structure that gives the cell its shape in plants, fungi, most bacteria and some protests

Answer:

cell wall Question 6: What are lysosomes? What types of molecules would be found inside a lysosome?

Answer:

They are membrane bound organelles that contain about fifty different enzyems Question 7: Macromolecule with a polar glycerol/phosphate "head" and 2 non-polar hydrophobic "tails" used to make cell membranes

Answer:

phospholipids Question 8: Explain the difference between Heterotrophic Nutrition and Autotrophic Nutrition.

Answer:

Hetrophoric nutrition is taking ready made food molecules from the enviorment and autotrophic is taking simple inorganic molecules from the enviorment and coverting them into foods

Question 9: At what level of organization does life begin?

Answer:

cell Question 10: Name two (2) environmental conditions that can cause proteins (enzymes) to change their shape.

Answer:

High Tempature, PH

Question 11: Microtubles plant or animal or both

Answer:

both Question 12: Hydrophobic fats, oils, waxes, & steroids made mainly from carbon and hydrogen atoms in long chains or multiple rings

Answer:

Lipids

Question 13: Enzymes speed up chemical reactions by

Answer:

decreasing the activation energy Question 14: Consist of hollow tubes which provide support for the cell and tracks for organelles to move on

Answer:

microtubles Question 15: Assembles some components of the cell membrane; modifies proteins; has ribosomes attached to it

Answer:

rough er

Question 16: The elimination of undigested food.

Answer:

egestion

Question 17: The study of life and all of its functions and processes.

Answer:

biology

Question 18: Functions of Lipids

Answer:

Serve as structural componets of cell membranes, Functions as energy store houses, important signaling molecules.

Question 19: Describe the shape of a lipid.

Answer:

linear

Question 20: Taking ready made food molecules from the environment.

Answer:

heterotrophic nutrition

Question 21: Lysosome plant or animal or both

Answer:

both

Question 22: any of a large class of chemical compounds

Answer:

organic compound

Question 23: Rough Endoplasmic Reticulum plant or animal or both

Answer:

both

Question 24: Is RNA single or double stranded

Answer:

Single

Question 25: How does rough ER differ from smooth ER?

Answer:

same membranes different shapes

Question 26: Storage form of glucose used by animal cells

Answer:

glycogen

Question 27: Membrane protein with carbohydrates attached that helps cells

identify "self" and plays a role in blood types, organ transplants, and germ recognition

Answer:

Glycoprotien

Question 28: Protein found in red blood cells that carries oxygen to the body

Answer:

Hemoblobin