FREE BIOLOGY AND STUDY GAMES ABOUT UNIT 4 VOCAB

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FREE BIOLOGY AND STUDY GAMES ABOUT UNIT 4 VOCAB

EXAM QUESTIONS

Actual Qs and Ans Expert-Verified Explanation

This Exam contains:

-Guarantee passing score -21 Questions and Answers -format set of multiple-choice -Expert-Verified Explanation

Question 1: feedback

Answer:

response in a system

Question 2: positive feedback

Answer:

where an end product of a process speeds the process up

Question 3: target cell

Answer:

cell that receives the signal

Question 4: signaling

Answer:

process where cells communicate with one another

Question 5: receptor protein

Answer:

cells that receive and convert signals

Question 6: characteristics of life

Answer:

characteristics that all living organisms share with one another

Question 7: Phosphorylation

Answer:

process where ATP is generated from ADP and phosphate through chemiosmosis

Question 8: Signal Transduction

Answer:

linkage of a chemical stimulus to a specific cellular response

Question 9: signal amplification

Answer:

mechanism that increases a signal

Question 10: cell cycle

Answer:

sequence of events of the life a cell

Question 11: cell division

Answer:

reproduction of cells

Question 12: Secondary Messenger

Answer:

nonprotein, water soluble ion or molecule, relays signal to a cell's interior in response to a signaling molecule bound by a signal receptor protein

Question 13: negative feedback

Answer:

form of regulation where the accumulation of one end product slows the process of that system

Question 14: cancer

Answer:

illness that is caused by an uncontrolled division of cells

Question 15: mitosis

Answer:

process where nuclear division occurs in eukaryotic cells divided in five stages

Question 16: Response

Answer:

change in a specific cellular activity brought y a transduced signal from outside the cell

Question 17: cyclin

Answer:

cellular protein that occurs in a cyclically fluctuating concentration and plays an important role in regulating the cell cycle

Question 18: classification

Answer:

a system where there are certain types of categories

Question 19: Ligand

Answer:

a molecule that binds specifically to another molecule, usually a larger one

Question 20: asexual reproduction

Answer:

offspring from a single parent that occurs without the gametes

Question 21: interphase

Answer:

period in cell cycle where the cell is not dividing