2024--Semester 1 Biology Exam Review

2024--Semester 1 Biology Exam Review

Assessment

Flashcard

Biology

9th Grade

Hard

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15 questions

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1.

FLASHCARD QUESTION

Front

What is a common property shared by the cells of all living things?

Back

All living cells contain DNA composed of adenine, thymine, guanine, and cytosine.

2.

FLASHCARD QUESTION

Front

What is a nucleotide?

Back

A nucleotide is the basic building block of DNA, consisting of a phosphate group, a sugar (deoxyribose), and a nitrogenous base.

3.

FLASHCARD QUESTION

Front

What is the primary source of energy for nearly all life on Earth?

Back

The primary source of energy for nearly all life is the Sun.

4.

FLASHCARD QUESTION

Front

How do green plants utilize solar energy?

Back

Green plants convert radiant energy from the Sun into chemical energy in the form of organic compounds through photosynthesis.

5.

FLASHCARD QUESTION

Front

What role do cyclins play in the cell cycle?

Back

Cyclins are proteins that bind to enzymes to signal the cell to progress through stages of cell replication.

6.

FLASHCARD QUESTION

Front

What happens to cyclins at the end of the cell cycle?

Back

At the end of the cell cycle, cyclins degrade to prevent further signaling for the cell to divide.

7.

FLASHCARD QUESTION

Front

What can uncontrolled production of cyclins lead to?

Back

Uncontrolled production of cyclins can lead to the formation of tumors.

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