STAAR REVIEW

Front

What is meiosis?

Back

Meiosis is the process of cell division that produces gametes (sperm and eggs) with half the number of chromosomes of the parent cell.

Front

In which human organ does meiosis occur?

Back

Meiosis occurs in the testis (in males) and ovaries (in females).

Front

What is homeostasis?

Back

Homeostasis is the ability of an organism to maintain a stable internal environment despite changes in external conditions.

Front

What is auxin?

Back

Auxin is a plant hormone that regulates growth by promoting cell elongation, particularly on the shaded side of a plant.

Front

What is phototropism?

Back

Phototropism is the growth response of a plant toward light, facilitated by the action of auxin.

Front

What must occur during the S phase of the cell cycle?

Back

During the S phase, DNA replication must occur to ensure that each daughter cell receives an identical set of chromosomes.

Front

What are the base pairing rules in DNA?

Back

In DNA, adenine pairs with thymine, and guanine pairs with cytosine.

Front

What is the role of plant hormones?

Back

Plant hormones act as chemical messengers that coordinate growth, development, and responses to environmental stimuli.

Front

What is the difference between mitosis and meiosis?

Back

Mitosis results in two identical daughter cells, while meiosis results in four genetically diverse gametes.

Front

What is geotropism?

Back

Geotropism is the growth response of a plant to gravity, with roots growing downward and stems growing upward.