What is the primary purpose of cellular differentiation?

To create specialized cells for specific functions

Which of the following best describes the relationship between tissues and organs?

Tissues and organs are the same

Organs are smaller than tissues

A stem cell in the bone marrow differentiates into a red blood cell. What is the significance of this process?

It produces cells specialized for oxygen transport

It allows the organism to grow larger

It increases the number of chromosomes

A change in the sequence of DNA bases can lead to which of the following outcomes?

A different protein being produced

No change in the protein produced

The same protein being produced

Which of the following best illustrates the hierarchical organization in multicellular organisms?

Cell → Tissue → Organ → Organ system

Organ → Cell → Tissue → Organ system

Tissue → Organ system → Cell → Organ

Organ system → Organ → Tissue → Cell

Why is mitosis important for multicellular organisms?

It allows growth and repair by producing identical cells

A mutation in the DNA sequence of a gene results in a different amino acid being incorporated into a protein. How might this affect the protein's function?

The protein may not function properly

The protein will always function better

The protein will not be affected

The protein will become a carbohydrate

Given a model of the respiratory and circulatory systems, explain how these systems interact to deliver oxygen to body tissues.

The respiratory system brings in oxygen, which the circulatory system transports to tissues

The circulatory system produces oxygen for the respiratory system

The respiratory system removes waste from tissues

The circulatory system digests oxygen

A genetic disorder is caused by a change in the DNA sequence that alters the shape of a protein. How does this support the idea that DNA structure determines protein structure?

The change in DNA leads to a change in amino acid sequence, altering protein shape

The protein is not affected by DNA

Analyze a diagram showing the nervous and muscular systems working together to move an arm. What does this illustrate about system interactions?

Systems interact to perform specific functions

Only one system is needed for movement

Systems compete with each other

A student plans an investigation to test how heart rate changes in response to exercise. Which feedback mechanism is being studied?

Negative feedback maintaining homeostasis

Positive feedback maintaining homeostasis

Explain how mitosis and cellular differentiation work together to heal a cut on the skin.

Mitosis produces new cells, and differentiation specializes them to replace damaged tissue

Differentiation produces new cells, and mitosis specializes them

Only differentiation is involved

A researcher observes that when blood calcium levels drop, the parathyroid gland releases a hormone that increases calcium levels. What does this demonstrate about feedback mechanisms?

Negative feedback restores balance to maintain homeostasis

Positive feedback increases the stimulus

Feedback mechanisms are not involved

The hormone decreases calcium levels further

Biology Regents Review #1

Authored by Denise Fanelli

Science

9th Grade

NGSS covered

Used 104+ times

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30 questions

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MULTIPLE CHOICE QUESTION

30 sec • 1 pt

What is the basic subunit that makes up DNA?

Amino acid

Nucleotide

Fatty acid

Monosaccharide

Tags

NGSS.HS-LS1-1

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

Which organelle is primarily responsible for protein synthesis in a cell?

Mitochondrion

Ribosome

Lysosome

Golgi apparatus

Tags

NGSS.HS-LS1-1

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

What is the main function of the circulatory system in multicellular organisms?

Producing hormones

Transporting nutrients and oxygen

Breaking down food

Sending electrical signals

Tags

NGSS.HS-LS1-2

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

Which of the following best describes homeostasis?

The process of cell division

The maintenance of a stable internal environment

The breakdown of glucose

The movement of water across a membrane

Tags

NGSS.HS-LS1-3

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

What is the result of mitosis in a human cell?

Four genetically different cells

Two identical daughter cells

One cell with double the DNA

Two cells with half the DNA

Tags

NGSS.HS-LS1-4

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

Which base pairs with adenine in DNA?

Guanine

Thymine

Cytosine

Uracil

Tags

NGSS.HS-LS1-1

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

Which system is responsible for removing waste products from the blood in humans?

Digestive system

Excretory system

Respiratory system

Nervous system

Tags

NGSS.HS-LS1-2

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Biology Regents Review #1

What is the basic subunit that makes up DNA?

Which organelle is primarily responsible for protein synthesis in a cell?

What is the main function of the circulatory system in multicellular organisms?

Which of the following best describes homeostasis?

What is the result of mitosis in a human cell?

Which base pairs with adenine in DNA?

Which system is responsible for removing waste products from the blood in humans?

Which feedback mechanism increases the original stimulus?

What is the primary purpose of cellular differentiation?

Which molecule carries the genetic code from DNA to the ribosome for protein synthesis?

Access all questions and much more by creating a free account

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