Quiz about Biology Regents Review: Structure & Function

Question 1

Maintaining body temperature is an example of a:

Accepted Answer

negative feedback loop

Answer

positive feedback loop

Question 2

Homeostasis

Accepted Answer

is the maintenance of a relatively stable internal environment and often incorporates a form of feedback regulation

Answer

allows for a wildly fluctuating internal environment

Answer

is impossible in vertebrates

Answer

is the maintenance of a relatively stable external environment and often incorporates a form of feedback regulation

Question 3

What type of feedback loop is shown?

Accepted Answer

positive

Answer

negative

Answer

neutral

Question 4

Humans have ___ for body temperature, blood glucose concentrations, electrolyte concentrations, pH levels, tendon tension and variables.

Accepted Answer

set points

Answer

positive feedback mechanisms

Answer

a wide internal range

Answer

no regulation

Question 5

When you get cut, your skin cells release hormones that signal platelets to come and stop the bleeding. Platelets then release more hormones that signal even more platelets to help stop bleeding. The hormone signals continue until the cut is closed. This is an example of what type of feedback?

Accepted Answer

Positive Feedback Response

Answer

Negative Feedback Loop

Question 6

Chains of amino acids fold into ______________.

Accepted Answer

proteins

Answer

traits

Answer

DNA

Answer

nucleotides

Question 7

Genetic info flows in one direction. Which best represents this flow?

Accepted Answer

DNA-RNA-protein

Answer

DNA-protein-RNA

Answer

Protein-RNA-DNA

Answer

RNA-protein-DNA

Question 8

The process to go from mRNA to a protein is called ____

Accepted Answer

translation

Answer

transcription

Answer

rRNA

Answer

replication

Question 9

What is the term for a three-nucleotide sequence that codes for an amino acid?

Accepted Answer

codon

Answer

base

Answer

amine

Answer

serine

Question 10

which process is shown?

Accepted Answer

translation

Answer

diffusion

Answer

repiration

Answer

recombination

Question 11

Double stranded DNA is unzipped, and one strand is used as a template to form Messenger RNA.

Accepted Answer

Transcription

Answer

Translation

Answer

Replication

Answer

Mitosis

Question 12

A genetic mutation resulted in a change in the sequence of amino acids of a protein, but the function of the protein was not changed. Which statement best describes the genetic mutation?

Accepted Answer

It was a silent mutation that caused a change in the DNA of the organism.

Answer

It was a silent mutation that caused a change in the phenotype of the organism.

Answer

It was a nonsense mutation that caused a change in the DNA of the organism.

Answer

It was a nonsense mutation that caused a change in the phenotype of the organism.

Question 13

What is a Gene?

Accepted Answer

A segment of DNA that codes for a protein

Answer

A segment of RNA that codes for a protein

Answer

A chromosome

Answer

Your genome

Question 14

How can a person's muscle cells have the same exact DNA sequences as their nerve cells even though the look and perform completely different?

Accepted Answer

The proteins expressed in each cell are different

Answer

The two different cells become mutated

Answer

They actually have different DNA in the two types of cells.

Answer

The genome of the different cells changes

Question 15

What is Cell differentiation?

Accepted Answer

The process of cells becoming specialized for specific functions

Answer

The process of cell divison

Answer

The process of cells becoming identical

Answer

The process of cells becoming mutated

Question 16

Which of the following best describes stem cells?

Accepted Answer

Original human cells that are able to develop into specialized cells

Answer

Cells that have already differentiated

Answer

Cells that cannot undergo cell division

Answer

Cells that have been mutated

Question 17

Specialized cells such as muscle, blood, or nerve cells are caused by cell differentiation led by

Accepted Answer

Environmental Factors

Answer

nucleus

Answer

ribosomes

Answer

plasma membrane

Question 18

Cells differentiate to perform different functions because

Accepted Answer

different genes are turned on or off inside that cell

Answer

all genes are turned on inside that cell

Answer

all genes are turned off inside that cell

Answer

different genes are turned on inside that cell

Question 19

What is the function of an enzyme?

Accepted Answer

enzymes speed up chemical reactions

Answer

enzymes break themselves into small pieces

Answer

enzymes slow down chemical reactions

Answer

enzymes combine products to form reactants

Question 20

Enzymes are composed of which of the following monomers?

Accepted Answer

amino acids

Answer

carbohydrates

Answer

nucleotides

Answer

monosaccharides

Question 21

What is the primary difference between negative and positive feedback mechanisms?

Accepted Answer

Negative feedback mechanisms stabilize to reach homeostasis, while positive feedback mechanisms amplify a change.

Answer

Negative feedback mechanisms require energy, while positive feedback mechanisms do not.

Answer

Positive feedback mechanisms stabilize physiological variables, while negative feedback mechanisms amplify a change.

Answer

Negative feedback mechanisms are only found in humans, while positive feedback mechanisms occur in all animals.

Question 22

What is the function of GUARD cells in plants?

Accepted Answer

Control the opening & closing of the stomata

Answer

Allow gas exchange

Answer

Contain DNA

Answer

Nucleus

Question 23

What is a STEM CELL?

Accepted Answer

Cells that can differentiate into specialized cells.

Answer

Cells found in the stems of plants.

Answer

Cells that control your genes to be expressed.

Answer

Cells that provide nutrients to your blood.

Question 24

What does cell differentiation mean?

Accepted Answer

Process by which a less specialized cell becomes a more specialized cell.

Answer

Process by which a cell absorbs nutrients.

Answer

Process by which a specialized cell becomes a less specialized cell.

Answer

Process by which cells enter the cell cycle.

Question 25

Everything in your body is controlled by....

Accepted Answer

DNA

Answer

Chloroplasts

Answer

Cancer

Answer

Mitosis

Question 26

______ are cells that are involved in sexual reproduction.

Accepted Answer

gametes

Answer

B cells

Answer

somatic cells

Answer

epithelial cells

Question 27

Gametes divide through ________

Accepted Answer

Meiosis

Answer

DNA replication

Answer

Mitosis

Answer

Cellular Respiration

Question 28

Meiosis

Accepted Answer

ALL ARE TRUE

Answer

Reduces the number of chromosomes by one half

Answer

Produces unique sex cells

Answer

Allows traits to be passed on to offspring

Answer

Increases genetic variation

Question 29

What is it called when a sperm and egg meet?

Accepted Answer

fertilization

Answer

meiosis

Answer

cell division

Answer

mitosis

Question 30

Meiosis produces 4 daughter cells, the chromosome number is _______.

Accepted Answer

haploid

Answer

diploid

Question 31

What causes genetic variation in meiosis?

Accepted Answer

crossing over of chromosomes

Accepted Answer

independent assortment

Answer

chromosomes lining up

Answer

chromosomes pulling apart

Question 32

The exchange of chromosome segments between sister chromatids is called ________.

Accepted Answer

Crossing over

Answer

Law of independent assortment

Answer

Meiosis

Answer

Mitosis

Question 33

Why would it be important to replicate DNA before a cell divides in mitosis or meiosis?

Accepted Answer

In order for genetic information to be transferred into daughter cells.

Answer

In order for the cell to be able to increase in size.

Answer

In order for the DNA to be contained in the nucleus.

Answer

In order for the cell to re-order the DNA sequencing in the new cells.

Question 34

What is the purpose of Mitosis?

Accepted Answer

Growth of an organism and Repair of damaged tissue

Answer

To help the body get rid of extra cells

Answer

To increase the amount of classwork you have to do

Answer

To get rid of the nucleus

Question 35

What do the cells look like at the end of mitosis?

Accepted Answer

identical to the original cell

Answer

different from original cell

Answer

similar to the original cell

Answer

none of these

Question 36

This cell organelle helps organisms maintain homeostasis by controlling what substances may enter or leave cells.

Accepted Answer

cell membrane

Answer

vacuole

Answer

nucleus

Answer

cell wall

Question 37

When particles move from areas of high concentration to areas less concentrated, this has taken place.

Accepted Answer

diffusion

Answer

mitosis

Answer

endocytosis

Answer

photosynthesis

Question 38

oxygen is not involved in which process?

Accepted Answer

lactic acid fermentation

Answer

photosynthesis

Answer

aerobic respiration

Question 39

Which of the following would affect the rate of photosynthesis?

Accepted Answer

all of the above

Answer

sunlight

Answer

water

Answer

carbon dioxide

Question 40

How can photosynthesis be related to cellular respiration?

Accepted Answer

What's produced by one is needed for the other

Answer

They both produce the same products

Answer

They both have the same reactants (need the same things)

Answer

These 2 processes have nothing in common

Question 41

The products of cellular respiration

Accepted Answer

CO2, H2O, ATP

Answer

CO2

Answer

CO2, H2O

Answer

CO2, H2O, glucose

Question 42

What is the correct equation for cellular respiration?

Accepted Answer

6O₂ + C₆H₁₂O₆ -> 6CO₂ + 6H₂O + Energy

Answer

6O₂ + C₆H₁₂O₆ + Energy -> 6CO₂ + 6H₂O

Answer

6CO₂ + 6H₂O -> 6O₂ + C₆H₁₂O₆ + Energy

Answer

6CO₂+ 6H₂O + Energy -> 6O₂ + C₆H₁₂O₆

Biology Regents Review: Structure & Function

Create a free account and access millions of resources

Similar Resources on Wayground

Popular Resources on Wayground

Discover more resources for Science