Bio HW questions for exam

In the human body, carbon monoxide reduces the amount of oxygen that can be transported to cells. Breathing in too much carbon monoxide will most likely result in the production of (January 2014)

Less ATP

The failure of the human body to effectively maintain dynamic equilibrium can result in (June 2013)

Disease

The blood glucose range for a healthy adult is 65-104 mg/dL. Which graph best illustrates normal blood glucose levels in a healthy adult over the course of a day? (August 2013)

2

The diagram below represents the region between two nerve cells. Cell A releases a chemical that travels to and binds with structure X on cell B. Structure X most likely represents (August 2013)

A receptor molecule

Some processes that occur in a cell are listed below. A. utilize energy B. detect changes in the environment C. rearrange and synthesize chemical compounds Which processes will all living organisms use to maintain homeostasis? (August 2013)

A, B, and C

The energy used to obtain, transfer, and transport materials within an organism comes directly from (June 2013)

ATP

Which disorder could develop in the human body when the immune system attacks a usually harmless environmental substance? (January 2014)

An allergy

What is an advantage of a change in pulse rate after exercising? (June 2014)

An increased blood flow carries excess waste products away from the active muscle cells.

An individual recovers from the common cold, which is caused by rhinovirus A. The person then becomes infected with the avian influenza virus, which causes the bird flu. Which statement best describes what will most likely happen to this person? (August 2013)

He will have the symptoms of the bird flu because he is not immune to the avian influenza virus.

Melanoma is a type of cancer in which abnormal skin cells divide uncontrollably. Some chemotherapy drugs, which stop the growth of the cancer, directly interfere with the process of (June 2013)

Mitosis

In a multicellular organism, organs carry out a variety of life functions. In a single-celled organism, these functions are performed by (June 2013)

Organelles

The diagram below represents a sequence of events that occurs in living things. Letter X represents (June 2013)

Organic molecules

Which statement best describes why pathogens are harmful? (August 2013)

Pathogens can interfere with normal life functions.

In the cells of the human body, oxygen molecules are used directly in a process that (June 2013)

Releases energy

In order for the human body to maintain homeostasis, the breakdown of glucose to release energy must be followed by the (June 2013)

Removal of waste

Base your answer to the question on the information and graph below and on your knowledge of biology. Students were asked to design a lab that investigated the relationship between exercise and heart rate. Heart rate was determined by recording the pulse rate in beats per minute. The students hypothesized that increased exercise results in an increased heart rate. The class results for the experiment are shown in the graph below. Which statement is best supported by the graph? (August 2013)

While exercising, the highest average pulse rate was 150; before exercising, the average pulse rate was 65.

In an organism, a muscle cell has the same DNA as a nerve cell, yet the cells perform different functions. This is possible because (June 2013)

different parts of the genetic instructions are used in each type of cell

Before starch can enter a cell, it must be (June 2013)

digested to form simple sugars

The action of insulin on sugar levels in the blood helps to (August 2013)

maintain dynamic equilibrium

Certain antibacterial soaps kill 99% of the bacteria present on hands. Constant use of these soaps could be harmful over time because (August 2013)

more pathogens may be resistant to the soap

The diagram below represents one type of white blood cell. This type of white blood cell ingests microbes. A function of another type of white blood cell is to (August 2013)

produce specialized molecules that mark invaders

A 6-year-old child ate a peanut butter sandwich at snack time in school. Five minutes later, her throat became swollen and she collapsed. This allergic reaction occurred because her body (June 2013)

recognized an antigen in peanut butter and produced an immune response

Fish absorb oxygen through the gills, earthworms absorb oxygen through the skin, amebas take in oxygen through the cell membranes, and cows inhale oxygen through the nasal passages into their lungs. This statement demonstrates that living things (June 2013)

rely on similar or the same processes, but accomplish them in different ways

Base your answer to the question on the information and graph below and on your knowledge of biology. Students were asked to design a lab that investigated the relationship between exercise and heart rate. Heart rate was determined by recording the pulse rate in beats per minute. The students hypothesized that increased exercise results in an increased heart rate. The class results for the experiment are shown in the graph below. The change in heart rate that occurs between 1 and 5 minutes of exercise is an adaptation that (August 2013)

results in the production of more ATP in muscle cells

In an experiment to determine the effect of exercise on pulse rate, a student checks his pulse rate before and after exercising for several minutes. The purpose of checking his pulse rate before exercising is that it (June 2014)

serves as a control for the experiment