Friday SAT question

1. If Jim’s heart beats 73 times every minute. Jen’s heart beats 68 times every minute, and Leigh’s heart beats 81 times a minute, what is the average heart beat per these 3 people?

a. 73 bpm

b. 74 bpm

c. 141 bpm

d. 222 bpm

2. The Griffith family has 4 dogs. Each of the dogs eats between .9 kg and 1.3 kg of food every day. Which is an estimate of the total amount of food all 4 dogs eat every day?

a. 1 kg

b. 3 kg

c. 4 kg

d 8 kg

Thursday SAT question

When you loose water, your blood becomes more concentrated. Think about how you make a powered drink, such as lemonade. If you use the same amount of powdered drink in 1 liter of water as you do in 2 liters of water, the drinks will taste different. The lemonade made with 1 liter of water will be stronger because it is more concentrated. Losing water through sweating causes potassium and sodium to be more concentrated in the blood. The kidneys force the extra potassium out of the blood stream into the nephrons. From the nephrons, the potassium is eliminated from the body in the urine.

1. The word more concentrated in the kidney refer to

a. the same amount of water with different amounts of material dissolved in it

b. small amounts of material dissolved in samll amounts of water

c. large amounts of material dissolved in large amounts of water

d. a given amount of material dissolved in a smaller amount of water

2. Which of the following statements is a fact from the passage?

a. blood contains both potassium and sodium

b. losing too much sodium is dangerous

c. potassium and sodium can be replaced by drinking an excecise drink

d. rears contain sodium

SAT Question Wednesday

Cora is 1.5 m tall. Cora’s small intestine is 6 m long. How many times longer is Cora’s small intestine than her height?

A. 3 times longer

B. 4 times longer

C. 5 times longer

D. 6 times longer

2, There are 6 blue marbles, 2 red marbles, and 4 green marbles in abag. If someone selects one marble from the bag what is the probability that it will be blue?

a. 1/5

b. 1/4

c 1/3

d 1/2

Tuesday SAT Question

Which of the following represents the path that an impulse in a neuron travels?

a. dentrite, cell body, axon, axon terminal

b. axon, axonn terminalm cell body, dentrite

c. dentrite, nuclus, cell body, axon

d. nucleus, cell body, nucleus, axon

2. To where is an impulse that reachers an axon terminal transmitted?

a. another axon temrinal

b. the brain

c. a reflex

d. dentrites

3. What does having many dentrites allow a neuron to do?

a. to be locked into place in the body

b. to receive impulses from many other cells

c. to send impulses to surrounding cells

d. to get necessary nutrition

SAT Monday Questions

Suppose you have 50,000 flu viruses on your finger and you rub your eyes. Only 20,000 viruses enter your eyes. 10,000 dissolve in chemicals, and 10,000 are wash down into your nose. Of those, you snezze out 2,000. How many viruses are left to wash down the back of your throat and possibly start an infection?

A. 50,000

B. 10,000

C. 8,000

D. 5,000

2. In which one of the lists are the numbers in order from smallest to greatest?

a. 0.027, 0.072, 0.270, 0.720

b. 0.270, 0.072,0.720, 0.270

c. 0.072, 0.027, 0.270, 0.720

d. 0.720, 0.270, 0.072, 0.027

Sunday SAT question

Bacteria is becoming resistant to many human-made antibiotics, which means that the drugs no longer affect the bacteria. Scientist now face the challenge of developing drugs that can overcome the resistant strains of bacteria.

Antibiotics from animals are different from human-made antibiotics.These antibiotics bore holes through the membranes that surround bacterial cells, causing the cells to disintegrate and die. Bacterial membranes don’t mutate often, so they are less likely to become resistant to animal antibiotics.

1. In the passage, what does the word mutate mean?

a. to change

b. to grow

c. to form

d. to degrade

2. Based on the passage, which of the following statements is a fact?

a. bacterial membranes are on the inside of the bacterial cell

b. bacterial membranes are on the outside of a bacterial cell

c. all strains of bacteria mutate

d. bacterial membranes never change

3. Based on the passage, which one of the statements is false?

a. antibiotics from animals are different from human-made antibiotics

b. antibiotics from animals bore holes in bacterial membranes

c. bacterial membranes don’t change very often

d. bacteria rarely develop resistance to human made bacteria

Sat. Dec. 20–SAT question 2 points for all correct answers

A chronic disease is a disease that, that once develped, is always present and will not go away. Chronic bronchitis is a disease that causes the airways in the lungs to become swollen. The irritation causes a lot of mucus to develop in the lungs . As a result, the person with chronic bronchitis coughs a lot. Another chonic disease is Emphysema which destroys the tiny air sacs and the walls of the lungs. The holes in the air sacs can not heal.  Eventually the lung tissue dies and the lungs can no longer work. Smoking causes  more than 80% of all cases of emphysema  and bronchitis.

1. In the paassage, what does the word chronic mean?

A. disappearing

B. temporary

C. always present

D.  mucus filled

2. According to the passage, what disease destroys the tiny air sacs and the walls of the lungs?

A. chronic bronchitis

B. emphysema

C. chronic cough

D. cigarette smoking

3. Which is considered a true statement

A.  Holes in the tiny air sacs in the lung heal very quickly

B.   Cigarettes smoking causes more than 80% of all cases of bronchitis and emphysema

C.    Cigarette smoking does not cause chronic diseases

D.    Chronic bronchitis wil go away after a person stops smoking cigarettes

Cell Blog

How do the characteristics of living things relate to the structure and function of cells. How do the components of the cell theory relate to what you have learned about cells, give examples. Select an organelle in the animal cell and explain what could occur if that organelle malfunctions within each of your specialized cells. What will be the end result in the human body if this problem occurs?

Mitochondrial diseases

There are documented diseases that the result of the miochondria malfunctioning.  These diseases can be caused in the DNA of the cell or the mitochondria.

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Is An Anchor Responsible For Mad Cow Disease (BSE) Infections?

Chemists at ETH Zurich and the Technical University of Munich provide prion researchers with a new tool to elucidate the role played by specific anchor molecules. These complicated anchor compounds are suspected of promoting infections with BSE or Creutzfeldt-Jacob disease.

Several years ago mad cow disease was the number one topic in the media. Discussion of this disease, which is caused by prion proteins, went quiet some time ago but the case is far from being closed. Just this September, scientists reported a new form of BSE, namely the disease known as BASE. Although this has been known since 2003, researchers discovered only recently that the prion causing BASE can infect primates and possibly humans, with the disease that progresses even faster than BSE.

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