Mid Term Review: Question Preview (ID: 28983)

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The cell membrane consists of mainly of
a) carbohydrates and sugars
b) water and carbon dioxide
c) phospholipids and proteins
d) cellulose and lactose

A cell with 5% salt is placed in a beaker with 1% salt. What will happen to the cell over time? (draw a picture if it helps)
a) The cell will both gain and lose equal amounts of water; thus it will remain the same size
b) The cell will lose water and shrink
c) The cell will neither gain nor lose water
d) the cell will gain water and expand (swell)

The exchange of oxygen and carbon dioxide between the body and the air occurs in the cells of the lungs. Where would this exchange happen in the cell?
a) nucleus
b) cell wall
c) cell membrane
d) ribosomes

In a country, such as the United States, which of the following sustainability indicators (challenges) are likely?
a) Malnutrition and poor health
b) HIV and malaria
c) Dry conditions and unproductive land
d) High energy and water consumption

Which part of the cell is the site of chemical reactions responsible for metabolism
a) Cytoplasm
b) Endoplasmic reticulum
c) Ribosome
d) Golgi Apparatus

What is the function of the intestinal cell shown in the drawing below?
a) absorb nutrients from the digestive tract
b) help the organisms reproduce
c) carry carbon dioxide to the lungs
d) to fight disease in the body

Which of the following is (are) found in plant cells but not in animal cells?
a) cytoplasm
b) mitochondria
c) cell wall
d) ribosomes

DNA is important for cellular activities because DNA
a) gives instructions to the cell to make particular proteins
b) increases the solubility of nutrients
c) is the major component of cytoplasm
d) is the structural component of the cell membrane

Which function is associated with macrophages in the blood?
a) forming blood clots
b) transporting dissolved nutrients
c) carrying oxygen
d) engulfing bacteria

What is the function of DNA? It
a) forms part of the nuclear membrane
b) helps the nucleus recognize other cell organelles
c) uses oxygen to break down sugars and release energy
d) contains information/directions to make proteins

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