Domain 1 Review Question Preview (ID: 17766)


Domain 1: Macromolecules And Enzymes. TEACHERS: click here for quick copy question ID numbers.

Both lipids and carbohydrates are important in animal cells because both:
a) store energy
b) form cell walls
c) contain nitrogen
d) provide insulation

What complex macromolecule stores and communicates genetic information?
a) carbohydrates
b) nucleic acids
c) proteins
d) lipids

Which of the following statements about enzymes is not true?
a) enzymes work best at a specific pH
b) enzymes are proteins
c) all enzymes have the same shape as their substrates
d) the shape of an enzyme allows it to do its job

Many plants have waxy coatings on some surfaces. This coating reduces water loss because it is not water permeable. This waxy coating is which of the following types of organic molecules?
a) lipids
b) proteins
c) carbohydrates
d) nucleic acids

Enzyme activity can be affected by the following:
a) other chemicals
b) temperature
c) pH
d) all of the above

Which of the following types of molecules has a primary function of providing a rapidly available energy source for living things?
a) proteins
b) carbohydrates
c) fats
d) amino acids

Which of the following types of molecules provides building blocks for tissues, transports other molecules, and helps to regulate certain reactions in the human body?
a) lipids
b) fats
c) carbohydrates
d) proteins

Athletes are often concerned with how much protein they need in their diets because of the requirement of protein for growing muscles. What are the building blocks of proteins?
a) amino acids
b) monosaccharides
c) nitrates
d) nucleotides

Amylase is an enzyme found in saliva that assists in the reaction that breaks down starch. How does amylase affect the reaction?
a) it changes the products of the reaction
b) it changes the temperature of the reaction
c) it changes the speed of the reaction
d) it changes the pH of the reaction

Many plants have waxy coatings on some surfaces. This coating reduces water loss because it is not water permeable. This waxy coating is which of the following types of organic molecules?
a) carbohydrates
b) lipids
c) nucleic acids
d) proteins

Large numbers of ribosomes are present in cells that specialize in producing which of the following molecules?
a) lipids
b) steroids
c) proteins
d) glucose

If a blood cell is placed in a solution and water enters and exits the cell at the same speed the solution is said to be...
a) isotonic
b) hypertonic
c) hypotonic
d) distilled water

Which of the following organelles contains digestive enzymes?
a) vacuole
b) lysosome
c) Golgi Apparatus
d) Nucleus

Which of the following are capable of converting light energy into chemical energy?
a) peroxisomes
b) Leucoplasts
c) mitochondria
d) chloroplasts

Which of the following relationships between cell structures and their respective functions is correct?
a) cell wall: support, protection
b) chloroplasts: chief site of cellular respiration
c) ribosomes: secretion
d) lysosomes: formation of ATP

Which of the follwoing is present in a prokaryotic cell?
a) chloroplast
b) mitochondrion
c) cell membrane
d) nuclear envelope

An organism with a cell wall would have the most difficulty going through which process?
a) osmosis
b) exocytosis
c) diffusion
d) active transport

Which of the follwoing processes includes all of the others?
a) transport of an ion down its concentration gradient
b) passive transport
c) osmosis
d) facilitated diffusion

Which organelle converts sugars into energy?
a) chloroplast
b) ribosome
c) lysosome
d) mitochondria

A plant cell is placed in a hypotonic solution. What will most likely happen to the plant cell?
a) It will swell
b) It will shrink
c) it will stay the same
d) It will wilt

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