Biology Old material Unit 1

The nucleic acids DAN and RNA are composed of monomers called

Nucleotides

The parts of the experiment that remain the same throughout are the a. constants b. responding variables c. manipulated variables d hypothesis

a. constants

When materials pass into and out of the cell at equal rates, there is no net change in concentration inside the cell. The cell is in a state of a. dynamic equilibrium b. metabolism c. imbalance d. inertia

a. dynamic equilibrium

Macromolecule with its building block. Lipid a. glycerol and fatty acids b. nucleotide c. amino acid d. monosaccharide

a. glycerol and fatty acids

Enzymes are biological catalysts. In addition to speeding up the rate of chemicals reactions, enzymes a. lower the activation energy of biochemical reactions b. control the transport of materials in and out of cells c. provide energy for chemicals reactions in the cell d. absorb oxygen from the air.

a. lower the activation energy of biochemical reactions

Enzymes are biological catalysts. In additional to speeding up the rate of chemicals reactions, enzymes a. lower the activation energy of biochemical reactions b. control the transport of materials in and out of the cell c. provide energy for chemical reactions in the cell d. absorb oxygen from the air.

a. lower the activation energy of biochemical reactions

Heterotroph a. organisms that obtain energy from the food they eat b. organisms that can make their own food

a. organisms that obtain energy from the food they eat

Many plants have waxy coatings on the surface. This coating reduces water loss because it is not water permeable. This coating is which of the following types of organic molecules? a. carbohydrate b. lipid c. protein d. nucleic acid

b. lipid

Which of the following is a function of lipids? a. structure of the skin b. long term energy storage c. the structure of cells walls d. the formation of enzymes

b. long term energy storage

All of the following are jobs of the roots EXCEPT a. anchor the plant b. make sugar c. take in water d. store sugar

b. make sugar

Macromolecule with its building block. Nucleic Acid a. glycerol and fatty acids b. nucleotide c. amino acid d. monosaccharide

b. nucleotide

Autotroph a. organisms that obtain energy from the food they eat b. organisms that can make their own food

b. organisms that can make their own food

Enzymes are biological catalysts. In addition to speeding up the rate of chemical reactions enzymes

lower the activation energy of biochemical reactions

Glucose, fructose and galactose are simple sugars also known as

monosaccharides

the ability for water molecules to surround an ion

polarity

What term describes the structure of the DNA molecule?

twisted double helix

Photosynthesis occurs in a plant cell's a. chloroplasts b. staments c. filaments 4. tubers

a. chloroplasts

Oxygen produced during light dependent reaction is a. used in the Clavin Cycle to make sugar b. joined with NADPH to make water c. is released into the atmosphere d. none of these, oxygen is NOT produced by the light dependent reactions

C. is released into the atmosphere

What property of water allows water to move up a tube?

Capillary action

the forces between molecules working together to hold the surface tension of the droplet of water

Cohesion

Which is the site of cellular respiration?

Mitochondrion

Your muscle cells use this during rapid exercise when oxygen is used a. alcohol fermentation b. lactic acid fermentation

b. lactic acid fermentation

the solid form of water is less dense than the liquid form of water

Water expands when frozen

Bacteria and yeast use this to make beer and wine a. alcohol fermentation b. lactic acid fermentation

a. alcohol fermentation

Proteins involved in facilitated diffusion are a. carrier proteins b. receptor proteins c. Both a and b d. none of the above

a. carrier proteins

Which of these supports the cell theory as it is stated today? a. New cells are produced by division of existing cells b. all organisms are unicellular c. cell must contain a nucleus d. not all cells are alive

a. New cells are produced by division of existing cells

Because cellular respiration requires oxygen it is said to be a. aerobic b. anaerobic

a. aerobic

The attraction of the hydrophobic tails to each other can be attributes to a. their polar characteristic b. the phosphate group c. their negative attraction d. their non polar characteristic

a. their polar characteristic

Since fermentation does not require oxygen it is said to be a. aerobic b. anaerobic

b. anaerobic

The difference in concentration of a solute from one region to another is called a. dynamic equilbrium b. concentration gradient c. homeostasis d. Brownian movement

b. concentration gradient

When a cell needs to get rid of waste products and push them OUT OF THE CELL, which term best describes the process by which cells release substances from the cell? a. phagocytosis b. exocytosis c endocytosis d. pinocytosis

b. exocytosis

Which is the following is a function of a carbohydrate? a. forms the cell wall b. forms the cell membrane c. gene expression d. regulates enzymes

b. forms the cell membrane

This should be written in and IF and THEN format a. observation b. hypothesis c. experiment d. conclusion

b. hypothesis

An example of _______ transport would be ______ in which molecules that are too large or insoluble to the cell membrane's phospholipid bilayer would use protein channels to help move from an area of high concentration to an area of low concentration. a. passive...pumps b. passive...facilitated diffusion c. active...pumps d. passive...osmosis e. active...diffusion

b. passive...facilitated diffusion

In which structure would you find a nucleus? a. bacterial cell b. plant cell c. prokaryote d. virus

b. plant cell

Which of the following would likely move through the lipid bilayer of a plasma membrane most rapidly? a. large and hydrophobic b. small and hydrophobic c. large polar d. ionic

b. small and hydrophobic

Two types of nucleic acids are a. chlorophyll and retinal b. lipids and sugars c. DNA and RNA d. glucose and glycogen

c. DNA and RNA

Which movement of substances through a cell membrane against a concentration gradient requires energy? a. osmosis b. diffusion c. active transport d. facilitated diffusion

c. active transport

The function of this protein channel is to a. strengthen the outer boundary of the cell b. connect reproductive cells during fertilization c. allow certain substances to enter or leave the cell d. exchange organelles or chromosomes between specialized cells

c. allow certain substances to enter or leave the cell

Macromolecule with its building block. Protein a. glycerol and fatty acids b. nucleotide c. amino acid d. monosaccharide

c. amino acid

Which property of water enable insects to walk on water? a. adhesion b. universal solvent c. cohension d. capillary action

c. cohension

A person fills a drinking glass with water until the water is bulging slightly over the glass rim. The property of water that prevents the water from spilling is a. PH b. osmosis c. cohesion

c. cohesion

What is the name of the bonds found in proteins? a. hydrogen b. ionic c. covalent d. peptide

c. covalent

The water within xylem vessels moves toward the top of a tree (long distances) as a result of a. active transport of ions into the vascular bundle b. atmospheric pressure on roots c. evaporation of water through stoma d. the force of root pressure

c. evaporation of water through stoma

The water within xylem vessels moves towards the top of a tree as a result of a. active transport b. atmospheric pressure on roots c. evaporation of water through stoma d. the force of root pressure

c. evaporation of water through stoma

If oxygen is not present, glycolysis is followed by a. Krebs cycle b. electron transport c. fermentation

c. fermentation

Of oxygen is not present, glycolysis is followed by a.kreb cycle b. electron transport chain c. fermentation

c. fermentation

_____is the first step in cellular respiration that begins releasing energy stored in glycolysis. A. alcohol fermentation b. lactic acid fermentation c. glycolysis d. electron transport chain

c. glycolysis

A student is making a model to demonstrate how cells respond to solutions with varying concentrations of salt and water. She soaked a kidney bean in distilled water until it started to swell. For the demonstration, she wants to put the swollen bean in a solution that would cause the bean to shrivel. In what kind of solution should she put the swollen bean? a. hypotonic b. basic c. hypertonic d. acid

c. hypertonic

Oxygen produced during the light dependent reaction is a. used in the calvin cycle to make sugar b. joined with the NADPH to make water c. is released into the atmosphere d. none of these, oxygen is not produced during light dependent reaction

c. is released into the atmosphere

Osmosis is a type of a. active transport b. facilitated diffusion c. passive transport d. endocytosis

c. passive transport

Water is what type of molecule? a. covalent b. ionic c. polar d. non polar

c. polar

The interior portion of a cell membrane forms a non polar zone that a. allows polar molecules to pass through the membrane b. allows food to pass through the membrane c. prevents ions and most large molecules from passing through the membrane d. none of the above.

c. prevents ions and most large molecules from passing through the membrane

The interior portion of a cell membrane forms a non polar zone that a. allows polar molecules to pass through the membrane b. allows food to pass through the membrane c. prevents ions and most large molecules from passing through the membrane d. none of the above

c. prevents ions and most large molecules from passing through the membrane

The plant structure that control the exchange of gases in and out of a leaf are the a. veins b. anthers c. stomatas d. stigmas

c. stomatas

An experiment was done to see which of five different brands of paper towels work best in cleaning up a pop spill. Which of the following is the independent variable? A. the size of the pop spill b. How well the pop spill gets cleaned up c. The temperature of the pop d. The different brands of paper towels e. The type of pop used.

d. The different brands of paper towels

This property is created due to adhesion and cohesion. a. adhesion b. high heat of fusion c. high heat of vaporization d. capillary action

d. capillary action ?

One of the carbon compounds found in a cell has twice as many hydrogen atoms as oxygen atoms. This compound most likely belongs to the group of substances known as a. nucleic acids b. lipids c. proteins d. carbohydrates

d. carbohydrates

Glucose diffuses slowly through artifical phospholipid bilayers. The cells lining the small intestine, however rapidly move large quanties of glucose from the glucose-rich food into their glucose poor cytopalsm. Using this information which transport mechanism is most probably functioning in the intestinal cells. a. simple diffusion b. active transport pumps c. exocytosis d. facilitated diffusion

d. facilitated diffusion

The following evidence contributes to the theory of endosymbiosis EXCEPT a. mitochondria b. organelles possessing two membranes c. the chloroplasts enzymes and transport systems similar to bacteria d. free ribosomes creating proteins

d. free ribosomes creating proteins

What are the membrane structures that function in active transport? a. peripheral proteins b. carbohydrates c. cholesterol d. integral proteins

d. integral proteins

What are the membrane structures that function in active transport? a. peripheral proteins b. carbohydrates c. cholesterol d. integral proteins

d. intergral proteins

Macromolecule with its building block. Carbohydrate a. glycerol and fatty acids b. nucleotide c. amino acid d. monosaccharide

d. monosaccharide

A student conducts an experiment by collecting gas given off by a green plant in bright sunlight at room temperature. The gas being collected is probably a. ATP b. water vapor c. carbon dioxide d. oxygen

d. oxygen

A students conducts an experiment by collecting the gas given off by a green plant in bright sunlight at room temperature. The gas being collected is probably a. ATP b. water vapor c. carbon dioxide d. oxygen

d. oxygen

What elements make up water? a. oxygen and carbon b. oxygen and calcium c. oxygen and helium d. oxygen and hydrogen

d. oxygen and hydrogen

Which elements make up water? a. oxygen and carbon b. oxygen and calcium c. oxygen and helium d. oxygen and hydrogen

d. oxygen and hydrogen

A chemist is studying the effects of minerals on plant growth. She knows that phosphorus stimulates plant growth. She decides to test the effects of various phosphorous concentrations on plants every 5 days over a 20 day period. What is the INDEPENDENT variable? a. time of the experiment b. amount of plant growth c. types of plants d. phosphorus concentrations

d. phosphorus concentrations

What of the following is a function of a carbohydrate? a. forms the cell wall b. forms the cell membrane c. gene expression d. regulates enzymes

d. regulates enzymes

The four organic molecules of life include all the following EXCEPT a. proteins b. carbohydrates c. nucleic acids d. salts e. lipids

d. salts

What is the ultimate source of energy that AUTOTROPHS use to produce their own food? a. water b. carbohydrate c. soil d. sun

d. sun

Plants store glucose in the form of a polysaccharide called

glycogen

Which is the function of lipids?

long term energy storage

The interior portion of a cell membrane forms a non polar zone that a. allows polar molecules to pass through the membrane b. allows food to pass through the membrane c. prevents ions and most large molecules from passing through the membrane d. none of the above

prevents ions and most large molecules from passing through the membrane.