Biology: Quiz 3: How do Plants Work?

A green house may be used to control temperature and carbon dioxide.

True

Without plants there would be no food for the earth.

True

The science which develops and studies plant varieties and production is called ...

agronomy

Lactic acid buildup during respiration is the result of:

anaerobic glycolysis

What general type of plant food is produced by photosynthesis?

carbohydrates

Hill is known for working out reactions taking place during the...of photosynthesis.

light reaction

Jan Baptista's experiments showed:

loss of soil mass < gain of plant mass gain of plant mass related to water

The electron transport of respiration occurs in organelles called...

mitochondria

Which organelle is responsible for producing energy by the Krebs cycle?

mitochondria

The chemical energy stored in ATP during photosynthesis is released during the dark phase to:

produce a carbohydrate from CO 2

Enzymes are:

proteins

Van Niel's theory, later shown to be correct, claimed that the oxygen produced by photosynthesis comes from the...

splitting of the water molecule

The oxygen which is released into the air by a plant originates from:

splitting of water molecules

A tiny body within plant cells, the chloroplast, is the power generator for life on earth.

True

Agronomists are scientists who work to develop crops that produce more or better foods.

True

Enzymes are an example of proteins.

True

Animals and humans cannot live without protein in their diet.

True

Carbon dioxide levels above normal will increase plant growth if other factors are adequate.

True

God designed plants to maintain not only their own food needs, but provide food energy for the world of living things.

True

Plants harvest only a small portion of the sun's energy.

True

Some of the most complex organic molecules are those of proteins.

True

The building blocks of proteins are...

amino acids

All proteins contain..., in addition to carbon, hydrogen, and oxygen.

nitrogen

Which conditions relate to the research of van Helmont

plant mass related to H 2 O conclusions partly correct

Priestly's experiments explained:

plants are associated with O 2 animals require O 2

Which statements apply to "food"?

storage medium for energy release energy during decomposition

The greatest number of people plants have the potential to feed, according to some agronomists is:

100 billion people

Current populations experiencing famine are primarily the result of lack of land to grow more plants.

False

Food production from plants is currently near its maximum potential -- worldwide.

False

For maximum photosynthesis, increased light intensity has greater effect than increased leaf surface area.

False

Nearly all the mass of plants comes from well fertilized soil.

False

Proteins are the building blocks of amino acids.

False

Proteins of one plant are like proteins of other plants, but animal proteins are unlike each other and plant proteins.

False

Protoplasm consists of numerous combinations of 22 proteins.

False

Ribosomes are only found in plant cells.

False

The first chemist to begin quantifying the process of photosynthesis was:

Nicholas de Saussure

Proteins are made by:

Ribosomes in plants and animals

...energy is absorbed by photosynthesis, and energy is... through respiration.

Solar, released

De Saussure's experiments demonstrated the importance of water and...to green plants.

carbon dioxide

Since carbon as an atmospheric gas is locked into a food molecule, it is termed carbon dioxide fixation. Another name for this process of photosynthesis is the...

dark reaction

The...requirements of all organisms worldwide are linked to the sun by photosynthesis.

energy

Each protein molecule is made of at least...amino acid units.

fifty

Where do plants obtain the oxygen necessary to utilize foods?

from the atmosphere

The first stage in the decomposition of glucose is called...

glycolysis

(Select all that apply.) Choose from the following list the organic compounds that are manufactured within the cytoplasm.

hormones carotenoids alcohols waxes nucleic acids fatty acids amino acids

Ingenhousz found that air would be purified only when green plants were in...

sunlight

Photosynthesis is a...reaction, and respiration is a... reaction, and they cycle continuously within the plant factory.

synthesis, decomposition

What do glucose, starch and cellulose have in common?

they are all carbohydrates they are all related to photosynthesis they are various forms of sugars

The twenty two amino acids are capable of producing _______________.

thousands of different proteins

Photosynthesis continues to increase with temperature:

true within limits

Plant respiration occurs:

primarily at night