Biology Quiz 3 - How do Plants work?

Three important plant experimentation discoveries by scientists within the last 300 years are:

1. oxygen production by plants restores air 2. light and green plants produce oxygen 3. light and dark reactions of photosynthesis

Problems of world hunger are due to the green plant's inefficiency in food production. True or False?

False

Proteins are made directly from carbohydrates, the first products of photosynthesis. True or False?

False

What factors speed up or slow down the rate of photosynthesis?

- amount of light - amount of nutrients - amount of carbon dioxide - temperature - density of chlorophyll

Jan Baptista's experiments showed:

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

Priestly's experiments explained:

- plants are associated with O2 - animals require O2

What is the function(s) of ATP?

- stores the initial energy released by respiration - provides the energy for all cytoplasmic chemical synthesis

What conditions and/or raw materials are necessary for photosynthesis to occur?

1. light 2. H2O 3. chlorophyll 4. CO2

A plant makes its own proteins but an animal synthesizes the proteins it consumes as food. True or False?

False

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

False

Photosynthesis and respiration processes show plant cells to be very simple in design. True or False?

False

Photosynthesis consists of only the light reaction. True or False?

False

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

Nicholas de Saussure

The full use of the green plant's built-in design and potential has not yet been reached. True or False?

True

(Select all that apply.) What are the basic processes which use the energy of respiration? 2. synthesis 3. mechanical 4. reproduction 5. tissue repair 6. maintenance

all of them

The building blocks of proteins are:

amino acids

The threadlike objects in the nucleus are called ______________________ and carry the ____________ or inheritance units.

chromosomes, genes

The first part of photosynthesis within the chloroplast occurs in the ____________ and the second in the _____________ of the chloroplast.

grana, stroma

Match the associations with the "light" and "dark" phases of photosynthesis: solar energy = CO2 intake = release of energy = storage of energy = release of O2 = release of water = ATP = forms carbohydrates =

light dark dark light light dark light dark

Green plants are the energy link between the sun's energy and the energy needs of _____________

people

Green plants utilize solar energy through _________________________ and release energy through ___________________

photosynthesis, respiration

Plant respiration occurs:

primarily at night

The chemical energy stored in ATP during photosynthesis is used to:

produce a carbohydrate from CO2

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

splitting of water molecules

What is cellular respiration?

the biological process of cells using stored food energy to manufacture ATP to do work in cell activities

Why do animals and humans need proteins in their diet?

they break down protein into amino acids needed for their particular protein synthesis