Biology Flashcards
Physiology is the study of ___________ ___________ that occur in the daily life of an organism.
Life processes
Movement in a plant caused by changes in turgor pressure is called _________ __________.
Nastic movement
A plant uses a process called ______________ to convert carbon dioxide and water into glucose and oxygen.
Photosynthesis
Spaces in the soil which determine how much water and air the soil containers are called __________ __________.
Pore spaces
The four components of loam include ____________, ____________, ____________, and ____________.
Gravel, sand, silt, and clay
______________ is the phenomenon that occurs when individual molecules are strongly attracted to one another.
Cohesion
Translocation is the process by which organic substances move down the ___________ of a plant.
Phloem
Substances which affect the rate of cellular reproduction and development of cells are called ___________.
Hormones
An ovule with a protective coating that encases a mature plant embryo and nutrient source is called a/an ___________.
Seed
Which of the following can a plant ignore for a short time without dying?
a. Turgor pressure
b. Transport
c. Photosynthesis
d. hydrolysis
a. Turgor pressure
A growth response to light is called
a. Thigmotropism
b. Gravotropism
c. Phototropism
d. Endotropism
Phototropism
Which of the following is not true of the xylem?
a. contains water
b. comprised of living cells
c. has thick cell walls
d. contains dissolved minerals
b. comprised of living cells
perfect flowers are flowers which have both __________ and ___________.
stamen and carpels
the by-products of hydrolysis include
a. protein and nitrogen
b. glucose and oxygen
c. carbon dioxide and water
d. pollen and ovules
c. carbon dioxide and water
the Venus’s flytrap obtains what important raw material by digesting insects ?
a. oxygen
b. carbon dioxide
c. glucose
d. nitrogen
d. nitrogen
which of the following would a biology student find in an imperfect flower?
a. carpel and stamen
b. anther and filament
c. style and anther
d. ovule and pollen
b. anther and filament
the upward movement of water in a plant involves all the following processes except
a. translocation
b. cohesion
c. tension
d. transpiration
a. translocation
maple syrup is tapped from living maple trees. From which tissue is the maple syrup extracted?
a. meristematic
b. xylem
c. endodermis
d. phloem
d. phloem
which of the following is not a plant hormone?
a. auxin
b. gibberellin
c. estrogen
d. cytokinin
c. estrogen
which is true of auxins?
a. affect mitosis
b. open the stomata
c. concentration is gravity dependent
d. control leaf budding
c. concentration is gravity dependent
the carpel of a flower contains all of the following except
a. stigma
b. anther
c. ovary
d. style
b. anther
the three parts of a pollen grain include
a. 1 tube nucleus and 2 sperm cells
b. 1 pollen sac and 2 pollen dusts
c. 1 diploid cell and 2 microspores
d. 1 embryo sac and 2 megaspores
a. 1 tube nucleus and 2 sperm cells
the embryo sac consists of a total of how many cells?
a. three
b. five
c. seven
d. nine
c. seven
which of the following contain genetic information from three haploid cells?
a. megaspore
b. cotyledon
c. pollen tube
d. endosperm
d. endosperm
