Ch 8, 7th Grade Question Preview (ID: 30638)


Plant Processes. TEACHERS: click here for quick copy question ID numbers.

Where water moves from roots and travels to all parts of a plant.
a) xylem
b) phloem
c) stomata
d) epidermal cells

Flat cells on the tops and bottoms of leaves that provide a waxy covering called the cuticle are called
a) epidermal cells
b) stomata
c) mesophyll cells
d) chlorophyll

Any change in an organism's environment that causes a response is a
a) stimulus
b) tropism
c) reaction
d) response

The growth of a plant toward or away from flight is a
a) phototropism
b) gravitropism
c) thigmotropism
d) photoperiodism

Which plants bloom when exposed to less than 10-12 hours of darkness?
a) long-day plants
b) short-day plants
c) day-neutral plants
d) roses

T/F: Some plants reproduce asexually.
a) true
b) false
c)
d)

The daughter cells produced by haploid structures in plants are called
a) spores
b) mosses
c) seeds
d) eggs

Which is an example of a seedless plant?
a) moss
b) gymnosperms
c) angiosperms
d) corn

The female reproductive structure of a seed plant where the haploid egg develops is called the
a) ovule
b) stamen
c) petal
d) sepal

The most common gymnosperms are
a) conifers
b) ferns
c) mosses
d) roses

Which is not part of the pistil?
a) filament
b) stigma
c) style
d) ovary

The part of the stamen that produces pollen grains is the
a) anther
b) filament
c) stigma
d) ovary

The response of plants to touch is
a) thigmotropism
b) photoperiodism
c) gravitropism
d) phototropism

A series of chemical reactions that convert the energy in food molecules into a usable form of energy called ATP is called
a) cellular respiration
b) photosynthesis
c) excretion
d) metabolism

Small openings in the bottom of a leaf are called
a) stomata
b) stigma
c) style
d) pores

The tissue through which a plant's food flows to all parts of a plant.
a) phloem
b) xylem
c) chlorophyll
d) mesophyll

Growth away from a stimulus is called
a) negative tropism
b) positive tropism
c) neutral tropism
d) away tropism

Plants that aren't affected by the number of hours of darkness are called
a) day-neutral plants
b) long-day plants
c) short-day plants
d) photo-neutral plants

Which plant hormone helps stimulate the ripening of fruit?
a) ethylene
b) auxins
c) gibberellins
d) cytokinins

Occurs when the life cycle of an organism alternates between diploid and haploid generations
a) alternation of generations
b) sexual reproduction
c) asexual reproduction
d) diploid-haploid alternation

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