Botany Cell Homeostasis Review 3 Question Preview (ID: 17709)


Test Review 3. TEACHERS: click here for quick copy question ID numbers.

A cell is the smallest unit that can carry on all the processes of life.
a) True
b) False
c)
d)

Robert Hooke observed cork cells.
a) True
b) False
c)
d)

Anton van Leeuwenhoek concluded that all plants are composed of cells.
a) True
b) False
c)
d)

DNA is synthesized in the cell nucleus
a) True
b) False
c)
d)

The main difference between prokaryotes and eukaryotes is that one of them lacks a cell membrane
a) True
b) False
c)
d)

The nucleus of the cell contains mitochondria.
a) True
b) False
c)
d)

. Diffusion is the process by which molecules move from an area of lower concentration to an area of greater concentration.
a) True
b) False
c)
d)

Membranes are selectively permeable if they allow only certain substances to diffuse across them.
a) True
b) False
c)
d)

When the concentration of solutes outside the cell is equal to the concentration of solutes inside the cell, the cell solution is isotonic relative to its environment.
a) True
b) False
c)
d)

A cell with high turgor pressure is probably in a hypotonic environment.
a) True
b) False
c)
d)

. In active transport, energy is required to move a substance across a cell membrane.
a) True
b) False
c)
d)

The sodium-potassium pump moves sodium and potassium ions against the concentration gradient.
a) True
b) False
c)
d)

A concentration gradient is the difference in concentration of a substance across space.
a) True
b) False
c)
d)

Osmosis is diffusion of any substance through a membrane.
a) True
b) False
c)
d)

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