BIO 1404 TEST 2 : UNIVERSITY OF TEXAS
1. Which organelle is the primary site of ATP synthesis in eukaryotic cells?
A) lysosome
B) vacuole
C) mitochondrion
D) Golgi apparatus
E) Peroxisome
2 . Which of these can rapidly pass directly through the phospholipids of the
plasma membrane?
A) Amino acids
B) Estrogen
C) Water
D) H+
E) Glucose
3. Growth factors, stimulate nearby cells to grow and divide. This type of
__________ signaling is known as ______________ signaling.
A) Local, endocrine,
B) Local, synaptic
C) Local, paracrine
D) Long-distance, paracrine
E) Long-distance, endocrine
4. Which of these proteins are embedded in the hydrophobic portion of the lipid
bilayer?
A) peripheral proteins
B) glycolipids
C) fibronectins
D) transmembrane proteins
, E) collagen
5. What locks all transmembrane proteins in the bilayer? This question was not
worded properly so you all got credit
A) chemical interactions that form between the phospholipids and
the proteins
B) hydrophobic interactions between nonpolar amino acids of the proteins and
the aqueous environments of the cell
C) attachment to the cytoskeleton
D) the addition of sugar molecules to the protein surface facing the external
environment
6. The movement of sodium ions from an area of higher concentration to an
area of lower concentration is called__.
A) active transport
B) osmosis
C) facilitated diffusion
D) phagocytosis
E) passive transport
7. If a cell placed in distilled water it will,
A) shrivel up.
B) swell.
C) lose water.
D) result in no net diffusion of water molecules
8. Which of the following is NOT a cellular response to a signal that is elicited as
result of a signal transduction in mammalian cells?
A) Hormone Secretion
1. Which organelle is the primary site of ATP synthesis in eukaryotic cells?
A) lysosome
B) vacuole
C) mitochondrion
D) Golgi apparatus
E) Peroxisome
2 . Which of these can rapidly pass directly through the phospholipids of the
plasma membrane?
A) Amino acids
B) Estrogen
C) Water
D) H+
E) Glucose
3. Growth factors, stimulate nearby cells to grow and divide. This type of
__________ signaling is known as ______________ signaling.
A) Local, endocrine,
B) Local, synaptic
C) Local, paracrine
D) Long-distance, paracrine
E) Long-distance, endocrine
4. Which of these proteins are embedded in the hydrophobic portion of the lipid
bilayer?
A) peripheral proteins
B) glycolipids
C) fibronectins
D) transmembrane proteins
, E) collagen
5. What locks all transmembrane proteins in the bilayer? This question was not
worded properly so you all got credit
A) chemical interactions that form between the phospholipids and
the proteins
B) hydrophobic interactions between nonpolar amino acids of the proteins and
the aqueous environments of the cell
C) attachment to the cytoskeleton
D) the addition of sugar molecules to the protein surface facing the external
environment
6. The movement of sodium ions from an area of higher concentration to an
area of lower concentration is called__.
A) active transport
B) osmosis
C) facilitated diffusion
D) phagocytosis
E) passive transport
7. If a cell placed in distilled water it will,
A) shrivel up.
B) swell.
C) lose water.
D) result in no net diffusion of water molecules
8. Which of the following is NOT a cellular response to a signal that is elicited as
result of a signal transduction in mammalian cells?
A) Hormone Secretion
