Exam 1: Development and Structure of Cells and Tissues

The umbilical system carries oxygenated blood.

Before the development of the vascular system,the vitelline system provides nutrients to the embryo.

Blood cells arise from cells called

Smooth muscle is consciously controlled.

Which organelle produces microtubules?

The ovum contains twice as many chromosomes as its parent cell.

Which type of bone formation occurs through a tight matrix of collagen fibers,which slowly calcify into bone?

Spindles present during mitosis are attached to centromeres.

The information in mRNA is translated by ribosomes located on the surface of the rough endoplasmic reticulum.

Developmental abnormalities are not associated with which number of chromosomes?

Myotome produces which of the following types of tissue?

Endoderm and ectoderm are the first two germ layers to develop.

Tissues are most susceptible to teratogens during the proliferative period.

The embryonic skeleton first forms as bone.

Melanocytes are responsible for skin pigment.

Fertilization takes place in the distal part of the uterine tube.

Which cellular component facilitates protein synthesis?

Which phase of the cell cycle is characterized as the initial resting stage?

Posttranslational modifications to proteins produced by the rough endoplasmic reticulum are accomplished by __________.

Intercalated disks are present in which type of muscle?