Jepordy

Question 1

Mark the correct order from the simplest to the most complex level.

Answer 1

Atom, molecule, cell, tissue, organ, organ system, organism

Question 2

The maintenance of a relatively constant internal environment in humans is called _____.

Answer 2

Homeostasis

Question 3

◦Which of the following controversial issues relates to human biology at the cellular level?
a.The supply of organs for transplant
b.The role of mitochondrial DNA
c.Stem cell research
d.Mandatory childhood vaccines

Answer 3

c. Stem cell research

Question 4

In a scientific experiment, a control group and an experimental group should be designated, and the control group should ______.
a.be treated with the drug
b.be treated with the drug and the placebo
c.be treated with the placebo only
d.know which group has received the drug

Answer 4

c. be treated with the placebo only

Question 5

What is science’s contribution to society?

Answer 5

Science improves technology and the human physical condition

Question 6

Isotopes have a different number of _____.

Answer 6

Neutrons

Question 7

◦Hydrogen bonds are essential for life; they are weak chemical bonds, because they can be broken when ____.
a.temperature increases
b.temperature falls below zero
c.pH changes
d.a and c are correct

Answer 7

d. a and c are correct
temp increases and ph changes

Question 8

Which of the following is an organic molecule?
a.Water
b.Carbon dioxide
c.Glucose
d.Ferric oxide

Answer 8

c. Glucose

Question 9

◦What carbohydrate is used most often as an energy source in cells? ◦
a.Glucose
b.Maltose
c.Sucrose
d.Cellulose

Answer 9

a. Glucose

Question 10

What molecule is a nucleic acid (this molecule controls protein synthesis and storage genetic information)? a.DNA
b.RNA
c.Proteins
d.ATP

Answer 10

a. DNA

Question 11

What is the major difference between eukaryotic cells and prokaryotic cells?

Answer 11

Eukaryotic cells have membrane-bound organelles.

also good to know: Eukaryotic cells are the basis for both unicellular and multicellular organisms. In contrast, prokaryotic cells do not have any membrane-bound organelles and are always part of unicellular organisms. Both prokaryotic and eukaryotic cells have similar features, like ribosomes, genetic material, a cytoplasm, and plasma membranes. There are two primary types of eukaryotic cells: animal and plant cells. The human body contains various types of eukaryotic cells, including neurons, intestinal cells, and blood cells.

Question 12

◦Which biological molecule is not a part of a cell’s membrane? ◦
a.Phospholipids
b.Cholesterol
c.Proteins
d.Nucleic acids

Answer 12

d. Nucleic acids

Question 13

◦The movement of water across a membrane from an area of low solute concentration to an area of high solute concentration is known as ____.

Answer 13

Osmosis

Question 14

if a cell lacked ribosomes, it would not be able to _____?

Answer 14

Synthesize proteins

Question 15

◦The organelle responsible for phagocytosis, filled with digestive enzymes, is the _____.

Answer 15

lysosomes

also phagocytosis, process by which certain living cells called phagocytes ingest or engulf other cells or particles.

Question 16

◦Which of the following is a correct feature of the skeletal system? ◦
a.Mature bones never change during adulthood.
b.Ligaments attach bones together.
c.Bones are a storage site for sodium.
d.Arthritis is weakening of bone tissue.

Answer 16

b. Ligaments attach bones together.

Question 17

The bone that covers and protects the knee joint is the ____?

Answer 17

Patella

Question 18

What hormone causes calcium to be released from bone and increases calcium in blood?

Answer 18

PTH

also : Maybe they could at least tell us wtf PTH stands for. Parathyroid hormone (PTH) is a hormone your parathyroid glands release to control calcium levels in your blood. It also controls phosphorus and vitamin D levels. If your body has too much or too little parathyroid hormone, it can cause symptoms related to abnormal blood calcium levels. Here’s some good insight if found Bones: Parathyroid hormone stimulates the release of small amounts of calcium from your bones into your bloodstream.Kidneys: Parathyroid hormone enables the production of active vitamin D (calcitriol) in your kidneys. PTH also signals your kidneys to retain calcium in your body rather than flushing it out through your urine.Small intestine: Parathyroid hormone signals your small intestine to absorb more calcium from the food you eat.

Question 19

Which joint permits the greatest range of mothion of any articulation or joint?

Answer 19

Shoulder

Question 20

◦Which of the following is a feature of the axial skeleton? ◦
a.The pelvic girdle is a component.
b.It protects the spinal cord.
c.The joints of the axial skeleton are immovable.
d.Its bones are categorized as long bones.

Answer 20

b. protects the spinal cord

Question 21

What is the primary contractile unit of muscle?

Answer 21

The sarcomere

also: The fundamental repeat unit within muscle that is responsible for contraction is the sarcomere. The sarcomere consists of a bundle of myosin-containing thick filaments flanked and interdigitated with bundles of actin-containing thin filaments

Question 22

what is the main fuel of energy for muscle contraction?

Answer 22

Glucose

Question 23

◦Smooth muscle is involuntary and _____. ◦
a.many nuclei are present
b.single nucleus is present
c.striations are present
d.intercalated disc is present

Answer 23

b. single nucleus is present

Question 24

◦Which of the following occurs during contraction? ◦ a.Calcium enters the sarcoplasmic reticulum.
b.Myosin heads form cross-bridges with actin. c.Troponin-tropomyosin binds ATP.
d.Calcium binds myosin.

Answer 24

b. Mysoin heads form cross-bridges with actin

Question 25

◦The type of contraction in which the tension rises, but the muscle does not change length, is an _____.

Answer 25

Isometric Contraction

Question 26

Where in the skin are the tactile receptors found? (which layer)

Answer 26

Dermis