ati teas 7

Which of the following is a substance that the kidneys remove from the blood during filtration?

Salts

Which of the following is the basic contractile unit of the skeletal muscle?

Sarcomere

Which of the following does not describe the dermis?

The layer of the skin where cells containing the pigment melanin are found

Which of the following is the most accurate description of the link between chromosomes and DNA?

Chromosomes include numerous genes, each of which is made up of a DNA sequence.

Which of the following hormones is not increased in plasma during dehydration?

Erythropoietin

Which of these bonds would we see between nitrogenous bases?

Hydrogen bonds

Which of the following correctly describes the law of segregation?

It states that allele pairs segregate during gametogenesis and reunite randomly during the fertilization process.

Which of the following is the process by which gametes divide and produce half the number of chromosomes found in a somatic cell?

Meiosis

What is the correct sequence in which inhaled air passes through the respiratory tract?

Nasal cavity Pharynx Larynx Trachea Bronchi Bronchioles

Melatonin is the hormone that regulates sleep-and-wake rhythm. Which of the following endocrine glands is responsible for producing melatonin?

Pineal

Which of the following prefixes would likely be the most appropriate for measuring the weight of a 2,500 g kitten?

Kilo

Which of the following is not true about reproductive hormones?

LH (luteinizing hormone) is produced by the posterior pituitary gland.

Using the provided image, choose the anatomical structure designated by letter B.

Left atrium

Which of the following causes bone matrix resorption during bone growth and remodeling?

Osteoclasts

Which of the following correctly describes the difference between compact bone and spongy bone?

Spongy bone is lighter than compact bone

The number of protons is the same as?

The atomic number

Which of the following correctly describes anatomical position?

Upright, arms at sides, palms facing anteriorly

Movement of molecules in a substance depends on _______ energy.

heat

Gas exchange between the blood and alveoli would be enhanced by ______________, but impeded by __________________.

increased alveolar surface area; increased membrane thickness

The majority of nutrient absorption occurs in the _________________.

small intestine

The _________________ is the blood vessel that carries oxygen depleted blood away from the heart.

(pulmonary artery)

Which of the following is the most plausible sequence of events?

Born into musical family; grows up around music; starts learning guitar; plays concert

Which of the following is not true about thermoregulation?

Contraction of arrector pili muscles facilitates vasodilation.

Which of the following statements about diffusion is true?

Gas exchange in tissues is an example of diffusion. Diffusion is the net movement of molecules or atoms from a region of higher concentration to a region of lower concentration. Osmosis is an example of diffusion Diffusion is a passive process

Which of the following descriptions is correct?

Gas: no definite volume and no definite shape

A lipid or fat molecule can be broken down into fatty acids and __________.

Glycerol

Which of the following antigen-specific immune cells produce cytokines, which facilitate various immune reactions?

Helper T-cell

Which of the following is a hypothesis?

If a student gets more sleep, they will get a higher test score.

Enzymes are biological catalysts that ___________.

Increase the rate of any given reaction

Which of the following does not describe a sarcomere?

It completely surrounds the muscle fiber.

Which of the following structures is correctly paired with its function?

Mouth- mechanical digestion

The respiratory system is composed of organs that facilitate gas exchange between the blood and the external environment. Which of the following describes the group of organs that function during gas exchange?

Organ System

In which segment of the nephron is glucose reabsorbed?

Proximal convoluted tubule

Which of these is a function of a ribosome?

Ribosomes can decode mRNA and assemble amino acids for protein synthesis.

Which of the following statements is true about protons?

The number of protons in the nucleus is the defining property of an element.

Which of the following statements is true about hydrogen bonds?

They form between a partial positively charged region on one molecule and the partial negatively charged region on another molecule

T-lymphocytes mature and become functional in which of the following organs?

Thymus

Why are control groups used in experiments?

To minimize the effect of variables

Which of the following comparisons between arteries and veins is true?

Veins have valves, and arteries do not.