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TEAS 7 Science TEAS 7 Practice Exam 4 The cytoskeleton of a cell is comprised ...

The cytoskeleton of a cell is comprised of which of the following macromolecules?

A. Carbohydrates

B. Nucleic acids

C. Proteins

D. Lipids

Answer Explanation:

The cytoskeleton of a cell is a complex network of filaments and tubules that provides structural support, shape, movement, and organization to the cell and its components.

The cytoskeleton is composed mainly of proteins, which are macromolecules made of amino acids linked by peptide bonds. The three main types of proteins that form the cytoskeleton are microtubules, microfilaments, and intermediate filaments. Each type has a different structure, function, and distribution within the cell. 

Therefore, the Correct Answer is C.

More Questions on TEAS 7 Science

  • Q #1: Which of the following are used to determine a person's DNA sequence?

    A. Enzymes

    B. Blood types

    C. Genes

    D. Hormones

    Answer Explanation

    Genes are used in techniques like DNA sequencing to determine a person's DNA sequence. DNA sequencing involves determining the order of nucleotides (A, T, C, and G) in a DNA molecule. Genes are used to replicate and amplify DNA segments, allowing researchers to analyze the sequence of nucleotides present in a person's DNA

  • Q #2: Testosterone is categorized as which of the following types of hormones?

    A. Progestin

    B. Androgen

    C. Aldosterone

    D. Estrogen

    Answer Explanation

    Testosterone is a hormone that belongs to the class of androgens, which are responsible for the development and maintenance of male characteristics. Androgens are synthesized from cholesterol and can be converted into other types of hormones, such as estrogens and progestins. Aldosterone is a different type of hormone that regulates the balance of salt and water in the body. 

     

  • Q #3: Which of the following glands synthesizes antidiuretic hormone?

    A. Pancreas

    B. Pineal gland

    C. Hypothalamus

    D. Thymus

    Answer Explanation

    Antidiuretic hormone (ADH) is a peptide hormone that regulates the water balance in the body by increasing the reabsorption of water by the kidneys. ADH is synthesized by the hypothalamus, a part of the brain that controls many functions, such as appetite, sleep, and body temperature. ADH is then stored and released by the posterior pituitary gland, which is located at the base of the brain. 

     

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