What is facilitated diffusion?

molecules move across the plasma membrane with help from a membrane protein

What are the types of cartilage?

Hyaline, elastic, fibrocartilage

What happens during mitosis?

2 identical daughter cells are produced

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Biology Basics

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Test your knowledge on fundamental concepts and processes in biology

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Questions 18

Answers

1
Where is red bone marrow found?
In muscle tissue
In the skull
In long bones
In cartilage
2
What is produced during transcription?
Protein
mRNA
tRNA
DNA
3
What is the function of the plasma membrane?
Energy production
Protein synthesis
Regulates entry/exit
DNA storage
4
What is intramembranous ossification?
Bone repair process
Bone growth in length
Bone development from membrane
Bone development from cartilage
5
What is homeostasis in biological systems?
Unstable state
Random fluctuation
Dynamic equilibrium
Static condition
6
What is bone reabsorption?
Bone breakdown
Bone growth
Bone repair
Bone formation
7
What are proteins made of?
Fatty acids
Carbohydrates
Amino acids
Nucleotides
8
What characterizes epithelial tissue?
Loose connective
Fat storage
Highly vascularized
Avascular and protective
9
What is an example of positive feedback?
Childbirth contractions
Water balance
Blood sugar regulation
Body temperature control
10
What is facilitated diffusion?
molecules move across the plasma membrane with help from a membrane protein
molecules move across the plasma membrane with no assistance
molecules move across plasma membrane via electrochemical gradient
molecule mover across plasma membrane via ATP
11
Which nitrogenous bases are in DNA?
A, T, C, G
A, T, G, U
A, U, C, G
A, T, C, U
12
Which body cavity contains the heart?
Thoracic cavity
Cranial cavity
Abdominal cavity
Pelvic cavity
13
Where does transcription occur?
Mitochondria
Nucleus
Cytoplasm
Ribosome
14
What is the normal pH of blood?
5.5
6.0
8.0
7.4
15
What are the types of cartilage?
Bone, muscle, nerve
Hyaline, elastic, fibrocartilage
Adipose, areolar, cartilage
Dense, loose, reticular
16
What hormone regulates bone reabsorption?
Calcitonin
Insulin
Adrenaline
Parathyroid hormone
17
What happens during mitosis?
4 daughter cells are produced
2 daughter cells with double the amount of DNA
2 identical daughter cells are produced
2 daughter cells are produced each with half the amount of DNA
18
Which describes a negative feedback loop?
Amplifies changes
Maintains chaos
Reduces changes
Ignores stimuli

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